DP8228J中文资料System Controller and Bus Driver数据手册TI规格书

描述 Description

General Description
The DP8228/DP8228M, DP8238/DP8238M are system controller/bus drivers contained in a standard, 28-pin dual in-line package. The chip, which is fabricated using Schottky Bipolar technology, generates all the read and write control signals required to directly interface the memory and input/output components of the 8080A microcomputer family. The chip also provides drive and isolation for the bidirectional data bus of the 8080A microprocessor. Data bus isolation enables the use of slower memory and input/output components in a system, and provides for enhanced system noise immunity.

特性 Features

Single chip system controller and bus driver for 8080A Microcomputer Systems
Allows use of multibyte CALL instructions for Interrupt Acknowledge
Provides user-selected single-level interrupt vector(RST 7)
Provides isolation of data bus
Supports a wide variety of system bus structures
Reduces system component count
DP8238/DP8238M provides advanced Input/Output Write and Memory Write control signals for large system timing control