FT232R USB UART IC Datasheet
Document No.: FT_000053 Clearance No.: FTDI# 38
Future Technology Devices
FT232R USB UART IC
The FT232R is a USB to serial UART
interface with the following advanced
Single chip USB to asynchronous serial data
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
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 /
FIFO receives and transmits buffers for high
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
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
Available in compact Pb-free 28 Pin SSOP and
QFN-32 packages (both RoHS compliant).
N either the whole nor any part of the information c ontained in, or the produc t des c ribed in this manual, may be adapted or re produc ed
in any material or elec tronic form without the prior written c ons ent of the c opyright holder. T his produc t and its doc umentation are
s upplied on an as - is bas is and no warranty as to their s uitability for any partic ular purpose is either made or implied. Future T e chnology
D evic es I nternational L td will not ac c ept any c laim for damages hows oever aris ing as a res ult of us e or failure of this produ c t. Y our
s tatutory rights are not affec ted. T his product or any variant of it is not intended for us e in any medic al appli anc e, devic e or s ys tem in
whic h the failure of the produc t might reas onably be expec ted to res ult in pers onal injury. T his doc ument provides preliminar y
information that may be s ubjec t to c hange without notice. N o freedom to us e patents or other intellectu al property rights is implied by
the public ation of this doc ument. Future T ec hnology D evic es I nternational L td, Unit 1, 2 Seaward Place, Centurion Business Park , Glasgow
G41 1HH U nited Kingdom. Sc otland Regis tered C ompany N umber: SC 1 3 6 6 4 0
Copyright © 2015 Future Technology Devices International Limited