Datasheet

Copyright © 2010 Future Technology Devices International Limited 14
Document Reference No.: FT_000054
TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.02
Clearance No.: FTDI# 53
5.2 TTL-232R-5V-AJ and TTL-232R-3V3-AJ Cable Signal Descriptions
Header Pin
Number
Name
Type
Colour
Description
TIP
TXD
GND
Black
Transmit Asynchronous Data output.
RING
RXD
Input
Brown
Receive Asynchronous Data input.
SLEEVE
GND
Output
Red
GND
Table 5.1 TTL-232R-5V-AJ and TTL-232R-3V3-AJ Cable Signal Descriptions
5.3 TTL-232R-5V-AJ and TTL-232R-3V3-AJ Electrical Parameters
5.3.1 TTL-232R-5V-AJ Electrical Parameters
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
I
O
Output Power Current
-
75
mA
Must be less that 2.5mA
during suspend.
T
Operating Temperature
Range
-40
+85
o
C
Table 5.2 TTL-232R-5V-AJ I/O Operating Parameters
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Output Voltage High
3.2
4.1
4.9
V
I source = 6mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 6mA
Vin
Input Switching Threshold
1.0
1.2
1.5
V
VHys
Input Switching Hysteresis
20
25
30
mV
Table 5.3 TTL-232R-5V-AJ I/O Pin Characteristics