Datasheet

Copyright © 2009 Future Technology Devices International Limited 17
Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.02
Clearance No.: FTDI# 38
5.2 DC Characteristics
DC Characteristics (Ambient Temperature = -40°C to +85°C)
Parameter Description Minimum Typical Maximum Units Conditions
VCC1
VCC Operating Supply
Voltage
4.0 --- 5.25 V
Using Internal
Oscillator
VCC1
VCC Operating Supply
Voltage
3.3 --- 5.25 V
Using External
Crystal
VCC2
VCCIO Operating
Supply Voltage
1.8 --- 5.25 V
Icc1
Operating Supply
Current
--- 15 --- mA Normal Operation
Icc2
Operating Supply
Current
50 70 100 µA USB Suspend
3V3 3.3v regulator output 3.0 3.3 3.6 V
Table 5.2 Operating Voltage and Current
Parameter Description Minimum Typical Maximum Units Conditions
Voh Output Voltage High 3.2 4.1 4.9 V I source = 2mA
Vol Output Voltage Low 0.3 0.4 0.6 V I sink = 2mA
Vin
Input Switching
Threshold
1.0 1.2 1.5
V **
VHys
Input Switching
Hysteresis
20 25 30
mV **
Table 5.3 UART and CBUS I/O Pin Characteristics (VCCIO = +5.0V, Standard Drive Level)
Parameter Description Minimum Typical Maximum Units Conditions
Voh Output Voltage High 2.2 2.7 3.2 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 5.4 UART and CBUS I/O Pin Characteristics (VCCIO = +3.3V, Standard Drive Level)