Copyright 2011 Future Technology Devices International Limited
15
Document No.: FT_000329
FT232BL
/BQ USB UART IC Datasheet Version 2.2
Clearance No.: FTDI#
171
5.2 DC Characteristics
DC Characteristics (Ambient Temperature = 0C to 70C)
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
VCC1
VCC Operating Supply
Voltage
4.35
5
5.25
V
VCC2
VCCIO Operating Supply
Voltage
3.0
---
5.25
V
Icc1
Operating Supply
Current
---
25
---
mA
Normal Operation
Icc2
Operating Supply
Current
---
180
200
μA
USB Suspend
**Note 3
Table 5.2 Operating Voltage and Current
**Note 3 – Supply current excludes the 200uA nominal drawn by the external pull-up resistor on
USBDP.
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
**Note 4
Vhys
Input Switching
Hysteresis
50
55
60
mV
Table 5.3 UART IO Pin Characteristics (VCCIO = +5.0V)
**Note 4 – Inputs have an internal 200K pull-up resistor to VCCIO.
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
**Note 4
Vhys
Input Switching
Hysteresis
20
25
30
mV
Table 5.4 UART IO Pin Characteristics (VCCIO = +3.0 to +3.6V)
**Note 4 – Inputs or IO pin in input mode have an internal 200K pull-up resistor to VCCIO.