UM83C002 - RAM Buffer Controller

Unicorn Microelectronics

UM83C002 Datasheet Preview — Preview of UM83C002 PDF

Datasheet Details

Part number	UM83C002
Manufacturer	Unicorn Microelectronics
File Size	663.36 KB
Description	RAM Buffer Controller
Datasheet	UM83C002-UnicornMicroelectronics.pdf

UM83C002 Product details

Description

The RAM B U F F E R C O N T R O LLE R contains three high-speed DMA channels: a host computer address port, dynamic RAM refresh circuitry, and RAM access priority logic.

Features

3 DMA channels.
Host processor port.
Refresh circuit for dynamic RAM built-in.
RAM access priority network.
Address multiplexing for dynamic RAM.
Multiplexed address and data lines from processor.
Pins arranged for easy integration into 8088/8086 systems.
No lost RAM cycles for DMA break-in.
DMA carry output permits DMA across 64K boun daries.
24 bit timer or baud rate generator.
T T L compatible inputs and outputs. Outputs drive 8 L S T.

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Published: Jan 4, 2025 |