Copyright © 2010 Future Technology Devices International Limited

10

Document Reference No.: FT_000054

Clearance No.: FTDI# 53

4 TTL-232R-5V and TTL-232R-3V3 Cables

The TTL-232R-5V and TTL-232R-3V3 cables are both terminated by a 6 way, 0.1”, Single-In-Line (SIL)

connector. The difference between the two cables is that the TTL-232R-5V operates at +5V levels (signals

and power supply) and the TTL-232R-3V3 operates at +3.3V levels (signals only, VCC= +5V).

GND

CTS#

VCC

TXD

RXD

RTS#

1

2

3

4

5

6

CABLE 1.8m

VCC

1

2

3

4

5

6

6 pin header

0.1in pitch

BLACK

BROWN

RED

ORANGE

YELLOW

GREEN

Figure 4.1 TTL-232R-5V and TTL-232R-3V3, 6 Way Header Pin Out

The mechanical details of the 6 way connector are shown in the following diagram

A

B

C

D

Pin 1

E

Dimensions (mm)

2.54 +/- 0.05

A

12.70 +/- 0.2

B

C

14.0 +/- 0.2

D

2.54 +/- 0.05

E

15.24 +/- 0.2

Figure 4.2 TTL-232R-5V TTL-232R-3V3, 6 Way Header Mechanical Details

Header Pin

Number

Name

Type

Colour

Description

1

GND

GND

Black

Device ground supply pin.

2

CTS#

Input

Brown

Clear to Send Control input / Handshake signal.

3

VCC

Output

Red

+5V output,