FT4232H-56Q-REEL

• Hi-Speed USB to Quad-Channel Serial Interface Bridge
• Multi-Protocol Channels Supporting UART, JTAG, SPI and I2C
• 1.62V to 1.98V Core Supply Range
• 56-Pin VQFN Package
• -40C to 85C Operating Temperature Range
• In production, RoHS compliant, Supplied in Tape and Reel

The FTDI FT4232H-56Q-REEL is a Hi-Speed USB interface controller that presents four independent serial channels to a USB host, with multi-protocol channels supporting UART, JTAG, SPI and I2C as described in the product record. A bridge device of this type lets a PC that has only USB ports drive embedded and legacy serial buses without an add-in card or a driver written from scratch. The catalog records a 1.62V to 1.98V supply range, corresponding to the device core rail, in a 56-pin VQFN rated from -40C to 85C. It is in production, RoHS compliant and supplied in tape and reel. This record holds only ten verified attributes, so I/O voltage, data rate and buffer detail should be confirmed against the manufacturer datasheet.

Quad-channel USB bridges such as the FT4232H-56Q-REEL are the core of USB-attached debug and programming tools - JTAG and serial-wire probes, flash and FPGA programmers, and the onboard debug interfaces built into development boards, where one device provides both the programming channel and a console UART. They are also used to build multi-port USB to RS232 and RS485 converters, to control test fixtures and instruments from a PC, and in industrial gateways that consolidate several field serial links onto a single USB host connection. Choosing one four-channel device over four single-channel bridges saves cost, board area and USB hub logic. The -40C to 85C range allows the same part in benchtop tools and in cabinet-mounted industrial equipment.