INS8238 - National Semiconductor

INS8238 System Controller and Bus Driver

The INS8228/INS8238 is a system controller/bus driver 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 National Semiconductor's INS8080A microcomputer family. The chip .

Features

• MICROBUSlM
* Compatible
• Single Chip System' Controller and Bus Driver for 1NS8080A Microcomputer Systems
• Allows Use of Multibyte CALL Instructions for Interrupt Acknowledge
• Provides User-Selected Single-Level Interrupt Vector (RST7)
• Provides Isolation for Data Bus
• Supports a Wide Variety of System Bus Structures
• Reduces System Component Count
• INS8238 Provides Advanced Input/Output Write and Memory Write Control Signals for Large System Timing Control INS8080 Family CPU Group to MICROBUS Configuration INSBOSDA MICROPROC~SSijA ('. -C.MGDNAlNS TRO~L~ IWII,OB1N) IIlDA OJ-DO z .