{"id":29380,"date":"2026-11-05T03:41:32","date_gmt":"2026-11-05T03:41:32","guid":{"rendered":"https:\/\/www.wjwsy.com\/?p=29380"},"modified":"2026-11-05T03:45:08","modified_gmt":"2026-11-05T03:45:08","slug":"usb-c-pinout-guide","status":"publish","type":"post","link":"https:\/\/www.wjwsy.com\/es\/usb-c-pinout-guide\/","title":{"rendered":"USB-C Pinout Explained: All 24 Pins, Functions &amp; Wiring Guide"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"29380\" class=\"elementor elementor-29380\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-641e65e e-flex e-con-boxed e-con e-parent\" data-id=\"641e65e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b08c42d elementor-widget elementor-widget-html\" data-id=\"b08c42d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<!-- ============================================================\r\n     USB-C Pinout Explained: All 24 Pins, Functions & Wiring Guide \u2013 \u5b8c\u6574 HTML \u6392\u7248\r\n     \u4eff\u7167 DC \u8fde\u63a5\u5668 \/ USB-C Cable \u6392\u7248\u89c4\u8303\uff0c\u4fdd\u7559\u5168\u90e8\u539f\u6587\u5185\u5bb9\r\n     \u56fe\u7247\u94fe\u63a5\u5df2\u6309\u7528\u6237\u63d0\u4f9b\u5730\u5740\u63d2\u5165\u5408\u9002\u4f4d\u7f6e\r\n     \u6ce8\uff1a\u4e3b\u6807\u9898\u4f7f\u7528 H2\uff1b\u5927\u8282\u5e8f\u53f7\u5df2\u8865\u5145\r\n     ============================================================ -->\r\n\r\n<style>\r\n    \/* =====================================================================\r\n       USB-C Pinout \u2013 Article Stylesheet (\u7edf\u4e00\u7248)\r\n       ===================================================================== *\/\r\n\r\n    \/* ---------- Design Tokens ---------- *\/\r\n    .dc-guide {\r\n        --dc-primary: #0b6e4f;\r\n        --dc-primary-dark: #064e3b;\r\n        --dc-accent: #10b981;\r\n        --dc-accent-soft: #d1fae5;\r\n        --dc-ink: #1f2937;\r\n        --dc-ink-soft: #4b5563;\r\n        --dc-muted: #6b7280;\r\n        --dc-line: #e5e7eb;\r\n        --dc-line-soft: #f1f5f9;\r\n        --dc-bg: #ffffff;\r\n        --dc-bg-soft: #f8fafc;\r\n        --dc-bg-callout: #f0fdf4;\r\n        --dc-shadow: 0 4px 16px rgba(11, 110, 79, 0.10);\r\n        --dc-shadow-hover: 0 10px 30px rgba(11, 110, 79, 0.22);\r\n        --dc-radius: 12px;\r\n        --dc-radius-lg: 18px;\r\n        --dc-maxw: 1130px;\r\n        --dc-font: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto,\r\n            \"Helvetica Neue\", \"PingFang SC\", \"Microsoft YaHei\", sans-serif;\r\n    }\r\n\r\n    \/* ---------- Article Container ---------- *\/\r\n    .dc-guide {\r\n        max-width: var(--dc-maxw);\r\n        margin: 0 auto;\r\n        padding: 32px 28px 80px;\r\n        font-family: var(--dc-font);\r\n        color: var(--dc-ink);\r\n        font-size: 17px;\r\n        line-height: 1.78;\r\n        background:\r\n            radial-gradient(circle at 0% 0%, rgba(16, 185, 129, 0.06), transparent 42%),\r\n            radial-gradient(circle at 100% 0%, rgba(11, 110, 79, 0.05), transparent 42%),\r\n            var(--dc-bg);\r\n        scroll-behavior: smooth;\r\n        border-left: 2px solid var(--dc-line-soft);\r\n        border-right: 2px solid var(--dc-line-soft);\r\n        box-shadow: 0 0 0 1px var(--dc-line-soft), 0 8px 24px rgba(0, 0, 0, 0.02);\r\n        position: relative;\r\n    }\r\n\r\n    .dc-guide::before,\r\n    .dc-guide::after {\r\n        content: '';\r\n        position: absolute;\r\n        top: 0;\r\n        bottom: 0;\r\n        width: 1px;\r\n        background: linear-gradient(180deg, transparent, var(--dc-accent-soft), transparent);\r\n        opacity: 0.3;\r\n        pointer-events: none;\r\n    }\r\n  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       border-radius: 4px;\r\n        background: linear-gradient(90deg, var(--dc-primary), var(--dc-accent));\r\n    }\r\n\r\n    \/* ---------- Hero Header Card ---------- *\/\r\n    .dc-hero {\r\n        position: relative;\r\n        margin: 0 0 32px;\r\n        padding: 40px 48px;\r\n        border-radius: 18px;\r\n        background:\r\n            radial-gradient(1200px 520px at 100% -30%, rgba(16, 185, 129, 0.35), transparent 60%),\r\n            radial-gradient(1000px 520px at 0% 140%, rgba(6, 95, 70, 0.5), transparent 58%),\r\n            linear-gradient(135deg, #065f46 0%, #0b6e4f 50%, #10b981 100%);\r\n        color: #ffffff;\r\n        overflow: hidden;\r\n        animation: dc-fade-up 0.5s ease both;\r\n        --hero-text: #ffffff;\r\n    }\r\n\r\n    .dc-hero-badge {\r\n        display: inline-block;\r\n        padding: 8px 20px;\r\n        margin-bottom: 24px;\r\n        font-size: 12px;\r\n        font-weight: 700;\r\n        letter-spacing: 0.14em;\r\n        text-transform: uppercase;\r\n        color: rgba(255, 255, 255, 0.88) !important;\r\n        background: rgba(255, 255, 255, 0.06);\r\n        border: 1px solid rgba(255, 255, 255, 0.25);\r\n        border-radius: 999px;\r\n    }\r\n\r\n    \/* \u4e3b\u6807\u9898\uff1a\u6b64\u5904\u4f7f\u7528 H2 \u5143\u7d20\uff0c\u6837\u5f0f\u4fdd\u6301\u4e0e\u539f H1 \u4e00\u81f4 *\/\r\n    .dc-hero-title {\r\n        background: none !important;\r\n        -webkit-text-fill-color: var(--hero-text) !important;\r\n        background-clip: unset !important;\r\n        -webkit-background-clip: unset !important;\r\n        margin: 0 0 16px !important;\r\n        padding: 0 !important;\r\n        color: var(--hero-text) !important;\r\n        border: none !important;\r\n        font-size: clamp(30px, 4.2vw, 44px) !important;\r\n        font-weight: 800 !important;\r\n        line-height: 1.18;\r\n        letter-spacing: -0.015em;\r\n    }\r\n\r\n    .dc-hero-title::after {\r\n        display: none 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cursor: default;\r\n    }\r\n\r\n    .dc-hero-tags li:hover {\r\n        background: rgba(255, 255, 255, 0.13);\r\n        border-color: rgba(255, 255, 255, 0.3);\r\n        color: #ffffff !important;\r\n    }\r\n\r\n    \/* ---------- Transitional intro ---------- *\/\r\n    .dc-guide-intro {\r\n        margin: -4px 0 32px;\r\n        padding: 18px 24px;\r\n        font-size: 16.5px;\r\n        line-height: 1.72;\r\n        color: var(--dc-ink);\r\n        background:\r\n            linear-gradient(90deg, rgba(16, 185, 129, 0.08), rgba(16, 185, 129, 0.02) 70%, transparent);\r\n        border-left: 3px solid var(--dc-accent);\r\n        border-radius: 0 10px 10px 0;\r\n    }\r\n\r\n    .dc-guide-intro::first-line {\r\n        font-weight: 600;\r\n        color: var(--dc-primary-dark);\r\n    }\r\n\r\n    \/* ---------- Paragraphs ---------- *\/\r\n    .dc-paragraph {\r\n        margin: 0 0 20px;\r\n        color: var(--dc-ink);\r\n        transition: color 0.2s ease;\r\n    }\r\n\r\n    .dc-paragraph strong {\r\n        color: var(--dc-primary-dark);\r\n        font-weight: 700;\r\n    }\r\n\r\n    \/* ---------- Inline Links (\u8d34\u5408\u4e3b\u9898) ---------- *\/\r\n    .dc-paragraph a,\r\n    .dc-reading-list a {\r\n        color: var(--dc-primary);\r\n        font-weight: 600;\r\n        text-decoration: none;\r\n        border-bottom: 1px dashed transparent;\r\n        transition: color 0.2s ease, border-color 0.2s ease;\r\n    }\r\n\r\n    .dc-paragraph a:hover,\r\n    .dc-reading-list a:hover {\r\n        color: var(--dc-primary-dark);\r\n        border-bottom-color: var(--dc-accent);\r\n    }\r\n\r\n    \/* ---------- Section Titles (H2) ---------- *\/\r\n    .dc-section-title {\r\n        font-size: clamp(24px, 3.2vw, 30px);\r\n        font-weight: 800;\r\n        color: var(--dc-primary-dark);\r\n        margin: 56px 0 18px;\r\n        padding: 14px 0 14px 18px;\r\n        position: relative;\r\n        line-height: 1.3;\r\n        border-bottom: 1px solid var(--dc-line);\r\n        scroll-margin-top: 24px;\r\n    }\r\n\r\n    .dc-section-title::before {\r\n        content: \"\";\r\n        position: absolute;\r\n        left: 0;\r\n        top: 18px;\r\n        bottom: 18px;\r\n        width: 5px;\r\n        border-radius: 6px;\r\n        background: linear-gradient(180deg, var(--dc-primary), var(--dc-accent));\r\n        box-shadow: 0 0 0 0 rgba(11, 110, 79, 0.4);\r\n        transition: box-shadow 0.4s ease;\r\n    }\r\n\r\n    .dc-section-title:hover::before {\r\n        box-shadow: 0 0 0 4px rgba(11, 110, 79, 0.18);\r\n    }\r\n\r\n    .dc-section-title::after {\r\n        content: \"\";\r\n        display: block;\r\n        width: 0;\r\n        height: 3px;\r\n        margin-top: 12px;\r\n        border-radius: 3px;\r\n        background: linear-gradient(90deg, var(--dc-primary), var(--dc-accent));\r\n        transition: width 0.5s ease;\r\n    }\r\n\r\n    .dc-section-title:hover::after {\r\n        width: 100%;\r\n    }\r\n\r\n    \/* ---------- Subsection Titles (H3) ---------- *\/\r\n    .dc-subsection-title {\r\n        font-size: clamp(19px, 2.4vw, 22px);\r\n        font-weight: 700;\r\n        color: var(--dc-ink);\r\n        margin: 36px 0 12px;\r\n        padding-left: 14px;\r\n        position: relative;\r\n        line-height: 1.4;\r\n        scroll-margin-top: 24px;\r\n    }\r\n\r\n    .dc-subsection-title::before {\r\n        content: \"\";\r\n        position: absolute;\r\n        left: 0;\r\n        top: 6px;\r\n        bottom: 6px;\r\n        width: 4px;\r\n        border-radius: 4px;\r\n        background: linear-gradient(180deg, var(--dc-primary-dark), var(--dc-accent));\r\n        opacity: 0.85;\r\n        transition: width 0.25s ease, opacity 0.25s ease;\r\n    }\r\n\r\n    .dc-subsection-title:hover::before {\r\n        width: 6px;\r\n        opacity: 1;\r\n    }\r\n\r\n    .dc-subsection-title:hover {\r\n        color: var(--dc-primary-dark);\r\n    }\r\n\r\n    \/* ---------- Label ---------- *\/\r\n    .dc-label {\r\n        display: inline-flex;\r\n        align-items: center;\r\n        gap: 8px;\r\n        margin: 8px 0 12px;\r\n        padding: 6px 14px;\r\n        border-radius: 999px;\r\n        background: var(--dc-accent-soft);\r\n        color: var(--dc-primary-dark);\r\n        font-size: 14px;\r\n        font-weight: 600;\r\n        letter-spacing: 0.02em;\r\n        border: 1px solid rgba(16, 185, 129, 0.35);\r\n    }\r\n\r\n    .dc-label::before {\r\n        content: \"\\25B8\";\r\n        color: var(--dc-accent);\r\n        font-size: 14px;\r\n        line-height: 1;\r\n    }\r\n\r\n    \/* ---------- Lists ---------- *\/\r\n    .dc-reading-list {\r\n        list-style: none;\r\n        margin: 0 0 24px;\r\n        padding: 4px 0 4px 4px;\r\n    }\r\n\r\n    .dc-reading-list li {\r\n        position: relative;\r\n        padding: 8px 8px 8px 28px;\r\n        margin: 6px 0;\r\n        border-radius: 8px;\r\n        background: var(--dc-bg-soft);\r\n        border: 1px solid var(--dc-line);\r\n        transition: transform 0.2s ease, box-shadow 0.2s ease,\r\n            background 0.2s ease, border-color 0.2s ease;\r\n    }\r\n\r\n    .dc-reading-list li::before {\r\n        content: \"\";\r\n        position: absolute;\r\n        left: 11px;\r\n        top: 50%;\r\n        transform: translateY(-50%);\r\n        width: 8px;\r\n        height: 8px;\r\n        border-radius: 50%;\r\n        background: var(--dc-accent);\r\n        box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);\r\n        transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;\r\n    }\r\n\r\n    .dc-reading-list li:hover::before {\r\n        background: var(--dc-primary);\r\n        box-shadow: 0 0 0 4px rgba(11, 110, 79, 0.22);\r\n        transform: translateY(-50%) scale(1.15);\r\n    }\r\n\r\n    .dc-reading-list li:has(strong) {\r\n        border-left: 3px solid rgba(11, 110, 79, 0.35);\r\n    }\r\n\r\n    .dc-reading-list li:has(strong):hover {\r\n        border-left-color: var(--dc-primary);\r\n    }\r\n\r\n    \/* ---------- Spec Badges ---------- *\/\r\n    .dc-spec {\r\n        display: inline-block;\r\n        padding: 1px 8px;\r\n        margin: 0 1px;\r\n        border-radius: 6px;\r\n        font-weight: 700;\r\n        font-size: 0.94em;\r\n        line-height: 1.5;\r\n        color: var(--dc-primary-dark);\r\n        background: linear-gradient(135deg,\r\n                rgba(16, 185, 129, 0.14), rgba(11, 110, 79, 0.14));\r\n        border: 1px solid rgba(16, 185, 129, 0.35);\r\n        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;\r\n        transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;\r\n    }\r\n\r\n    .dc-spec:hover {\r\n        transform: translateY(-1px);\r\n        background: linear-gradient(135deg, var(--dc-accent), var(--dc-primary));\r\n        color: #fff;\r\n        border-color: transparent;\r\n        box-shadow: 0 4px 12px rgba(11, 110, 79, 0.25);\r\n    }\r\n\r\n    \/* ---------- Table ---------- *\/\r\n    .dc-table-wrap {\r\n        margin: 16px 0 24px;\r\n        overflow-x: auto;\r\n        border-radius: var(--dc-radius);\r\n        border: 1px solid var(--dc-line);\r\n        box-shadow: var(--dc-shadow);\r\n        background: #fff;\r\n    }\r\n\r\n    .dc-table-wrap table {\r\n        width: 100%;\r\n        border-collapse: collapse;\r\n        font-size: 15px;\r\n        line-height: 1.6;\r\n        min-width: 480px;\r\n    }\r\n\r\n    .dc-table-wrap thead th {\r\n        background: linear-gradient(135deg, var(--dc-primary-dark), var(--dc-primary));\r\n        color: #fff;\r\n        font-weight: 700;\r\n        padding: 14px 16px;\r\n        text-align: left;\r\n        letter-spacing: 0.02em;\r\n        font-size: 14px;\r\n    }\r\n\r\n    .dc-table-wrap tbody td {\r\n        padding: 12px 16px;\r\n        border-bottom: 1px solid var(--dc-line-soft);\r\n        color: var(--dc-ink);\r\n        vertical-align: top;\r\n    }\r\n\r\n    .dc-table-wrap tbody tr:last-child td {\r\n        border-bottom: none;\r\n    }\r\n\r\n    .dc-table-wrap tbody tr:hover {\r\n        background: rgba(16, 185, 129, 0.04);\r\n    }\r\n\r\n    .dc-table-wrap tfoot td {\r\n        padding: 12px 16px;\r\n        font-size: 14px;\r\n        color: var(--dc-muted);\r\n        background: var(--dc-bg-soft);\r\n        border-top: 1px solid var(--dc-line);\r\n        font-style: italic;\r\n        line-height: 1.6;\r\n    }\r\n\r\n    .dc-table-wrap tfoot td:first-child {\r\n        border-radius: 0 0 0 8px;\r\n    }\r\n    .dc-table-wrap tfoot td:last-child {\r\n        border-radius: 0 0 8px 0;\r\n    }\r\n\r\n    \/* ---------- Note Block ---------- *\/\r\n    .dc-note {\r\n        margin: 20px 0 24px;\r\n        padding: 16px 20px;\r\n        border-left: 4px solid var(--dc-accent);\r\n        background: var(--dc-bg-callout);\r\n        border-radius: 0 8px 8px 0;\r\n        font-size: 15.5px;\r\n        line-height: 1.7;\r\n        color: var(--dc-ink);\r\n    }\r\n\r\n    .dc-note strong {\r\n        color: var(--dc-primary-dark);\r\n    }\r\n\r\n    \/* ---------- Related Products \/ Contact CTA ---------- *\/\r\n    .dc-related-cta {\r\n        margin: 56px 0 0;\r\n        padding: 32px 36px;\r\n        border-radius: var(--dc-radius-lg);\r\n        background:\r\n            linear-gradient(135deg, rgba(11, 110, 79, 0.06), rgba(16, 185, 129, 0.06)),\r\n            var(--dc-bg-soft);\r\n        border: 1px solid var(--dc-line);\r\n        box-shadow: var(--dc-shadow);\r\n        animation: dc-fade-up 0.6s ease both;\r\n    }\r\n\r\n    .dc-related-cta h2 {\r\n        font-size: clamp(20px, 2.6vw, 24px);\r\n        font-weight: 800;\r\n        color: var(--dc-primary-dark);\r\n        margin: 0 0 10px;\r\n        padding: 0;\r\n        border: none;\r\n        line-height: 1.3;\r\n    }\r\n\r\n    .dc-related-cta p {\r\n        margin: 0 0 18px;\r\n        color: var(--dc-ink-soft);\r\n        font-size: 16px;\r\n        line-height: 1.7;\r\n    }\r\n\r\n    .dc-related-cta ul {\r\n        list-style: none;\r\n        margin: 0 0 28px;\r\n        padding: 0;\r\n    }\r\n\r\n    .dc-related-cta ul:last-of-type {\r\n        margin-bottom: 0;\r\n    }\r\n\r\n    .dc-related-cta li {\r\n        margin: 0 0 12px;\r\n    }\r\n\r\n    .dc-related-cta a {\r\n        display: inline-flex;\r\n        align-items: center;\r\n        gap: 6px;\r\n        color: #4b5563;\r\n        font-weight: 700;\r\n        font-size: 16px;\r\n        text-decoration: underline;\r\n        text-underline-offset: 3px;\r\n        transition: color 0.2s ease;\r\n    }\r\n\r\n    .dc-related-cta a:hover {\r\n        color: var(--dc-primary-dark);\r\n    }\r\n\r\n    .dc-related-cta a::after {\r\n        content: \"\u2192\";\r\n        font-weight: 700;\r\n        text-decoration: none;\r\n        display: inline-block;\r\n        transition: transform 0.2s ease;\r\n    }\r\n\r\n    .dc-related-cta a:hover::after {\r\n        transform: translateX(3px);\r\n    }\r\n\r\n    .dc-related-cta .dc-cta-block {\r\n        margin-bottom: 24px;\r\n    }\r\n\r\n    .dc-related-cta .dc-cta-block:last-child {\r\n        margin-bottom: 0;\r\n    }\r\n\r\n    \/* ---------- Animations ---------- *\/\r\n    @keyframes dc-fade-up {\r\n        from {\r\n            opacity: 0;\r\n            transform: translateY(12px);\r\n        }\r\n        to {\r\n            opacity: 1;\r\n            transform: translateY(0);\r\n        }\r\n    }\r\n\r\n    @keyframes dc-fade-down {\r\n        from {\r\n            opacity: 0;\r\n            transform: translateY(-10px);\r\n        }\r\n        to {\r\n            opacity: 1;\r\n            transform: translateY(0);\r\n        }\r\n    }\r\n\r\n    .dc-section-title,\r\n    .dc-subsection-title,\r\n    .dc-reading-list {\r\n        animation: dc-fade-up 0.5s ease both;\r\n    }\r\n\r\n    .dc-subsection-title {\r\n        animation-delay: 0.05s;\r\n    }\r\n    .dc-reading-list {\r\n        animation-delay: 0.1s;\r\n    }\r\n\r\n    \/* ---------- Reduced Motion ---------- *\/\r\n    @media (prefers-reduced-motion: reduce) {\r\n        .dc-guide *,\r\n        .dc-guide *::before,\r\n        .dc-guide *::after {\r\n            animation: none !important;\r\n            transition: none !important;\r\n            scroll-behavior: auto !important;\r\n        }\r\n        .dc-spec {\r\n            transition: none !important;\r\n        }\r\n    }\r\n\r\n    \/* ---------- Responsive ---------- *\/\r\n    @media (max-width: 640px) {\r\n        .dc-guide {\r\n            padding: 24px 16px 60px;\r\n            font-size: 16px;\r\n            border-left: none;\r\n            border-right: none;\r\n        }\r\n        .dc-article-title+.dc-paragraph {\r\n            font-size: 16px;\r\n        }\r\n        .dc-section-title {\r\n            margin-top: 40px;\r\n        }\r\n        .dc-reading-list li {\r\n            padding-left: 24px;\r\n        }\r\n        .dc-hero {\r\n            margin: 0 0 26px;\r\n            padding: 26px 22px;\r\n            border-radius: 14px;\r\n        }\r\n        .dc-hero-badge {\r\n            font-size: 10.5px;\r\n            letter-spacing: 0.12em;\r\n            padding: 6px 14px;\r\n            margin-bottom: 16px;\r\n        }\r\n        .dc-hero-title {\r\n            font-size: 26px !important;\r\n            margin-bottom: 12px !important;\r\n            line-height: 1.22;\r\n        }\r\n        .dc-hero-lead {\r\n            font-size: 15px !important;\r\n            line-height: 1.68 !important;\r\n            margin-bottom: 18px !important;\r\n        }\r\n        .dc-hero-tags li {\r\n            font-size: 12.5px;\r\n            padding: 7px 12px;\r\n        }\r\n        .dc-hero-tags {\r\n            gap: 8px;\r\n        }\r\n        .dc-table-wrap table {\r\n            font-size: 14px;\r\n            min-width: 380px;\r\n        }\r\n    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}\r\n\r\n    \/* \u5217\u8868\u9879\u60ac\u505c\u6548\u679c\uff1a\u5411\u53f3\u79fb\u52a8\u5e76\u9ad8\u4eae *\/\r\n    .dc-reading-list li:hover {\r\n        transform: translateX(6px);\r\n        background: var(--dc-accent-soft);\r\n        border-color: var(--dc-accent);\r\n        box-shadow: 0 4px 12px rgba(11, 110, 79, 0.15);\r\n    }\r\n    \r\n    #Content {\r\n        padding-top: 0;\r\n    }\r\n<\/style>\r\n\r\n<!-- ============================================================\r\n     \u6587\u7ae0\u5185\u5bb9\r\n     ============================================================ -->\r\n<div class=\"dc-guide\">\r\n\r\n    <!-- ===== HERO ===== -->\r\n    <div class=\"dc-hero\">\r\n        <div class=\"dc-hero-badge\">TECHNICAL GUIDE &nbsp;\u00b7&nbsp; USB-C PINOUT<\/div>\r\n        <!-- \u4e3b\u6807\u9898\uff1a\u4f7f\u7528 H2 -->\r\n        <h2 class=\"dc-hero-title\">USB-C Pinout Explained: All 24 Pins, Functions & Wiring Guide<\/h2>\r\n        <p class=\"dc-hero-lead\">\r\n            USB-C has become one of the most widely used connector types in modern electronic devices. Its reversible design, compact size, and ability to support power delivery and high-speed data transmission make it suitable for smartphones, laptops, tablets, monitors, and many other applications.\r\n            <br><br>\r\n            However, behind its simple appearance is a relatively complex 24-contact connector arrangement. Each contact has a specific function, including power delivery, grounding, data transmission, configuration detection, and auxiliary signaling.\r\n            <br><br>\r\n            Understanding the USB-C pinout is important when selecting cables, developing electronic products, designing custom wiring configurations, or evaluating USB-C cable specifications.\r\n            <br><br>\r\n            This guide explains the USB-C connector structure, the functions of its 24 pins, male and female connector differences, cable wiring principles, and the differences between USB 2.0 and USB 3.x connections.\r\n        <\/p>\r\n        <ul class=\"dc-hero-tags\">\r\n            <li>USB-C Pinout<\/li>\r\n            <li>24 Pins<\/li>\r\n            <li>VBUS<\/li>\r\n            <li>CC1\/CC2<\/li>\r\n            <li>Wiring Guide<\/li>\r\n        <\/ul>\r\n    <\/div>\r\n\r\n    <!-- ============================================================\r\n         1. USB-C Connector Overview\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-1\">1. USB-C Connector Overview<\/h2>\r\n\r\n    <!-- ===== \u56fe\u7247\u5360\u4f4d 1\uff08USB-C-Pinout.jpg - \u9650\u5bbd 500px\uff09 ===== -->\r\n    <img decoding=\"async\" src=\"https:\/\/www.wjwsy.com\/wp-content\/uploads\/2026\/11\/USB-C-Pinout.jpg\" alt=\"USB-C Pinout\" style=\"max-width:100%; width:800px; height:auto; border-radius:8px; display:block; margin-left:auto; margin-right:auto; margin-bottom:24px;\" onerror=\"this.style.display='none'\">\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C, also known as USB Type-C, is a reversible connector system designed for modern power and data connections.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Unlike older USB connectors that require a specific insertion orientation, USB-C plugs can be inserted in either direction. This is made possible by the symmetrical arrangement of contacts inside the connector.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A standard USB-C receptacle contains 24 contacts arranged in two rows, identified as A1\u2013A12 and B1\u2013B12.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">These contacts support several functions:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>Power delivery through VBUS.<\/li>\r\n        <li>Ground connections through GND.<\/li>\r\n        <li>USB 2.0 data transmission through D+ and D-.<\/li>\r\n        <li>High-speed data transmission through TX and RX differential pairs.<\/li>\r\n        <li>Configuration and power negotiation through CC pins.<\/li>\r\n        <li>Auxiliary signaling through SBU pins.<\/li>\r\n    <\/ul>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-1-1\">USB-C Is More Than a Connector Shape<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C describes the physical connector, not the complete performance capability of a cable or device.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Depending on the implementation, a USB-C connection may support:\r\n    <\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>USB 2.0 data transmission.<\/li>\r\n        <li>USB 3.x high-speed data transmission.<\/li>\r\n        <li>USB4.<\/li>\r\n        <li>USB Power Delivery (USB PD).<\/li>\r\n        <li>DisplayPort Alternate Mode.<\/li>\r\n        <li>Thunderbolt on compatible equipment.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Not every USB-C port or cable supports all these functions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For example, a USB-C cable may support 60W charging and USB 2.0 data transmission without supporting high-speed data or video output.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        When selecting a USB-C cable, power capability, data performance, and additional functions should be specified separately.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         2. What Is a USB-C Pinout?\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-2\">2. What Is a USB-C Pinout?<\/h2>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C pinout is the arrangement and functional assignment of the electrical contacts inside a USB Type-C connector.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Each contact is assigned a specific signal or power function. The arrangement allows a single connector to support different communication protocols and power configurations.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-2-1\">USB-C Connector Structure<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">A standard USB-C receptacle has:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>24 physical contacts.<\/li>\r\n        <li>Two rows of 12 contacts.<\/li>\r\n        <li>A reversible connection design.<\/li>\r\n        <li>Multiple power and ground contacts.<\/li>\r\n        <li>USB 2.0 and high-speed data signal contacts.<\/li>\r\n        <li>Configuration and auxiliary signal contacts.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">The two contact rows are identified as:<\/p>\r\n    <ul class=\"dc-reading-list\">\r\n        <li>A1 to A12.<\/li>\r\n        <li>B1 to B12.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        These pin identifiers are used in technical drawings, connector datasheets, PCB designs, and cable wiring specifications.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-2-2\">USB-C Male and Female Connectors<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C connectors are generally divided into two physical forms.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>USB-C Male Plug<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The male plug is commonly found at the end of a USB-C cable or adapter. It is inserted into the USB-C port of a device.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>USB-C Female Receptacle<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The female receptacle, also called a socket or port, is commonly installed on smartphones, laptops, chargers, hubs, and other electronic equipment.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The pin arrangement must be interpreted according to the connector type and viewing direction. A plug drawing and a receptacle drawing may appear reversed even though their electrical functions are designed to connect correctly.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         3. USB-C Male vs. Female Pinout Differences\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-3\">3. USB-C Male vs. Female Pinout Differences<\/h2>\r\n\r\n    <!-- ===== \u56fe\u7247\u5360\u4f4d 2\uff08USB-C-Pinout_2.webp - \u9650\u5bbd 500px\uff09 ===== -->\r\n    <img decoding=\"async\" src=\"https:\/\/www.wjwsy.com\/wp-content\/uploads\/2026\/11\/USB-C-Pinout_2.webp\" alt=\"USB-C Male vs Female Pinout\" style=\"max-width:100%; width:800px; height:auto; border-radius:8px; display:block; margin-left:auto; margin-right:auto; margin-bottom:24px; margin-top:16px;\" onerror=\"this.style.display='none'\">\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Although USB-C male and female connectors share the same general contact system, their physical arrangements and electrical implementations are not identical.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-3-1\">USB-C Receptacle<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The receptacle contains 24 contacts arranged in two rows.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It provides duplicated contact positions to support reversible plug insertion.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">For example:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>CC1 and CC2 help detect plug orientation.<\/li>\r\n        <li>The duplicated D+ and D- positions support USB 2.0 operation regardless of plug orientation.<\/li>\r\n        <li>Multiple VBUS and GND contacts provide power and return paths.<\/li>\r\n        <li>TX and RX pairs support high-speed data transmission.<\/li>\r\n    <\/ul>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-3-2\">USB-C Plug<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        A standard USB-C plug has a different contact implementation.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For a standard USB-C cable, one CC contact is used for configuration communication, while the other contact position is used for VCONN when required.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The standard USB-C plug also does not implement both duplicated USB 2.0 D+\/D- contact positions in the same way as the receptacle.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        This is why the plug and receptacle pin diagrams should always be checked separately.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-3-3\">Why Is the Difference Important?<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Understanding male and female pin arrangements is particularly important during:\r\n    <\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>USB-C connector selection.<\/li>\r\n        <li>PCB footprint design.<\/li>\r\n        <li>Cable assembly development.<\/li>\r\n        <li>Custom connector wiring.<\/li>\r\n        <li>Electrical testing.<\/li>\r\n        <li>Connector troubleshooting.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Using the wrong pinout reference can result in incorrect wiring, connection failures, or damaged components.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         4. USB Type-C Connector Pin Functions\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-4\">4. USB Type-C Connector Pin Functions<\/h2>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The 24 contacts inside a USB-C receptacle are divided into several functional groups.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Understanding these groups makes it easier to identify the purpose of each pin.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-1\">Complete USB-C 24-Pin Pinout Table<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The following table shows the standard USB-C receptacle contact assignments.\r\n    <\/p>\r\n\r\n    <div class=\"dc-table-wrap\">\r\n        <table>\r\n            <thead>\r\n                <tr>\r\n                    <th>A-Side Pin<\/th>\r\n                    <th>Signal<\/th>\r\n                    <th>B-Side Pin<\/th>\r\n                    <th>Signal<\/th>\r\n                <\/tr>\r\n            <\/thead>\r\n            <tbody>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A1<\/span><\/td>\r\n                    <td>GND<\/td>\r\n                    <td><span class=\"dc-spec\">B12<\/span><\/td>\r\n                    <td>GND<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A2<\/span><\/td>\r\n                    <td>TX1+<\/td>\r\n                    <td><span class=\"dc-spec\">B11<\/span><\/td>\r\n                    <td>RX1+<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A3<\/span><\/td>\r\n                    <td>TX1-<\/td>\r\n                    <td><span class=\"dc-spec\">B10<\/span><\/td>\r\n                    <td>RX1-<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A4<\/span><\/td>\r\n                    <td>VBUS<\/td>\r\n                    <td><span class=\"dc-spec\">B9<\/span><\/td>\r\n                    <td>VBUS<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A5<\/span><\/td>\r\n                    <td>CC1<\/td>\r\n                    <td><span class=\"dc-spec\">B8<\/span><\/td>\r\n                    <td>SBU2<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A6<\/span><\/td>\r\n                    <td>D+<\/td>\r\n                    <td><span class=\"dc-spec\">B7<\/span><\/td>\r\n                    <td>D-<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A7<\/span><\/td>\r\n                    <td>D-<\/td>\r\n                    <td><span class=\"dc-spec\">B6<\/span><\/td>\r\n                    <td>D+<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A8<\/span><\/td>\r\n                    <td>SBU1<\/td>\r\n                    <td><span class=\"dc-spec\">B5<\/span><\/td>\r\n                    <td>CC2<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A9<\/span><\/td>\r\n                    <td>VBUS<\/td>\r\n                    <td><span class=\"dc-spec\">B4<\/span><\/td>\r\n                    <td>VBUS<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A10<\/span><\/td>\r\n                    <td>RX2-<\/td>\r\n                    <td><span class=\"dc-spec\">B3<\/span><\/td>\r\n                    <td>TX2-<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A11<\/span><\/td>\r\n                    <td>RX2+<\/td>\r\n                    <td><span class=\"dc-spec\">B2<\/span><\/td>\r\n                    <td>TX2+<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">A12<\/span><\/td>\r\n                    <td>GND<\/td>\r\n                    <td><span class=\"dc-spec\">B1<\/span><\/td>\r\n                    <td>GND<\/td>\r\n                <\/tr>\r\n            <\/tbody>\r\n        <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        This table describes the receptacle contact assignments. It should not be interpreted as a direct wire-to-wire connection diagram for a USB-C cable. Plug contact assignments and cable wiring must be checked against the applicable connector and cable specifications.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-2\">4.1 VBUS and GND: Power and Ground Pins<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        VBUS and GND are responsible for carrying electrical power through the USB-C connection.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>VBUS<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        VBUS is the main power supply connection.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A standard USB-C connection begins with 5V power. With compatible equipment and successful USB Power Delivery negotiation, the voltage can increase to supported levels.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        USB PD 3.1 Extended Power Range (EPR) supports voltage levels up to 48V under the appropriate operating conditions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>GND<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        GND provides the electrical ground and return path.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The USB-C receptacle has four VBUS contacts and four GND contacts. Multiple contacts help distribute electrical current and provide power and return paths.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-3\">4.2 D+ and D-: USB 2.0 Data Pins<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        D+ and D- form the differential data pair used by USB 2.0.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        These signals support data communication at speeds of up to 480 Mbps.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The USB-C receptacle contains duplicated D+ and D- contact positions to accommodate reversible plug insertion.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        However, a standard USB-C cable generally uses one USB 2.0 differential data pair rather than two independent USB 2.0 data channels.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-4\">4.3 TX and RX: High-Speed Data Pins<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        TX and RX refer to transmit and receive differential signal pairs.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        These contacts support high-speed data communication in compatible USB 3.x and other supported operating modes.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The USB-C receptacle includes two TX pairs and two RX pairs:\r\n    <\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>TX1+ and TX1-.<\/li>\r\n        <li>TX2+ and TX2-.<\/li>\r\n        <li>RX1+ and RX1-.<\/li>\r\n        <li>RX2+ and RX2-.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        These signal paths allow compatible connections to support higher data rates than USB 2.0.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Because USB-C is reversible, the active signal paths may need to be reconfigured according to the plug orientation.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-5\">4.4 CC1 and CC2: Configuration Channel Pins<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        CC stands for Configuration Channel.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        CC1 and CC2 are important for detecting and managing USB-C connections.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">Their main functions include:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>Detecting cable attachment and removal.<\/li>\r\n        <li>Determining plug orientation.<\/li>\r\n        <li>Identifying source and sink roles.<\/li>\r\n        <li>Advertising available current through USB Type-C signaling.<\/li>\r\n        <li>Supporting USB Power Delivery communication.<\/li>\r\n        <li>Supporting Alternate Mode configuration.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The CC connection is also important for determining how the system should configure its signal paths.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-6\">4.5 VCONN: Power for Cable Electronics<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        VCONN provides power to electronic components inside certain USB-C cables and accessories.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For example, some active cables and electronically marked cables contain internal circuitry that requires power.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        VCONN is supplied through the applicable CC contact position that is not being used for the active configuration channel.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        This allows the connected system to power cable electronics when required.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-4-7\">4.6 SBU1 and SBU2: Sideband Use Pins<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        SBU stands for Sideband Use.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        SBU1 and SBU2 are auxiliary signal contacts used by supported Alternate Modes.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        They can carry additional signals required by compatible interfaces, such as certain DisplayPort Alternate Mode configurations.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        These pins are not used for ordinary USB 2.0 data transmission.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         5. How Are the Pins of a USB-C Cable Connected?\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-5\">5. How Are the Pins of a USB-C Cable Connected?<\/h2>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C cable wiring depends on the cable's intended data performance, power rating, and supported functions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C cable designed only for basic charging and USB 2.0 data transmission has a different internal construction from a full-featured cable supporting high-speed data transmission and advanced operating modes.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-5-1\">5.1 USB-C to USB-C Cable Connections<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C to USB-C cable connects corresponding electrical functions between its two plugs, but high-speed signal wiring requires more careful consideration.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">Common connection groups include:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>VBUS power conductors.<\/li>\r\n        <li>GND conductors.<\/li>\r\n        <li>USB 2.0 D+ and D- conductors.<\/li>\r\n        <li>CC-related configuration connections.<\/li>\r\n        <li>High-speed TX and RX differential pairs in full-featured cables.<\/li>\r\n        <li>SBU conductors where required.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        For full-featured cables, the TX and RX differential pairs are arranged according to the applicable USB Type-C cable wiring specification. Transmit and receive paths are connected appropriately between the two ends rather than simply matching every pin number.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The exact contact mapping depends on the plug design, cable assembly type, and viewing orientation used in the connector drawing.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-5-2\">5.2 What Happens When a USB-C Plug Is Reversed?<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C supports reversible insertion, so the connected system must determine the orientation of the plug.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The CC pins help identify the orientation and allow the system to configure the appropriate signal paths.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For high-speed data transmission, the system may use a multiplexer to route the appropriate TX and RX differential pairs.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        This ensures that the connection can operate correctly even when the plug is inserted in the opposite orientation.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-5-3\">5.3 Full-Featured USB-C Cable Wiring<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Full-featured USB-C cables include additional conductors and signal paths to support higher-speed data transmission.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Depending on the supported USB specification, their internal construction may include:\r\n    <\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>USB 2.0 D+ and D- conductors.<\/li>\r\n        <li>SuperSpeed TX and RX differential pairs.<\/li>\r\n        <li>VBUS power conductors.<\/li>\r\n        <li>Ground conductors.<\/li>\r\n        <li>CC and VCONN-related connections.<\/li>\r\n        <li>SBU conductors.<\/li>\r\n        <li>Shielding and drain structures.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The exact conductor arrangement depends on the cable category and applicable specification.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C connector alone does not guarantee that all these conductors are present.\r\n    <\/p>\r\n\r\n   <!-- ===== \u56fe\u7247\u5360\u4f4d 3\uff08USB-C-Pinout_3.webp - \u9650\u5bbd 500px\uff09 ===== -->\r\n    <img decoding=\"async\" src=\"https:\/\/www.wjwsy.com\/wp-content\/uploads\/2026\/11\/USB-C-Pinout_3.webp\" alt=\"USB 2.0 vs USB 3.x Pinout\" style=\"max-width:100%; width:800px; height:auto; border-radius:8px; display:block; margin-left:auto; margin-right:auto; margin-bottom:24px; margin-top:16px;\" onerror=\"this.style.display='none'\">\r\n\r\n    <!-- ============================================================\r\n         6. USB 2.0 vs. USB 3.x USB-C Cable Pinouts\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-6\">6. USB 2.0 vs. USB 3.x USB-C Cable Pinouts<\/h2>\r\n\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C cables can support different data transmission standards.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Although they may use the same external connector, their internal wiring and performance can vary considerably.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-6-1\">USB 2.0 USB-C Cable<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB 2.0 USB-C cables use the D+ and D- differential data pair.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">Common characteristics include:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>Maximum signaling data rate of 480 Mbps.<\/li>\r\n        <li>Simpler internal data wiring.<\/li>\r\n        <li>Suitable for basic data transfer and charging applications.<\/li>\r\n        <li>No SuperSpeed TX\/RX differential pairs required.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        These cables are commonly used for smartphone charging and everyday data connections.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-6-2\">USB 3.x USB-C Cable<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB 3.x USB-C cables include additional high-speed differential pairs for SuperSpeed communication.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Depending on the supported USB generation, they can provide higher data transmission rates.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">Examples include:<\/p>\r\n\r\n    <div class=\"dc-table-wrap\">\r\n        <table>\r\n            <thead>\r\n                <tr>\r\n                    <th>USB Standard<\/th>\r\n                    <th>Maximum Signaling Data Rate<\/th>\r\n                <\/tr>\r\n            <\/thead>\r\n            <tbody>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">USB 2.0<\/span><\/td>\r\n                    <td>480 Mbps<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">USB 3.2 Gen 1<\/span><\/td>\r\n                    <td>5 Gbps<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">USB 3.2 Gen 2<\/span><\/td>\r\n                    <td>10 Gbps<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">USB 3.2 Gen 2x2<\/span><\/td>\r\n                    <td>20 Gbps<\/td>\r\n                <\/tr>\r\n            <\/tbody>\r\n        <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Actual transfer performance depends on the host, device, cable construction, and supported operating mode.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-6-3\">Key Differences<\/h3>\r\n\r\n    <div class=\"dc-table-wrap\">\r\n        <table>\r\n            <thead>\r\n                <tr>\r\n                    <th>Caracter\u00edstica<\/th>\r\n                    <th>USB 2.0 USB-C Cable<\/th>\r\n                    <th>USB 3.x USB-C Cable<\/th>\r\n                <\/tr>\r\n            <\/thead>\r\n            <tbody>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">Main Data Pins<\/span><\/td>\r\n                    <td>D+ y D-<\/td>\r\n                    <td>D+ and D- plus SuperSpeed pairs<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">Construcci\u00f3n interna<\/span><\/td>\r\n                    <td>Simpler<\/td>\r\n                    <td>More complex<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">Velocidad de datos<\/span><\/td>\r\n                    <td>Up to 480 Mbps<\/td>\r\n                    <td>5\u201320 Gbps, depending on standard<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">High-Speed Differential Pairs<\/span><\/td>\r\n                    <td>Not required<\/td>\r\n                    <td>Required for supported SuperSpeed modes<\/td>\r\n                <\/tr>\r\n                <tr>\r\n                    <td><span class=\"dc-spec\">Aplicaciones t\u00edpicas<\/span><\/td>\r\n                    <td>Charging and basic data transfer<\/td>\r\n                    <td>External SSDs, docking stations, and high-speed peripherals<\/td>\r\n                <\/tr>\r\n            <\/tbody>\r\n        <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB 3.2 Gen 2x2 uses two SuperSpeed lanes. It is important not to describe all USB 3.x connections as having the same number of active high-speed lanes.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It is also important to remember that charging power and data speed are separate specifications.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C cable can support high charging power while providing only USB 2.0 data transmission.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Likewise, a high-speed USB-C cable does not automatically support every charging power level.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         7. Why Do 24-Pin USB-C Connectors Not Always Use 24 Wires?\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-7\">7. Why Do 24-Pin USB-C Connectors Not Always Use 24 Wires?<\/h2>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        A USB-C receptacle has 24 physical contacts, but this does not mean every USB-C cable needs 24 separate internal conductors.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The actual number of conductors depends on the cable's intended functions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For example, a USB-C cable designed for charging and USB 2.0 data transfer does not need all the high-speed TX and RX signal pairs used in a full-featured cable.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-7-1\">Common USB-C Cable Construction Differences<\/h3>\r\n\r\n    <p class=\"dc-paragraph\"><strong>Charging-Focused USB-C Cable<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A charging-focused cable may include power and ground conductors, configuration-related connections, and the USB 2.0 data pair if data transfer is supported.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>USB 2.0 USB-C Cable<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A USB 2.0 cable uses the basic data pair and the required power and configuration connections.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\"><strong>Full-Featured USB-C Cable<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        A full-featured cable requires additional high-speed signal conductors and shielding to support its specified data capabilities.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Depending on the design, it may also include electronic components such as an E-Marker.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-7-2\">What Is the Role of an E-Marker?<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        An E-Marker is an electronic identification component used in applicable USB-C cable assemblies.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It communicates information about the cable's capabilities to connected devices.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For example, a compliant 5A USB-C cable requires an appropriate E-Marker to identify its supported current capability.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For higher-power EPR applications, the cable must also be specifically designed and rated for the required operating conditions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        An E-Marker does not automatically make a cable support USB4, video output, or a particular data speed. These capabilities depend on the complete cable design.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For more information, see <a href=\"https:\/\/www.wjwsy.com\/what-is-e-marker-chip\/\" target=\"_blank\" rel=\"noopener\">What Is an E-Marker Chip?<\/a>.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         8. How Are the Core Wires Soldered to a USB-C Connector?\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-8\">8. How Are the Core Wires Soldered to a USB-C Connector?<\/h2>\r\n\r\n\r\n    <p class=\"dc-paragraph\">\r\n        USB-C connector assembly requires accurate electrical connections because the contacts are small and closely spaced.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The wiring process depends on the connector structure, cable design, and manufacturing requirements.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Not every USB-C connector uses the same termination method. Some cable assemblies use internal PCBs, while others use different contact termination structures.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-8-1\">Common USB-C Cable Assembly Steps<\/h3>\r\n\r\n    <p class=\"dc-paragraph\"><strong>1. Cable Preparation<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The outer jacket is stripped to expose the internal conductors and shielding structures.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Each conductor is prepared according to the required assembly specifications.\r\n    <\/p>\r\n\r\n    <p class=\"dc-paragraph\"><strong>2. Conductor Identification<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The internal wires are identified according to their electrical functions.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">These may include:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>Power conductors.<\/li>\r\n        <li>Ground conductors.<\/li>\r\n        <li>USB 2.0 data wires.<\/li>\r\n        <li>High-speed differential pairs.<\/li>\r\n        <li>Configuration-related wires.<\/li>\r\n        <li>Auxiliary signal conductors.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Correct identification is important because different USB-C cable designs use different internal wiring arrangements.\r\n    <\/p>\r\n\r\n    <p class=\"dc-paragraph\"><strong>3. Connector Preparation<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The connector's internal PCB or contact structure is prepared for conductor attachment.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Depending on the connector design, the process may use soldering, crimping, or other specified termination methods.\r\n    <\/p>\r\n\r\n    <p class=\"dc-paragraph\"><strong>4. Wire Termination<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The conductors are connected to their corresponding contacts according to the approved wiring diagram.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        High-speed signal pairs require particular attention to signal integrity, conductor routing, and shielding.\r\n    <\/p>\r\n\r\n    <p class=\"dc-paragraph\"><strong>5. Inspection and Electrical Testing<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        After assembly, the cable should undergo appropriate inspections and electrical tests.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">These may include:<\/p>\r\n\r\n    <ul class=\"dc-reading-list\">\r\n        <li>Continuity testing.<\/li>\r\n        <li>Short-circuit testing.<\/li>\r\n        <li>Open-circuit testing.<\/li>\r\n        <li>Resistance testing.<\/li>\r\n        <li>Power capability verification.<\/li>\r\n        <li>Data transmission testing.<\/li>\r\n        <li>Signal integrity testing for applicable high-speed designs.<\/li>\r\n    <\/ul>\r\n\r\n    <p class=\"dc-paragraph\"><strong>6. Overmolding and Final Assembly<\/strong><\/p>\r\n    <p class=\"dc-paragraph\">\r\n        After the electrical connections pass the required checks, the connector may proceed to insulation, overmolding, and final assembly.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        The finished cable should be evaluated against its approved product specifications.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         9. Common USB-C Manufacturing Terminology\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-9\">9. Common USB-C Manufacturing Terminology<\/h2>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        When developing or sourcing custom USB-C cables, understanding common manufacturing terminology helps buyers communicate technical requirements more accurately.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-1\">Surface Mount Technology (SMT)<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        SMT is a manufacturing process used to mount electronic components directly onto the surface of a printed circuit board.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It is commonly used in electronic assemblies, including certain USB-C connector designs.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-2\">Soldadura por reflujo<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Reflow soldering uses controlled heating to melt solder paste and establish electrical and mechanical connections between components and PCB pads.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It is widely used in SMT production.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-3\">Wave Soldering<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Wave soldering is a process in which a PCB passes over a controlled wave of molten solder.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It is commonly used for suitable through-hole component assemblies.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-4\">Quality Control (QC)<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Quality control involves inspection and testing procedures used to verify that products meet their defined specifications.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For USB-C cables, this may include electrical continuity, resistance, appearance, connector assembly, and functional testing.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-5\">Alternate Mode<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Alternate Mode allows compatible USB-C connections to carry signals from other interfaces.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For example, DisplayPort Alternate Mode enables compatible USB-C connections to transmit video signals.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        However, both connected devices and the cable must support the required implementation.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-6\">Thermal Management<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        Thermal management refers to the methods used to control heat generated during electrical operation.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        It is particularly important for high-power USB-C cables and connectors, where conductor resistance, contact quality, and operating current can influence temperature.\r\n    <\/p>\r\n\r\n    <h3 class=\"dc-subsection-title\" id=\"section-9-7\">Cumplimiento de RoHS<\/h3>\r\n\r\n    <p class=\"dc-paragraph\">\r\n        RoHS refers to restrictions on certain hazardous substances in electrical and electronic equipment.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Applicable material and component requirements should be checked when developing products for regulated markets.\r\n    <\/p>\r\n\r\n    <!-- ============================================================\r\n         10. Conclusion: Understanding USB-C Pinouts for Better Cable Design\r\n         ============================================================ -->\r\n    <h2 class=\"dc-section-title\" id=\"section-10\">10. Conclusion: Understanding USB-C Pinouts for Better Cable Design<\/h2>\r\n\r\n\r\n    <p class=\"dc-paragraph\">\r\n        The USB-C connector combines power, data, configuration, and auxiliary signal functions within a compact 24-contact receptacle.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Understanding the pinout is essential when selecting connectors, developing cable assemblies, troubleshooting connections, or defining custom USB-C cable specifications.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        However, the number of physical contacts does not determine the complete performance of a USB-C cable.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        Power rating, data speed, video support, internal wiring, and E-Marker configuration must all be considered separately.\r\n    <\/p>\r\n    <p class=\"dc-paragraph\">\r\n        For product developers and buyers, choosing the correct connector arrangement and cable construction helps ensure that the final product meets its intended electrical and functional requirements.\r\n    <\/p>\r\n\r\n    <!-- ===== \u5e95\u90e8\u7edf\u4e00\u5185\u94fe\u6a21\u5757 ===== -->\r\n    <div class=\"dc-related-cta\">\r\n\r\n        <div class=\"dc-cta-block\">\r\n            <h2>Related USB-C Cable Solutions<\/h2>\r\n            <p>Explore WJW's USB Type-C Cable Products for different charging power levels, data transmission requirements, and custom cable configurations.<\/p>\r\n            <ul>\r\n                <li><a href=\"https:\/\/www.wjwsy.com\/category\/usb-type-c-cable\/\" target=\"_blank\" rel=\"noopener\">Explore USB Type-C Cables<\/a><\/li>\r\n            <\/ul>\r\n        <\/div>\r\n\r\n        <div class=\"dc-cta-block\">\r\n            <h2>Need a Custom USB-C Cable?<\/h2>\r\n            <p>WJW supports custom USB cable projects with different connector configurations, charging specifications, cable constructions, and application requirements.<\/p>\r\n            <ul>\r\n                <li><a href=\"https:\/\/www.wjwsy.com\/contact-us\/\" target=\"_blank\" rel=\"noopener\">Contact WJW<\/a><\/li>\r\n            <\/ul>\r\n        <\/div>\r\n\r\n    <\/div>\r\n\r\n<\/div>\r\n<!-- end .dc-guide -->\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>TECHNICAL GUIDE &nbsp;\u00b7&nbsp; USB-C PINOUT USB-C Pinout Explained: All 24 Pins, Functions &#038; Wiring Guide USB-C has become one of the most widely used connector types<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":13,"featured_media":29375,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-29380","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-usb-cable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.7 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>USB-C Pinout: 24-Pin Diagram, Functions &amp; Wiring Guide | WJW<\/title>\n<meta name=\"description\" content=\"Explore the USB-C pinout, including all 24 pins, their functions, wiring connections, and USB 2.0 vs. USB 3.x differences.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wjwsy.com\/es\/usb-c-pinout-guide\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB-C Pinout Explained: All 24 Pins, Functions &amp; 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