DP8228 Datasheet - National

DP8228 System Controller and Bus Driver

The DP8228 DP8228M DP8238 DP8238M are system controller bus drivers contained in a standard 28-pin dualin-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.

DP8228 Features

* Y Y Y Y Y Y Y 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 structur

DP8228_National.pdf