描述 Description

GENERAL? DESCRIPTION
The MSM82C55A-2 is a programmable universal I/O interface device which operates as high speed and on low power consumption due to 3m silicon gate CMOS technology.? It is the best fit as an I/O port in a system which employs the 8-bit parallel processing MSM80C85AH CPU. This device has 24-bit I/O pins equivalent to three 8-bit I/O ports and all inputs/outputs are TTL interface compatible.
FEATURES
? High speed and low power consumption due to 3m silicon gate CMOS technology
? 3 V to 6 V single power supply
? Full static operation
? Programmable 24-bit I/O ports
? Bidirectional bus operation (Port A)
? Bit set/reset function (Port C)
? TTL compatible
? Compatible with 8255A-5
? 40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM82C55A-2RS)
? 44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM82C55A-2VJS)
? 44-pin Plastic QFP (QFP44-P-910-0.80-2K): (Product name: MSM82C55A-2GS-2K)

特性 Features

? High speed and low power consumption due to 3m silicon gate CMOS technology
? 3 V to 6 V single power supply
? Full static operation
? Programmable 24-bit I/O ports
? Bidirectional bus operation (Port A)
? Bit set/reset function (Port C)
? TTL compatible
? Compatible with 8255A-5
? 40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM82C55A-2RS)
? 44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM82C55A-2VJS)
? 44-pin Plastic QFP (QFP44-P-910-0.80-2K): (Product name: MSM82C55A-2GS-2K)