Copyright © Future Technology Devices International Limited

1

FT232R USB UART IC Datasheet

Version 2.16

Document No.: FT_000053 Clearance No.: FTDI# 38

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in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are

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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

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G41 1HH United Kingdom. Scotland Registered Company Number: SC136640

Future Technology Devices

FT232R USB UART IC

Datasheet

The FT232R is a USB to serial UART interface

with the following advanced features:



Single chip USB to asynchronous serial data

transfer interface.



Entire USB protocol handled on the chip. No

USB specific firmware programming required.



Fully integrated 1024 bit EEPROM storing

device descriptors and CBUS I/O configuration.



Fully integrated USB termination resistors.



Fully integrated clock generation with no

external crystal required plus optional clock

output selection enabling a glue-less interface

to external MCU or FPGA.



Data transfer rates from 300 baud to 3 Mbaud

(RS422, RS485, RS232) at TTL levels.



128 byte receive buffer and 256 byte transmit

buffer utilising buffer smoothing technology to

allow for high data throughput.



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



FIFO receives and transmits buffers for high

data throughput.



Synchronous

and

asynchronous

bit

bang

interface options with RD# and WR# strobes.



Device supplied pre-programmed with unique

USB serial number.



Supports bus powered, self-powered and high-

power bus powered USB configurations.



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



Integrated level converter on UART and CBUS

for interfacing to between +1.8V and +5V

logic.



True 5V/3.3V/2.8V/1.8V CMOS drive output

and TTL input.



Configurable I/O pin output drive strength.



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).