FT232H - High Speed Single Channel USB to serial UART

Operating at USB Hi-Speed 480Mbps rate, the FT232H fast single channel bridge chip features either a flexible serial interface or parallel FIFO interface, with data transfer speeds up to 40Mbytes/s.

Operating at USB Hi-Speed 480Mbps rate, the FTDI FT232H is fast single channel bridge chip which features either a flexible serial interface or parallel FIFO interface, with data transfer speeds up to 40Mbytes/s.

The versatile FT232H USB to UART/FIFO interface device can be configured via EEPROM to use a variety of different serial or parallel interfaces. Bundled with FTDI's well established and proven USB device drivers, this solution enables engineers to easily add Hi-Speed USB connectivity into new and legacy peripheral designs with a minimum of design and support effort.

Key Features:

  • Single channel USB to serial / parallel ports with a variety of configurations.
  • Entire USB protocol handled on the chip. No USB specific firmware programming required.
  • USB 2.0 Hi-Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible.
  • Multi-Protocol Synchronous Serial Engine (MPSSE) to simplify synchronous serial protocol (USB to JTAG, I2C, SPI or bit-bang) design.
  • FTDI's royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
  • Low operating and USB suspend current.
  • +1.8V (chip core) and +3.3V I/O interfacing (+5V Tolerant).
  • Extended -40°C to 85°C industrial operating temperature range.
  • Compact 48-pin Lead Free LQFP or QFN package
  • Configurable ACBUS I/O pins.

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  • Single channel USB to serial / parallel ports with a variety of configurations.
  • Entire USB protocol handled on the chip. No USB specific firmware programming required.
  • USB 2.0 Hi-Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible.
  • Multi-Protocol Synchronous Serial Engine (MPSSE) to simplify synchronous serial protocol (USB to JTAG, I2C, SPI or bit-bang) design.
  • UART transfer data rate up to 12Mbaud. (RS232 Data Rate limited by external level shifter).
  • USB to asynchronous 245 FIFO mode for transfer data rate up to 8 MByte/Sec.
  • USB to synchronous 245 parallel FIFO mode for transfers up to 40 Mbytes/Sec
  • Supports a half duplex FT1248 interface with a configurable width, bi-directional data bus (1, 2, 4 or 8 bits wide).
  • CPU-style FIFO interface mode simplifies CPU interface design.
  • Fast serial interface option.
  • FTDI's royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
  • Adjustable receive buffer timeout.
  • Option for transmit and receive LED drive signals.
  • Bit-bang Mode interface option with RD# and WR strobes
  • Highly integrated design includes 5V to 3.3/+1.8V LDO regulator for VCORE, integrated POR function
  • Asynchronous serial UART interface option with full hardware handshaking and modem interface signals.
  • Fully assisted hardware or X-On / X-Off software handshaking.
  • UART Interface supports 7/8 bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity.
  • Auto-transmit enable control for RS485 serial applications using TXDEN pin.
  • Operation configuration mode and USB Description strings configurable in external EEPROM over the USB interface.
  • Configurable I/O drives strength (4, 8, 12 or 16mA) and slew rate.
  • Low operating and USB suspend current.
  • Supports self powered, bus powered and high-power bus powered USB configurations.
  • UHCI/OHCI/EHCI host controller compatible.#
  • USB Bulk data transfer mode (512 byte packets in Hi-Speed mode).
  • +1.8V (chip core) and +3.3V I/O interfacing (+5V Tolerant).
  • Extended -40°C to 85°C industrial operating temperature range.
  • Compact 48-pin Lead Free LQFP or QFN package
  • Single chip USB to UART (RS232, RS422 or RS485)
  • USB to FIFO
  • USB to FT1248
  • USB to JTAG
  • USB to SPI
  • USB to I2C
  • USB to Bit-Bang
  • USB to Fast Serial Optic Interface
  • USB to CPU target interface (as memory)
  • USB Instrumentation
  • USB Industrial Control
  • USB EPOS Control
  • USB MP3 Player Interface
  • USB FLASH Card Reader / Writers
  • Set Top Box PC - USB interface
  • USB Digital Camera Interface
  • USB Bar Code Readers
Part  Number Package Pack Size
FT232HL-REEL 48-pin LQFP Reel of 1500
FT232HL-TRAY 48-pin LQFP Tray of 250
FT232HQ-REEL 48-pin QFN Reel of 3000
FT232HQ-TRAY 48-pin QFN Tray of 260
UM232H 2 x 14-pin Headers Each


UM232H-200pxVersatile Range of Evaluation Kits
The UM232H evaluation kit for FT232H represents an quick and easy introduction to understanding USB. In most cases you you can be up and running in less than 30 minutes.

Volume pricing is also available which is flexible enough to allow you to embed a module within your design for minimal time-to-market turnaround.

Custom PID service
For volume applications Alpha Micro can provide a Product Identifier (PID) under the FTDI "umbrella scheme" that can be used to personalise a design based on the FT232 so that your end user will see your product and brand name in the Windows Install Wizard for extra brand awareness.

There is an added benefit that the driver is tagged to your hardware and cannot be used by other devices. This feature can only be used with FTDI chips, the Vendor ID (VID) must remain untouched. Customers should use MPROG to program this feature and any other changes to the default settings within the EEPROM (which must be fitted if this feature is required). MPROG is free to use and performs the programming tasks over the USB.

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Last updated: 22 August 2013