I/O bits: 24
Configuration: One 82C55 chip
**82C55 Specifications**
I/O bits: 24 divided into two 8-bit and two 4-bit ports. Each port can be set as input or output.
Logic family: CMOS
Compatible Accessory Boards:
Solid-state relays: SSR-RACK series
Electromechanical relays: CIO-ERB series
Software Description:
Includes InstaCal ® , installation and test software. Supported by Universal Library ® . Also supported by most third party, high-level data acquisition programs.
Cables / Screw Terminal Boards:
C37FF-# / CIO-MINI37
This cable/terminal board system provides connections to all digital I/O plus the computer power supplies.