{"id":3235,"date":"2026-06-01T00:07:06","date_gmt":"2026-06-01T00:07:06","guid":{"rendered":"https:\/\/materialparts.com\/ft232rl\/"},"modified":"2026-06-01T00:12:51","modified_gmt":"2026-06-01T00:12:51","slug":"ft232rl","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ft232rl\/","title":{"rendered":"FT232RL"},"content":{"rendered":"

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

The FT232RL from FTDI Chip is a USB to serial UART interface IC in a 28-pin SSOP package. It handles the entire USB protocol on-chip with no USB firmware programming required, supporting data rates from 300 baud to 3 Mbaud, integrated EEPROM, and multiple interface modes including UART, bit-bang, and FIFO.<\/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
USB Standard<\/td>\nUSB 2.0 Full Speed (12 Mbps)<\/td>\n<\/tr>\n
UART Data Rate<\/td>\n300 baud to 3 Mbaud (TTL)<\/td>\n<\/tr>\n
TX Buffer Size<\/td>\n256 bytes<\/td>\n<\/tr>\n
RX Buffer Size<\/td>\n128 bytes<\/td>\n<\/tr>\n
Internal EEPROM<\/td>\n1024 bits (VID, PID, serial, strings)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.3 V to 5.25 V (single supply)<\/td>\n<\/tr>\n
CBUS I\/O Pins<\/td>\n4 (configurable)<\/td>\n<\/tr>\n
I\/O Voltage<\/td>\n1.8 V to 5 V (via VCCIO)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Entire USB protocol handled on-chip, no firmware programming<\/li>\n
  • Integrated 1024-bit EEPROM for device descriptors and CBUS configuration<\/li>\n
  • Integrated USB termination resistors and clock generation<\/li>\n
  • Configurable CBUS I\/O pins (TXLED, RXLED, TXDEN, PWREN, SLEEP)<\/li>\n
  • Synchronous and asynchronous bit-bang interface options<\/li>\n
  • UART with 7\/8 data bits, 1\/2 stop bits, and full parity options<\/li>\n
  • Integrated level converter for 1.8 V to 5 V logic interfacing<\/li>\n
  • FTDIChip-ID unique security dongle feature<\/li>\n
  • 48\/24\/12\/6 MHz clock output options<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • USB to RS232\/RS422\/RS485 converters<\/li>\n
    • Legacy peripheral USB upgrade<\/li>\n
    • MCU\/FPGA programming and debug interfaces<\/li>\n
    • USB instrumentation and industrial control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The FT232RL from FTDI Chip is a USB to serial UART interface IC in a 28-pin SSOP package. It handles the entire USB protocol on-chip with no USB firmware programming required, supporting data rates from 300 baud to 3 Mbaud, integrated EEPROM, and multiple interface modes including UART, bit-bang, and FIFO. Key Specifications […]<\/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":[13,20],"tags":[],"chip_brand":[186],"class_list":["post-3235","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ftdi"],"acf":{"brief_explanation":"USB-UART bridge IC, 12Mbps, 3Mbaud, 1024-bit EEPROM, integrated clock, SSOP-28","date_code":"","package_case":"SSOP-28 (10.2 x 5.3 x 1.75 mm)","in_stock":6700,"datasheet":"https:\/\/ftdichip.com\/wp-content\/uploads\/2020\/08\/DS_FT232R.pdf","price":"$3.46 @ 1ku","product_introduction":"The FT232RL from FTDI Chip is one of the most widely-used USB to serial UART interface ICs in the embedded industry, offering a complete single-chip solution for adding USB connectivity to UART-based systems. The device handles the entire USB protocol on-chip, including enumeration, data transfer, and suspend\/resume, eliminating the need for USB firmware development. It integrates a 1024-bit EEPROM for storing USB Vendor ID (VID), Product ID (PID), serial number, product description strings, and CBUS pin configuration, all programmable in-circuit over USB using the FTDI MPROG utility. The UART supports data rates from 300 baud to 3 Mbaud with 256-byte transmit and 128-byte receive buffers that use smoothing technology for high throughput. The VCCIO pin allows the UART and CBUS I\/O voltages to be set independently from 1.8 V to 5 V, enabling direct interfacing with a wide range of logic families. Beyond basic UART mode, the FT232RL supports synchronous and asynchronous bit-bang modes for direct I\/O control, and a CBUS bit-bang mode for simple digital I\/O without UART involvement.","working_principle":"The FT232RL operates through five functional blocks: (1) The USB transceiver and SIE (Serial Interface Engine) handle all USB 2.0 full-speed physical layer and protocol layer operations, including NRZI encoding\/decoding, CRC generation\/checking, and packet formatting. Integrated 1.5 kOhm pull-up on D+ signals full-speed capability. (2) The USB protocol processor manages device enumeration, endpoint configuration, and data transfer between the USB host and the internal buffers. It implements both CDC (Virtual COM Port) and D2XX (direct driver) data paths. (3) The UART engine converts between parallel buffer data and serial UART format with programmable baud rate, data format, and flow control (hardware RTS\/CTS or software XON\/XOFF). The baud rate is generated from the internal clock with fine resolution. (4) The EEPROM controller reads the 1024-bit configuration EEPROM at power-up to load device descriptors and CBUS settings. The EEPROM can be reprogrammed over USB at any time. (5) The level converter adjusts the UART and CBUS I\/O voltages based on the VCCIO pin, enabling 1.8 V to 5 V logic compatibility regardless of the core VCC supply.","pin_description":"
      Pin No.<\/td>Pin Name<\/td>Function<\/td><\/tr>
      1<\/td>TXD<\/td>UART transmit data output<\/td><\/tr>
      2<\/td>DTR#<\/td>Data terminal ready (output)<\/td><\/tr>
      3<\/td>RTS#<\/td>Request to send (output)<\/td><\/tr>
      4<\/td>VCCIO<\/td>I\/O voltage reference (1.8-5 V)<\/td><\/tr>
      5<\/td>RXD<\/td>UART receive data input<\/td><\/tr>
      6-10<\/td>Mixed<\/td>RI#, DCD#, DSR#, CTS#, CBUS0-4<\/td><\/tr>
      15<\/td>USBDP<\/td>USB D+ (with integrated 1.5k pull-up)<\/td><\/tr>
      16<\/td>USBDM<\/td>USB D-<\/td><\/tr>
      17<\/td>3V3OUT<\/td>3.3 V LDO output (50 mA max)<\/td><\/tr>
      20<\/td>VCC<\/td>Core supply (4.0-5.25 V)<\/td><\/tr><\/table>","application_scenarios":"
      • USB-to-RS232 converter cables and dongles where the integrated USB resistors, clock, and EEPROM eliminate all external active components for a minimal BOM design<\/li>
      • MCU and FPGA programming interfaces where the 3 Mbaud UART and bit-bang modes support high-speed firmware download and JTAG-like debug communication<\/li>
      • USB instrumentation and industrial control using the D2XX direct driver for low-latency, high-throughput data acquisition with 256-byte TX and 128-byte RX buffers<\/li>
      • Security dongle applications leveraging the unique FTDIChip-ID burned into each device during manufacture for software copy protection<\/li><\/ul>","alternative_models":"
        Model<\/td>Brand<\/td>Max Baud<\/td>EEPROM<\/td>Package<\/td><\/tr>
        FT232RQ<\/td>FTDI<\/td>3 Mbaud<\/td>1024 bit<\/td>QFN-32<\/td><\/tr>
        MCP2200-I\/SO<\/td>Microchip<\/td>1 Mbaud<\/td>256 bytes<\/td>SOIC-20<\/td><\/tr>
        CP2102N-A02-GQFN24<\/td>Silicon Labs<\/td>2 Mbaud<\/td>576 bytes<\/td>QFN-24<\/td><\/tr>
        CH340G<\/td>WCH<\/td>2 Mbaud<\/td>-<\/td>SOIC-16<\/td><\/tr>
        CH9350<\/td>WCH<\/td>1 Mbaud<\/td>-<\/td>SSOP-20<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3235","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=3235"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3235\/revisions"}],"predecessor-version":[{"id":3251,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3235\/revisions\/3251"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3235"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3235"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}