Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.07
Clearance No.: FTDI# 38
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Vol
Output Voltage High
Output Voltage Low
2.1
0.3
2.6
0.4
2.8
0.5
V
V
I source = 1mA
I sink = 2mA
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.5 UART and CBUS I/O Pin Characteristics (VCCIO = +2.8V, Standard Drive Level)
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Vol
Output Voltage High
Output Voltage Low
1.32
0.06
1.62
0.1
1.8
V
V
I source = 0.2mA
I sink = 0.5mA
0.18
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.6 UART and CBUS I/O Pin Characteristics (VCCIO = +1.8V, Standard Drive Level)
Parameter
Voh
Description
Minimum
3.2
Typical
4.1
Maximum
4.9
Units
Conditions
I source = 6mA
I sink = 6mA
V
V
Output Voltage High
Output Voltage Low
Vol
0.3
0.4
0.6
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.7 UART and CBUS I/O Pin Characteristics (VCCIO = +5.0V, High Drive Level)
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Vol
Output Voltage High
Output Voltage Low
2.2
0.3
2.8
0.4
3.2
0.6
V
V
I source = 3mA
I sink = 8mA
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.8 UART and CBUS I/O Pin Characteristics (VCCIO = +3.3V, High Drive Level)
Copyright © 2010 Future Technology Devices International Limited
19
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
