{"id":3539,"date":"2026-06-06T10:01:38","date_gmt":"2026-06-06T10:01:38","guid":{"rendered":"https:\/\/materialparts.com\/c8051f340-gqr\/"},"modified":"2026-06-06T10:01:38","modified_gmt":"2026-06-06T10:01:38","slug":"c8051f340-gqr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/c8051f340-gqr\/","title":{"rendered":"C8051F340-GQR"},"content":{"rendered":"

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

The C8051F340-GQR from Silicon Labs is a full-speed USB 2.0 mixed-signal 8051 MCU with 64KB Flash, 4352 bytes RAM, 10-bit 200 ksps ADC, and integrated USB transceiver with clock recovery. It requires no external crystal, resistors, or voltage regulator for USB operation. Housed in a 48-pin LQFP (7x7mm) package.<\/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
\u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0627\u062a<\/td>\n8051 (pipelined, up to 48 MIPS)<\/td>\n<\/tr>\n
\u0641\u0644\u0627\u0634<\/td>\n64 KB (ISP, 512-byte sectors)<\/td>\n<\/tr>\n
RAM<\/td>\n4352 bytes<\/td>\n<\/tr>\n
USB<\/td>\n2.0 Full-Speed (12 Mbps)<\/td>\n<\/tr>\n
ADC<\/td>\n10-bit, 17-channel, 200 ksps<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n40 (5V tolerant)<\/td>\n<\/tr>\n
Interfaces<\/td>\nUART, SPI, SMBus\/I2C, USB<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.7V – 5.25V<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nLQFP-48 (7 x 7 mm)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Integrated USB 2.0 controller with transceiver and clock recovery<\/li>\n
  • 8 flexible USB endpoints with 1KB FIFO buffer RAM<\/li>\n
  • 10-bit 200 ksps ADC with 17-channel analog MUX<\/li>\n
  • 40 GPIO pins, all 5V tolerant with high sink current<\/li>\n
  • On-chip voltage regulator and temperature sensor<\/li>\n
  • External Memory Interface (EMIF)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • USB peripherals (custom HID, CDC, mass storage)<\/li>\n
    • Industrial USB data acquisition<\/li>\n
    • Medical device interfaces<\/li>\n
    • Consumer electronics with USB connectivity<\/li>\n
    • Embedded USB bridge and adapter solutions<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The C8051F340-GQR from Silicon Labs is a full-speed USB 2.0 mixed-signal 8051 MCU with 64KB Flash, 4352 bytes RAM, 10-bit 200 ksps ADC, and integrated USB transceiver with clock recovery. It requires no external crystal, resistors, or voltage regulator for USB operation. Housed in a 48-pin LQFP (7x7mm) package. Key Specifications Core 8051 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[184],"class_list":["post-3539","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-silabs"],"acf":{"brief_explanation":"8051 USB MCU, 64KB Flash, 48MIPS, 10-bit ADC, USB 2.0 FS, LQFP-48","date_code":"","package_case":"LQFP-48 (7 x 7 x 1.0 mm)","in_stock":8912,"datasheet":"https:\/\/www.silabs.com\/documents\/public\/data-sheets\/C8051F34x.pdf","price":"$4.50 @ 1ku","product_introduction":"The C8051F340-GQR from Silicon Labs is a fully integrated mixed-signal USB MCU featuring an on-board USB 2.0 function controller with integrated transceiver and on-chip clock recovery. No external resistors, crystal, or voltage regulator are required for USB applications. The device includes a high-speed 8051 core achieving 48 MIPS, 64KB ISP Flash, 4352 bytes RAM, a 10-bit 17-channel 200 ksps ADC, 2 comparators, and 40 GPIO pins (all 5V tolerant). With SPI, I2C\/SMBus, dual UARTs, and an external memory interface, it provides comprehensive connectivity in a 48-pin LQFP package.","working_principle":"The C8051F340-GQR integrates a USB 2.0 function controller with the 8051 MCU core. The USB controller handles all protocol layers including packet formatting, CRC generation\/checking, and endpoint management using 1KB of dedicated FIFO RAM across 8 configurable endpoints. The integrated clock recovery circuit derives the 48 MHz USB clock from the USB bus signal, eliminating the need for an external crystal. The 10-bit SAR ADC uses a 17-channel analog multiplexer with programmable acquisition time. The pipelined 8051 core achieves single-clock execution for most instructions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      P0-P4<\/td>~40<\/td>I\/O<\/td>General-purpose I\/O (5V tolerant)<\/td><\/tr>
      VDD<\/td>3<\/td>Power<\/td>Digital supply (2.7-5.25V)<\/td><\/tr>
      GND<\/td>3<\/td>Ground<\/td>Ground<\/td><\/tr>
      D+, D-<\/td>2<\/td>I\/O<\/td>USB data pins<\/td><\/tr>
      VREGIN<\/td>1<\/td>Power<\/td>USB regulator input<\/td><\/tr>
      VBUS<\/td>1<\/td>Input<\/td>USB VBUS sense<\/td><\/tr>
      RST<\/td>1<\/td>I\/O<\/td>Reset \/ C2 debug<\/td><\/tr>
      VREF<\/td>1<\/td>I\/O<\/td>Voltage reference in\/out<\/td><\/tr><\/table>","application_scenarios":"
      • USB peripherals: Custom HID devices, virtual COM ports, and mass storage<\/li>
      • Industrial data acquisition: USB-connected multi-channel ADC systems<\/li>
      • Medical interfaces: USB-connected patient monitoring and diagnostic devices<\/li>
      • USB bridges: Protocol conversion between USB and UART\/SPI\/I2C<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Silicon Labs<\/td>C8051F341-GQR<\/td>LQFP-48<\/td>32KB Flash variant<\/td><\/tr>
        Silicon Labs<\/td>C8051F380-GQR<\/td>LQFP-48<\/td>Next-gen USB MCU<\/td><\/tr>
        Microchip<\/td>PIC18F4550-I\/PT<\/td>TQFP-44<\/td>USB 2.0, 32KB Flash<\/td><\/tr>
        ST<\/td>STM32F103C8T6<\/td>LQFP-48<\/td>Cortex-M3, 72MHz, USB FS<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3539","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=3539"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3539\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3539"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3539"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}