PCM-IO48 8255 Compatible PC/104 I/O Module provides 48 GPIO

DATA SHEET

No longer in production

This product is listed to provide access to its documentation.

The PCM-IO48 is a low cost, general purpose, PC/104 compatible 48-line parallel I/O controller based upon two 82C55A integrated circuits. The I/O lines are organized as two groups of three, 8-bit I/O ports. It is wired to two, 50-pin connectors which each will interface directly to industry standard 4, 8, 16 and 24-I/O module solid state relay mounting racks (Opto-22, etc.).

SPECIFICATIONS DOCUMENTATION SOFTWARE Mechanical Drawings

Features
Digital I/O	48 Bidirectional General Purpose I/O (GPIO) Uses two 82C55A compatible devices Each device is independent and supports 24 I/O TTL Compatible Compatible with industry standard I/O racks
Bus Interface	PC/104, 8-bit
Power	+5V required, 20 mA typical (configured for inputs only)
Mechanical	PC/104-compliant Dimensions: 3.6 x 3.8 inches (90 x 96 mm) Weight: 2.8 oz (78g)
Operating Temperature Range	-40°C to 85°C

8255 Compatible PC/104 I/O Module provides 48 GPIO

Features

48 Bidirectional General Purpose I/O (GPIO)
Uses two 82C55A compatible devices
- Each device is independent and supports 24 I/O
Compatible with industry standard I/O racks
Dual 50-pin header connectors
Single +5V operation
Industrial -40° to +85°C operational temperature