Document Reference No.: FT_000054
TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.02
Clearance No.: FTDI# 53
6.3.1 TTL-232R-5V-WE Electrical Parameters
Parameter Description
Minimum
Typical
Maximum
Units
V
Conditions
Dependant on the USB port
that the TTL-232R-5V-WE is
connected to
VCC
Output Power Voltage
4.25
5.0
5.25
Must be less that 2.5mA
during suspend.
IO
T
Output Power Current
-
75
mA
oC
Operating Temperature
Range
-40
+85
Table 6.2 TTL-232R-5V-WE 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 6.3 TTL-232R-5V-WE I/O Pin Characteristics
6.3.2 TTL-232R-3V3-WE Electrical Parameters
Parameter Description
Minimum
Typical
Maximum
Units
V
Conditions
Dependant on the USB port
that the TTL-232R-3V3-WE
is connected to
VCC
Output Power Voltage
4.25
5.0
5.25
Must be less that 2.5mA
during suspend.
IO
T
Output Power Current
-
75
mA
oC
Operating Temperature
Range
-40
+85
Table 6.4 TTL-232R-3V3-WE I/O Operating Parameters
Parameter Description
Minimum
2.2
Typical
2.8
Maximum
3.2
Units
V
Conditions
I source = 3mA
I sink = 8mA
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 6.5 TTL-232R-3V3-WE I/O Pin Characteristics
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17
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