Part Number
|
UPB8238 |
Manufacturer
|
NEC |
Description
|
8080A SYSTEM CONTROLLER AND BUS DRIVER |
Published
|
Feb 25, 2017 |
Detailed Description
|
NEe Microcomputers, Inc.
fttIEC
Jl,PB8228 J.I PB8238
8080A SYSTEM CONTROLLER AND BUS DRIVER
OESCR IPTION
The pPB8228...
|
Datasheet
|
UPB8238
|
Overview
NEe Microcomputers, Inc.
fttIEC
Jl,PB8228 J.
I PB8238
8080A SYSTEM CONTROLLER AND BUS DRIVER
OESCR IPTION
The pPB8228/8238 is a single chip cOntroller and bus driver for 8080A based systems.
All the required interface signals rrecessary to connect RAM, ROM and I/O components to a pPD8080A are generated.
The pPB8228/8238 provides a bi·directional three·state bus driver for high TTL fan-out and isolation of the processor data bus from the system data bus for increased noise immunity.
The system controller portion of the pPB8228/8238 consists of a status latch for definition of processor machine cycles and a gating array to decode this information for direct interface to system components.
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