MD82C237-12 CMOS High Performance Programmable DMA Controller Datasheet

MD82C237-12 CMOS High Performance Programmable DMA Controller

The 82C237 is a modiﬁed version of the 82C37A. The 82C237 is fully software and pin for pin compatible with the 82C37A but provides an additional mode for 16-bit DMA transfers, as well as enhanced speed. Each channel may be individually programmed for 8-bit or 16-bit data transfers. The 82C237 controller can improve system performance by allowing external de.

Features

for ﬂexible operation. The 82C237 is designed to be used with an external address latch, such as the 82C82, to demultiplex the most signiﬁcant 8 bits of address. An additional latch is required to temporarily store the most signiﬁcant 8 bits of data if 16-bit memory-to-memory transfers are desired. The 82C237 can be used with industry standard microprocessors such as 80C286, 80286, 80C86, 80C88, 8086, 8088, 8085, Z80, NSC800, 80186 and others. Multimode programmability allows the user to select from three basic types of DMA services, and reconﬁguration under program control is possible even wi.

No.	Partie #	Fabricant	Description
1	MD82C237-12B	Intersil	CMOS High Performance Programmable DMA Controller
2	MD82C237	Intersil	CMOS High Performance Programmable DMA Controller
3	MD82C237B	Intersil	CMOS High Performance Programmable DMA Controller
4	MD82C37A	Intersil	CMOS High Performance Programmable DMA Controller
5	MD82C37A-12	Intersil	CMOS High Performance Programmable DMA Controller
6	MD82C37A-12B	Intersil	CMOS High Performance Programmable DMA Controller
7	MD82C37A-5	Intersil	CMOS High Performance Programmable DMA Controller
8	MD82C37A-5B	Intersil	CMOS High Performance Programmable DMA Controller
9	MD82C37AB	Intersil	CMOS High Performance Programmable DMA Controller
10	MD82C50A-5	Intersil	CMOS Asynchronous Communications Element
11	MD82C50A-5B	Intersil	CMOS Asynchronous Communications Element
12	MD82C52	Intersil	CMOS Serial Controller Interface

MD82C237-12 - Intersil

MD82C237-12 CMOS High Performance Programmable DMA Controller

Features

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