{"id":9615,"date":"2026-07-04T10:33:38","date_gmt":"2026-07-04T10:33:38","guid":{"rendered":"https:\/\/materialparts.com\/ch9102f\/"},"modified":"2026-07-04T10:33:38","modified_gmt":"2026-07-04T10:33:38","slug":"ch9102f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ch9102f\/","title":{"rendered":"CH9102F"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The CH9102F from Nanjing Qinheng Microelectronics (WCH) is a single-channel USB to UART bridge converter chip in a compact SOP-16 package. Supporting USB full-speed (12 Mbps) with data transfer rates up to 2 Mbps on the UART side, it provides a cost-effective solution for adding USB serial connectivity to embedded systems, development boards, and debug interfaces.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
USB Interface<\/td>\nUSB 2.0 Full-Speed (12 Mbps)<\/td>\n<\/tr>\n
UART Baud Rate<\/td>\nUp to 2 Mbps<\/td>\n<\/tr>\n
Data Bits<\/td>\n5, 6, 7, 8<\/td>\n<\/tr>\n
Stop Bits<\/td>\n1, 1.5, 2<\/td>\n<\/tr>\n
Parity<\/td>\nNone, Even, Odd, Mark, Space<\/td>\n<\/tr>\n
GPIO<\/td>\nConfigurable I\/O pins<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.3 V (integrated 3.3 V LDO from USB 5 V)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOP-16<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to 85\u00b0C<\/td>\n<\/tr>\n
Drivers<\/td>\nWindows, Linux, macOS, Android<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Single-channel USB to UART bridge in compact SOP-16 package<\/li>\n
  • Built-in 3.3 V LDO regulator \u2014 can be powered directly from USB 5 V<\/li>\n
  • Configurable UART parameters for maximum protocol flexibility<\/li>\n
  • Supports modem handshake signals (RTS, CTS, DTR, DSR, DCD, RI)<\/li>\n
  • Low cost alternative to FTDI FT232 series for basic USB-UART applications<\/li>\n
  • Free VCP drivers for major operating systems<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • USB-to-serial debug adapters for MCU development<\/li>\n
    • Embedded system console port connectivity<\/li>\n
    • Arduino and development board USB serial interface<\/li>\n
    • Industrial equipment serial port expansion<\/li>\n
    • IoT device firmware programming interface<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CH9102F from Nanjing Qinheng Microelectronics (WCH) is a single-channel USB to UART bridge converter chip in a compact SOP-16 package. Supporting USB full-speed (12 Mbps) with data transfer rates up to 2 Mbps on the UART side, it provides a cost-effective solution for adding USB serial connectivity to embedded systems, development boards, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[866],"chip_brand":[283],"class_list":["post-9615","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-ch9102f","chip_brand-wch"],"acf":{"brief_explanation":"Single-channel USB to UART bridge, 2 Mbps, SOP-16, integrated 3.3V LDO, low cost","date_code":"","package_case":"SOP-16","in_stock":4568,"datasheet":"https:\/\/www.wch-ic.com\/downloads\/CH9102F_DS.html","price":"$0.45 @ 1+","product_introduction":"The CH9102F from WCH (Nanjing Qinheng Microelectronics) is a single-channel USB to UART bridge converter chip. It provides a cost-effective solution for converting USB to a standard UART serial port, with data rates up to 2 Mbps. The device integrates a 3.3 V LDO regulator that can be powered directly from the USB 5 V supply, simplifying external component requirements. It supports full modem handshake signals (RTS, CTS, DTR, DSR, DCD, RI) and configurable UART parameters (data bits, stop bits, parity). WCH provides free Virtual COM Port (VCP) drivers for Windows, Linux, macOS, and Android, enabling rapid integration into existing serial communication software.","working_principle":"The CH9102F operates as a USB-to-UART protocol bridge: (1) USB Interface \u2014 the device enumerates as a USB CDC-ACM device (Virtual COM Port), receiving USB data packets from the host computer at USB full-speed (12 Mbps); (2) Protocol Conversion \u2014 the USB data is unpacked from CDC-ACM frames and converted to standard UART format (configurable baud rate up to 2 Mbps, data\/stop\/parity bits); (3) UART Transmit\/Receive \u2014 converted data is shifted out on the TX pin with the configured UART timing, while received data on the RX pin is packed into USB frames and sent to the host; (4) Flow Control \u2014 hardware flow control signals (RTS\/CTS, DTR\/DSR) are mapped between USB control signals and UART handshake pins for reliable data transfer at high baud rates.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td><\/tr>
      2<\/td>TXD<\/td>UART transmit data output<\/td><\/tr>
      3<\/td>RXD<\/td>UART receive data input<\/td><\/tr>
      4<\/td>V3<\/td>Internal 3.3 V LDO output \/ external 3.3 V input<\/td><\/tr>
      5<\/td>UD+<\/td>USB D+ signal<\/td><\/tr>
      6<\/td>UD-<\/td>USB D- signal<\/td><\/tr>
      7<\/td>VIN<\/td>USB 5 V input (powers internal LDO)<\/td><\/tr>
      8<\/td>RTS<\/td>Request to Send (modem output)<\/td><\/tr>
      9<\/td>DTR<\/td>Data Terminal Ready (modem output)<\/td><\/tr>
      10<\/td>CTS<\/td>Clear to Send (modem input)<\/td><\/tr>
      11<\/td>DSR<\/td>Data Set Ready (modem input)<\/td><\/tr>
      12<\/td>DCD<\/td>Data Carrier Detect (modem input)<\/td><\/tr>
      13<\/td>RI<\/td>Ring Indicator (modem input)<\/td><\/tr>
      14<\/td>GPIO0<\/td>Configurable general-purpose I\/O<\/td><\/tr>
      15<\/td>GPIO1<\/td>Configurable general-purpose I\/O<\/td><\/tr>
      16<\/td>VDD<\/td>3.3 V power supply<\/td><\/tr><\/table>","application_scenarios":"
      • MCU development board USB serial debug port with DTR auto-reset for Arduino-style programming<\/li>
      • IoT device firmware update interface using USB-UART bridge at 2 Mbps for fast binary downloads<\/li>
      • Industrial equipment serial console adapter replacing legacy RS-232 ports with USB connectivity<\/li>
      • Portable USB-to-UART cable adapter for field service technicians debugging embedded systems<\/li>
      • 3D printer controller board USB interface with RTS\/DTR for automatic bootloader entry<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        CH340G<\/td>WCH<\/td>Older generation WCH USB-UART, more pins<\/td><\/tr>
        CH9102X<\/td>WCH<\/td>Same function in MSOP-10 package<\/td><\/tr>
        FT232RL<\/td>FTDI<\/td>Industry standard, higher cost, more features<\/td><\/tr>
        CP2102N<\/td>Silicon Labs<\/td>Competitive USB-UART bridge, QFN-24<\/td><\/tr>
        PL2303TA<\/td>Prolific<\/td>Budget USB-UART alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=9615"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9615\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9615"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9615"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}