Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees

to defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting

from such use.

TTL-232R-RPi

Version 1.0

Document Reference No.: FT_000722

Clearance No.: FTDI# 296

Future Technology

Devices

International Ltd

Datasheet

TTL-232R-RPi Debug

Cable for Raspberry Pi

Datasheet

The TTL-232R-RPi cable provides USB to TTL Level UART solutions and

is customised for operation with the Raspberry Pi.

1

Introduction

TTL-232R-RPi is a USB to TTL level serial UART converter cables incorporating FTDI’s FT232RQ USB to

Serial UART interface IC device which handles all the USB signalling and protocols. The TTL-232R-RPi is

designed for use with the Raspberry Pi (RPi), an ultra-low cost, Linux based miniaturised computer. The

debug cable sits on the Rx/Tx of the RPi ARM processor UART – which provides much more detail of

what’s happening within the RPi operating system. Connecting the debug cable to a PC and

communicating with the RPi via a terminal emulator on a PC gives the user access to more detailed

information from the Linux kernel during RPi start-up, which appears on the Rx/TX lines of the UART, as

well as being able to login and access the kernel itself from the PC.

1.1

Features



TTL-232R-RPi Debug cable provides a USB to

TTL Serial interface for Raspberry Pi computer.



On board FT232RQ provides single chip USB to

asynchronous serial data transfer interface.



Entire USB protocol handled by the electronics

in the cable USB.



Connect directly to a microcontroller UART or

I/O pins.



UART interface support for 7 or 8 data bits, 1 or

2 stop bits and odd / even / mark / space / no

parity.



Fully assisted or X-On / X-Off software

handshaking.



Data transfer rates from 300 baud to 3 Mbaud

at TTL levels.



Internal EEPROM with user writeable area.



5V safe TTL inputs make the TTL-232R easy to

interface to 5V MCU’s.



FTDI’s royalty-free VCP allow for communication

as a standard emulated COM port and D2XX

‘direct’ drivers provide DLL application

programming interface.



Support for FT232R FTDIChip-ID™ feature for

improved security.



3x ‘flying leads’ outputs provide TXD, RXD and

GND signals.



Low USB bandwidth consumption.



UHCI / OHCI / EHCI host controller compatible.



USB 2.0 Full Speed compatible.



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



Cable length is 1.0m.



FCC and CE compliant.