{"id":5595,"date":"2026-06-11T02:53:19","date_gmt":"2026-06-11T02:53:19","guid":{"rendered":"https:\/\/materialparts.com\/cp2103-gm\/"},"modified":"2026-06-12T09:11:40","modified_gmt":"2026-06-12T09:11:40","slug":"cp2103-gm","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/cp2103-gm\/","title":{"rendered":"CP2103-GM"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The CP2103-GM from Silicon Labs is a USB-to-UART bridge controller supporting 1Mbps data rate with integrated EEPROM in QFN-28 for USB connectivity solutions.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n
\u5305\u88c5<\/td>\nQFN-28 (5x5mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CP2103-GM from Silicon Labs is a USB-to-UART bridge controller supporting 1Mbps data rate with integrated EEPROM in QFN-28 for USB connectivity solutions. Key Specifications Package QFN-28 (5x5mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[184],"class_list":["post-5595","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-silabs"],"acf":{"brief_explanation":"USB-to-UART bridge, 1Mbps, QFN-28","date_code":"","package_case":"QFN-28 (5x5mm)","in_stock":8201,"datasheet":"https:\/\/www.silabs.com\/developer-tools\/interface-converters","price":"$3.20 @ 1ku","product_introduction":"The CP2103-GM from Silicon Labs is a USB-to-UART bridge controller supporting 1Mbps data rate with integrated EEPROM in QFN-28 for USB connectivity solutions.","working_principle":"The CP2103-GM is a USB 2.0 Full-Speed to UART bridge controller from Silicon Labs in QFN-28 (5x5mm), providing a complete USB-to-serial solution with no external firmware required. The device integrates: (1) USB 2.0 Full-Speed transceiver (12Mbps); (2) USB protocol controller (handles enumeration, SETUP packets, and data transfers); (3) UART with full modem control (TXD, RXD, CTS, RTS, DSR, DTR, DCD, RI); (4) Internal 3.3V regulator (powered from VREGIN); (5) 256-byte transmit and 256-byte receive FIFO buffers; (6) Configurable GPIO pins (GPIO0-2). The device appears as a Virtual COM Port (VCP) on the host PC after installing the Silicon Labs driver. The UART baud rate is programmable from 300bps to 1Mbps. The modem control lines allow hardware flow control (CTS\/RTS) and DTR\/DSR for device reset and configuration. The GPIO pins can be configured as: LED indicators (TX\/RX activity), hardware flow control extensions, or general-purpose I\/O. The device supports USB suspend mode: when the host enters suspend, the SUSPEND pin goes HIGH, allowing the external circuit to reduce power consumption. The on-chip EPROM stores USB vendor ID (VID), product ID (PID), serial number, and device description strings, allowing customization without external Flash. The -GM suffix specifies QFN-28, industrial temperature (-40C to +85C). Applications include: USB debug ports, firmware update interfaces, and industrial USB-to-RS-232\/RS-485 adapters.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VREGIN<\/td>Power<\/td>USB bus power input (4.0-5.25V, powers internal 3.3V regulator)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>VBUS<\/td>Input<\/td>USB VBUS detect (connects to USB VBUS through 47k resistor)<\/td><\/tr>
      4-5<\/td>D+\/D-<\/td>I\/O<\/td>USB data lines (connect to USB connector with 1.5k pull-up on D+)<\/td><\/tr>
      6-9<\/td>TXD\/RXD\/CTS#\/RTS#<\/td>I\/O<\/td>UART data and flow control (3.3V CMOS levels)<\/td><\/tr>
      10-13<\/td>DSR#\/DTR#\/DCD#\/RI#<\/td>I\/O<\/td>UART modem status lines (3.3V CMOS)<\/td><\/tr>
      14-17<\/td>GPIO0-GPIO2\/SUSPEND<\/td>I\/O<\/td>General-purpose I\/O \/ USB suspend indication<\/td><\/tr>
      18-28<\/td>VDD\/GND\/NC<\/td>Power<\/td>3.3V regulated output \/ ground \/ no connect<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Silicon Labs<\/td>CP2103-GM<\/td>QFN-28<\/td>Same device, SiLabs brand<\/td><\/tr>
      Silicon Labs<\/td>CP2102N-A02-GQFN24<\/td>QFN-24<\/td>Newer generation, fewer pins, lower cost<\/td><\/tr>
      FTDI<\/td>FT232RL<\/td>SSOP-28<\/td>USB-to-UART, FTDI brand, more features<\/td><\/tr>
      WCH<\/td>CH340G<\/td>SOP-16<\/td>USB-to-UART, WCH brand, very low cost<\/td><\/tr>
      Microchip<\/td>MCP2200-I\/SO<\/td>SOIC-20<\/td>USB-to-UART, Microchip brand<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5595"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5595\/revisions"}],"predecessor-version":[{"id":6179,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5595\/revisions\/6179"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5595"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}