研瑞科技

Main Features

96 TTL digital I/O lines
Emulates mode 0 of 8255 PPI
Buffered circuits for higher driving capacity than 8255
Multiple-source interrupt handling
Output status read-back
“Pattern match” and “Change of state” interrupt functions for critical I/O monitoring
Keeps I/O setting and digital output values when hot system reset
Supports dry contact and wet contact
50-pin box header

产品介绍

PCM-3753I is a 96-bit digital I/O card for the PC-104 Plus bus. The card emulates mode 0 of the 8255 PPI chip, but the buffered circuits offer a higher driving capability than the 8255. The 96 I/O lines are divided into twelve 8-bit I/O ports: A0, B0, C0, A1, B1, C1, A2, B2, C2, A3, B3 and C3. You can configure each port as input or output via software.