VL82C37A Datasheet PDF - VLSI CMOS DIRECT MEMORY ACCESS CONTROLLER Specs

VL82C37A - CMOS DIRECT MEMORY ACCESS CONTROLLER

Datasheet Summary

Description

The VL82C37A Direct Memory Access (DMA) Controller serves as a peripheral interface circuit for microprocessor systems, and is designed to improve system performance by allowing external devices to directly transfer information from the system memory.

Features

Low-power CMOS version of popular 8237A DMA controller.
Four DMA channels.
Individual enable/disable control of DMA requests.
Directly expandable to any number of channels.
Independent auto-initialize feature for all channels.
High performance 8 MHz version available.
Transfers may be terminated by endof-process input.
Software controlled DMA requests.
Independent polarity control for DREO and DACK signals.

Datasheet Details

Part number	VL82C37A
Manufacturer	VLSI
File Size	803.32 KB
Description	CMOS DIRECT MEMORY ACCESS CONTROLLER
Datasheet	VL82C37A Datasheet
Additional preview pages of the VL82C37A datasheet.

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Full PDF Text Transcription

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e VLSI TECHNOLOGY, INC. VL82C37A CMOS DIRECT MEMORY ACCESS (DMA) CONTROLLER FEATURES • Low-power CMOS version of popular 8237A DMA controller • Four DMA channels • Individual enable/disable control of DMA requests • Directly expandable to any number of channels • Independent auto-initialize feature for all channels • High performance 8 MHz version available • Transfers may be terminated by endof-process input • Software controlled DMA requests • Independent polarity control for DREO and DACK signals DESCRIPTION The VL82C37A Direct Memory Access (DMA) Controller serves as a peripheral interface circuit for microprocessor systems, and is designed to improve system performance by allowing external devices to directly transfer information from the system memory.

Published: Jan 14, 2025 |