Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.07
Clearance No.: FTDI#78
Devices International Ltd
FT4232H Quad High Speed
USB to Multipurpose
The FT4232H is FTDI’s 5th generation
of USB devices. The FT4232H is a USB
2.0 High Speed (480Mb/s) to
UART/MPSSE ICs. The device features
4 UARTs. Two of these have an option
to independently configure an MPSSE
engine. This allows the FT4232H to
operate as two UART/Bit-Bang ports
plus two MPSSE engines used to
emulate JTAG, SPI, I2C, Bit-bang or
other synchronous serial modes. The
FT4232H has the following advanced
Single chip USB to quad serial ports with a
variety of configurations.
Entire USB protocol handled on the chip. No
USB specific firmware programming required.
USB 2.0 High Speed (480Mbits/Second) and Full
Speed (12Mbits/Second) compatible.
Two Multi-Protocol Synchronous Serial Engine
(MPSSE) on channel A and channel B, to
simplify synchronous serial protocol (USB to
JTAG, I2C, SPI or bit-bang) design.
Independent Baud rate generators.
RS232/RS422/RS485 UART Transfer Data Rate
up to 12Mbaud. (RS232 Data Rate limited by
external level shifter).
FTDI’s royalty-free Virtual Com Port (VCP) and
Direct (D2XX) drivers eliminate the requirement
for USB driver development in most cases.
Optional traffic TX/RX indicators can be added
with LEDs and an external 74HC595 shift
Adjustable receive buffer timeout.
Support for USB suspend and resume conditions
via PWREN#, SUSPEND# and RI# pins.
Highly integrated design includes +1.8V LDO
regulator for VCORE, integrated POR function
and on chip clock multiplier PLL (12MHz –
FTDI FT232B style, asynchronous serial UART
interface option with full hardware handshaking
and modem interface signals.
Fully assisted hardware or X-On / X-Off software
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.
Operational configuration mode and USB
Description strings configurable in external
EEPROM over the USB interface.
Low operating and USB suspend current.
Configurable I/O drive strength (4,8,12 or 16mA)
and slew rate.
Supports bus powered, self powered and high-
power bus powered USB configurations.
UHCI/OHCI/EHCI host controller compatible.
USB Bulk data transfer mode (512 byte packets
in High Speed mode).
Dedicated Windows DLLs available for USB to
JTAG, USB to SPI, and USB to I2C applications.
+1.8V (chip core) and +3.3V I/O interfacing (+5V
Extended -40°C to 85°C industrial operating
Compact 64-LD Lead Free LQFP or QFN
+3.3V single supply operating voltage range.
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or
electronic form without the prior written consent of the copyright holder. This product and its documentation are supplied on an as-is basis and no warranty
as to their suitability for any particular purpose is either made or implied. Future Technology Devices International Ltd will not accept any claim for damages
howsoever arising as a result of use or failure of this product. Your statutory rights are not affected. This product or any variant of it is not intended for use
in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in personal injury. This document
provides preliminary information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH
United Kingdom. Scotland Registered Company Number: SC136640
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