Document No.: FT_000329
FT232BL/BQ USB UART IC Datasheet Version 2.2
Clearance No.: FTDI# 171
Parameter
Voh
Description
Minimum
4.0
Typical
Maximum
5.0
Units
Conditions
Fosch = 6MHZ
Fosch = 6MHZ
Output Voltage High
Output Voltage Low
-
-
V
V
Vol
0.1
1.0
Input Switching
Threshold
Vin
1.8
2.5
3.2
V
Table 5.5 XTIN / XTOUT Pin Characteristics
Parameter
Voh
Description
Minimum
3.2
Typical
4.1
Maximum
4.9
Units
Conditions
I source = 2mA
I sink = 2mA
Output Voltage High
Output Voltage Low
V
V
Vol
0.3
0.4
0.6
Input Switching
Threshold
Vin
1.3
50
1.6
55
1.9
60
V
Input Switching
Hysteresis
Vhys
mV
**Note 5
Table 5.6 RESET#, TEST, EECS, EESK, EEDATA Pin Characteristics
**Note 5 – EECS, EESK and EEDATA pins have an internal 200K pull-up resistor to VCC
Parameter
Voh
Description
Minimum
3.0
Typical
Maximum
3.6
Units
Conditions
I source = 2mA
I sink = 2mA
Output Voltage High
Output Voltage Low
-
-
V
V
Vol
0.3
0.6
Table 5.7 RSTOUT Pin Characteristics (VCCIO = +1.8V, Standard Drive Level)
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
RI = 1.5K to 3V3Out ( D+)
I = 15K to GND ( D-)
IO Pins Static Output (
High)
Uvoh
2.8
3.6
V
V
-
RI = 1.5K to 3V3Out ( D+)
I = 15K to GND ( D-)
IO Pins Static Output (
Low)
Uvol
0
0.3
-
Single Ended Rx
Threshold
Uvse
0.8
0.8
2.0
2.5
V
V
-
-
Differential Common
Mode
Ucom
Differential Input
Sensitivity
UVDif
UdrvZ
0.2
29
V
-
-
Driver Output Impedance
44
Ohms
**Note 6
Table 5.8 USB I/O Pin Characteristics
**Note 6 – Driver Output Impedance includes the external 27R series resistors on USBDP and USBDM
pins.
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