Datasheet

Copyright © 2009 Future Technology Devices International Limited 18
Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.02
Clearance No.: FTDI# 38
Parameter Description Minimum Typical Maximum Units Conditions
Voh Output Voltage High 2.1 2.6 2.8 V I source = 1mA
Vol Output Voltage Low 0.3 0.4 0.5 V I sink = 2mA
Vin
Input Switching
Threshold
1.0 1.2 1.5 V **
VHys
Input Switching
Hysteresis
20 25 30 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 Output Voltage High 1.32 1.62 1.8 V I source = 0.2mA
Vol Output Voltage Low 0.06 0.1 0.18 V I sink = 0.5mA
Vin
Input Switching
Threshold
1.0 1.2 1.5 V **
VHys
Input Switching
Hysteresis
20 25 30 mV **
Table 5.6 UART and CBUS I/O Pin Characteristics (VCCIO = +1.8V, Standard Drive Level)
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 5.7 UART and CBUS I/O Pin Characteristics (VCCIO = +5.0V, High Drive Level)
Parameter Description Minimum Typical Maximum Units Conditions
Voh Output Voltage High 2.2 2.8 3.2 V I source = 3mA
Vol Output Voltage Low 0.3 0.4 0.6 V I sink = 8mA
Vin
Input Switching
Threshold
1.0 1.2 1.5 V **
VHys
Input Switching
Hysteresis
20 25 30 mV **
Table 5.8 UART and CBUS I/O Pin Characteristics (VCCIO = +3.3V, High Drive Level)