User guide

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