Cmos High Performance Programmable Dma Controller Corporation

The 82C237 is a modied 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 devices to transfer data directly to or from system memory. Memory-to-memory transfer capability is also provided, along with a memory block initialization fea- ture. DMA requests may be generated by either hardware or software, and each channel is independently programmable with a variety of features for exible operation. The 82C237 is designed to be used with an external address latch, such as the 82C82 to demultiplex the most signicant 8 bits of address. An additional latch is required to temporarily store the most signicant 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 reconguration under program control is possible even with the Clock to the controller stopped. Each channel has a full 64K address and word count range, and may be programmed to autoinitialize these Registers following DMA termination (end of process). By Intersil Corporation
82C237 's Packages82C237 's pdf datasheet
CP82C237
CP82C237-12
IP82C237
IP82C237-12
CS82C237
CS82C237-12
IS82C237
IS82C237-12
CD82C237
CD82C237-12
ID82C237
ID82C237-12
MD82C237-B
MD82C237-12-B
5962-9054304MQA
5962-9054305MQA
MR82C237-B
MR82C237-12-B
5962-9054304MXA
5962-9054305MXA




82C237 Pinout, Pinouts
82C237 pinout,Pin out
This is one package pinout of 82C237,If you need more pinouts please download 82C237's pdf datasheet.

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82C237 Application Notes 82C237 RoHS 82C237 Circuits 82C237 footprint