사양
FT234XD-R is a compact ultra-small form factor USB 2.0 Full-Speed to basic UART bridge IC developed by FTDI Chip, belonging to the FT-X series. It integrates internal oscillator, 2048-byte EEPROM and USB termination resistors, designed for space-constrained consumer and compact embedded devices that only require standard serial communication without advanced Bit-Bang functions of FT232RL.
👉 It is not the multi-function FT232RL with abundant CBUS pins and Bit-Bang IO expansion. FT234XD-R features tiny 3×3mm 12-pin WDFN packaging, fewer peripheral pins, lower power draw and simpler circuit design, perfect for mini dongles, wearable devices and compact serial adapters.
주요 기능
- Integrated USB & UART Core
- Compliant with USB 2.0 Full-Speed (12 Mbps), on-chip hardware processes full USB protocol stack, no custom USB firmware needed
- UART baud rate range: 300 Baud ~ 3 Mbps; supports 7/8 data bits, 1/2 stop bits, odd/even/no parity
- Hardware RTS/CTS flow control supported; TX/RX each with 512-byte FIFO buffer to avoid data overflow
- Only basic serial signals: TXD, RXD, RTS#, CTS# plus one configurable CBUS pin for LED indicator
- Fully Self-Contained Minimal External Circuit
- Built-in internal precision oscillator, eliminating external 12MHz crystal and load capacitors
- Embedded 2048-byte non-volatile EEPROM to store USB VID/PID, serial number, product string and CBUS configuration
- Integrated USB differential line termination resistors, reduces BOM component count drastically
- Low Power & Wide Voltage Operation
- Wide supply voltage: VCC 2.97V ~ 5.5V; VCCIO 1.8V ~ 3.3V with 5V-tolerant IO pins
- Ultra-low power consumption: 8mA typical active current, only 70μA suspend mode current, ideal for battery-powered equipment
- Built-in dedicated USB battery charging detection pin to identify charging adapters for fast charge control
- Driver Compatibility
- Royalty-free official VCP (Virtual COM Port) drivers for Windows, macOS, Linux, Android and embedded WinCE
- Supports D2XX direct access API for custom PC software control, consistent with other FTDI FT-X family chips
- Package & Industrial Specifications
- Package: 12-pin 3mm×3mm WDFN surface mount; suffix -R represents tape-and-reel packaging for automated SMT mass production
- Industrial wide temperature range: -40°C ~ +85°C continuous operation
- MSL3 moisture sensitivity rating, RoHS lead-free compliant, passed USB-IF certification
일반적인 애플리케이션
Mini USB-to-TTL serial adapter cables and compact debug dongles
Wearable devices, wireless earbuds and portable fitness equipment serial communication
Small IoT sensor nodes, battery-powered environmental data loggers
Bluetooth/Wi-Fi module USB communication interface boards
Handheld portable test instruments and miniature diagnostic tools
Smart card readers, USB fingerprint modules and compact access control hardware
Consumer electronic accessories, set-top box auxiliary debug ports
Low-cost embedded development boards with limited PCB footprint
Medical portable monitoring equipment compact serial data upload modules
LXB Semicon supplies original FTDI FT234XD-R tiny USB-to-UART bridge IC
