FT4232HL-REEL is the fifth-generation four-channel USB 2.0 high-speed to multi-functional UART/MPSSE interface chip launched by FTDI. It adopts a 64-pin LQFP surface mount packaging and can provide up to 4 configurable serial communication channels.
This chip is fully compatible with the USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) specifications. Its most distinctive feature is that it has two channels with built-in MPSSE (Multi-Protocol Synchronous Serial Engine), which can be independently configured and used for synchronous serial protocols such as JTAG, SPI, and I²C. It supports a UART data rate of up to 12Mbaud, and the operating power supply voltage ranges from 3V to 3.6V.
Features ：
• Number of channels: 4 independent UARTs (where channels A and B can be configured as MPSSE engines)
• USB standard: USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) compatibility
• UART baud rate: up to 12 Mbaud
• MPSSE support: Capable of simulating various synchronous serial modes such as JTAG, SPI, I2C, and Bit-Bang.
• Operating voltage: 3V ~ 3.6V
• Working current: Typical value 70mA
• Pin compatibility: Consistent with the FT4232H series
• Operating temperature range: -40°C to +85°C
• Compact package: 64-LQFP, size 10mm × 10mm
• MSL level: Level-3 (168 hours)
• Environmental compliance: Compliant with RoHS 3 standards
Application：
• Multi-serial port communication expansion: Single-chip USB to four-channel UART (RS232/RS422/RS485)
• Debugging and Simulation: Using MPSSE to simulate JTAG for FPGA/ARM/single-chip microcontroller debugging
• Multi-protocol interface: 1 JTAG + 3 UARTs, 1 SPI + 3 UARTs, and various other combinations.
• Industrial control: PLC, instruments and meters, data acquisition systems
• Medical equipment: Physiological parameter collection, firmware update of the equipment
• Embedded system upgrade: MCU/PLD/FPGA firmware programming
