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FT232R USB UART IC Datasheet
Version 2.14
Document No.: FT_000053 Clearance No.: FTDI# 38
Future Technology Devices
International Ltd.
FT232R USB UART IC
Datasheet
The FT232R is a USB to serial UART interface
with the following advanced features:

FIFO receives and transmits buffers for high
data throughput.

Single chip USB to asynchronous serial data
transfer interface.

Synchronous and asynchronous bit bang
interface options with RD# and WR# strobes.

Entire USB protocol handled on the chip. No
USB specific firmware programming required.

Device supplied pre-programmed with unique
USB serial number.

Fully integrated 1024 bit EEPROM storing
device descriptors and CBUS I/O configuration.

Supports bus powered, self-powered and highpower bus powered USB configurations.

Fully integrated USB termination resistors.

Integrated +3.3V level converter for USB I/O.

Fully integrated clock generation with no
external crystal required plus optional clock
output selection enabling a glue-less interface
to external MCU or FPGA.

Integrated level converter on UART and CBUS
for interfacing to between +1.8V and +5V
logic.


Data transfer rates from 300 baud to 3 Mbaud
(RS422, RS485, RS232) at TTL levels.
True 5V/3.3V/2.8V/1.8V CMOS drive output
and TTL input.

Configurable I/O pin output drive strength.

128 byte receive buffer and 256 byte transmit
buffer utilising buffer smoothing technology to
allow for high data throughput.

Integrated power-on-reset circuit.

Fully integrated AVCC supply filtering - no
external filtering required.

UART signal inversion option.

+3.3V (using external oscillator) to +5.25V
(internal oscillator) Single Supply Operation.

Low operating and USB suspend current.

Low USB bandwidth consumption.

UHCI/OHCI/EHCI host controller compatible.

USB 2.0 Full Speed compatible.

-40°C to 85°C extended operating temperature
range.

Available in compact Pb-free 28 Pin SSOP and
QFN-32 packages (both RoHS compliant).

FTDI’s royalty-free Virtual Com Port (VCP) and
Direct
(D2XX)
drivers
eliminate
the
requirement for USB driver development in
most cases.

Unique USB FTDIChip-ID™ feature.

Configurable CBUS I/O pins.

Transmit and receive LED drive signals.

UART interface support for 7 or 8 data bits, 1
or 2 stop bits and odd / even / mark / space /
no parity
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