ADLINK cPCI-7300 - Manual (Page 11)

Introduction
• 3
1.3 Specifications
♦
Digital I/O (DIO)
•
Numbers of Channel: 32 TTL compatible inputs and/or outputs
•
Device: IDT 74FCT373
•
I/O Configurations:
16 DI & 16 DO
32 DI
32 DO
♦
Input Voltage:
•
Low: Min. 0V; Max. 0.8V
•
High: Min. +2.0V
♦
Input Load:
•
Terminator OFF:
Low: +0.5V @
±
20 mA
High: +2.7V @
±
1 mA max.
•
Terminator ON:
Termination resistor: 110 Ohms
Termination voltage: 2.9V
Low: +0.5V @
±
22.4mA
High: +2.7V @
±
1mA max.
♦
Output Voltage:
•
Low: Min. 0V; Max. 0.5V
•
High: Min. +2.7V
♦
Driving Capacity:
•
Low: Max. +0.5V at 48mA (Sink)
•
High: Min. 2.4V at -8 mA (Source)
♦
Hysteresis: 500mV
♦
Transfer Characteristic