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A.1
Digital Input/Output
Channels
Power-On State
A.2
Digital Input
Input Type
Input Logic Value
Input Protection
Voltage
Pull-Up Resistor
Acquisition Type
Interrupt
Response Time
A.3
Digital Output
Output Type
Power-On State
Output Logic Value
Load Current
Update Type
Response Time
USB-4751/4751L User Manual
USB-4751
48 (6 Ports)
USB-4751L
24 (3 Ports)
Input
5 V TTL
Logic High
2.0 V min.
Logic Low
0.8 V max.
Working Voltage
-0.25 V ~ 5.25 V
-0.5 V ~ 6.5 V
10 kΩ
Instant
Supported Channel
PC00 & PC10
PC04 gate for PC00
Gate
PC14 gate for PC10
Rising edge, falling edge, or both edges,
Edge Detection
software configurable per channel
Frequency
1 kHz max.
120 ns max.
5 V TTL
Logic low
Logic High
3.8 V min. @ 12 mA source/5.2 V max.
Logic Low
0.5 V max. @ 12 mA sink
Per Port Summed
20 mA max.
Static
120 ns max.
16
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