Document No.: FT_000052
FT245R USB FIFO IC Datasheet Version 2.10
Clearance No.: FTDI# 39
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 = 3mA
I sink = 8mA
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.9 FIFO I/O Pin Characteristics (VCCIO = +2.8V, High Drive Level)
Parameter
Description
Minimum
Typical
Maximum Units
Conditions
Voh
Vol
Output Voltage High
Output Voltage Low
1.35
0.12
1.67
0.18
1.80
0.35
V
V
I source = 0.4mA
I sink = 3mA
Input Switching
Threshold
Vin
1.0
20
1.2
25
1.5
30
V
**
**
Input Switching
Hysteresis
VHys
mV
Table 5.10 FIFO I/O Pin Characteristics (VCCIO = +1.8V, High Drive Level)
** Only input pins have an internal 200KΩ pull-up resistor to VCCIO
Parameter
Description
Minimum
Typical
Maximum Units
Conditions
Input Switching
Threshold
Vin
1.3
1.6
1.9
60
V
Input Switching
Hysteresis
VHys
50
55
mV
Table 5.11 RESET# and TEST Pin Characteristics
Parameter
Description
Minimum
Typical
Maximum Units
Conditions
RI = 1.5kΩ to
3V3OUT (D+) RI =
15KΩ to GND (D-)
I/O Pins Static Output
(High)
UVoh
2.8
3.6
0.3
V
V
RI = 1.5kΩ to
3V3OUT (D+) RI =
15kΩ to GND (D-)
I/O Pins Static Output
(Low)
UVol
0
Single Ended Rx
Threshold
UVse
0.8
0.8
0.2
2.0
2.5
V
V
V
Differential Common
Mode
UCom
UVDif
Differential Input
Sensitivity
6
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