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
Name
Type
Colour
Description
Number
TIP
TXD
RXD
GND
GND
Input
Black
Brown
Red
Transmit Asynchronous Data output.
Receive Asynchronous Data input.
GND
RING
SLEEVE
Output
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
Must be less that 2.5mA
during suspend.
IO
Output Power Current
-
75
mA
Operating Temperature
Range
T
-40
+85
oC
Table 5.2 TTL-232R-5V-AJ I/O Operating Parameters
Parameter Description
Minimum
3.2
Typical
4.1
Maximum
4.9
Units
V
Conditions
I source = 6mA
I sink = 6mA
Voh
Vol
Output Voltage High
Output Voltage Low
0.3
0.4
0.6
V
Vin
Input Switching Threshold
Input Switching Hysteresis
1.0
1.2
1.5
V
VHys
20
25
30
mV
Table 5.3 TTL-232R-5V-AJ I/O Pin Characteristics
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14
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