Datasheet4U Logo Datasheet4U.com

CD82C237 - CMOS High Performance Programmable DMA Controller

General Description

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.

Key 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CD82C37A CMOS High Performance Programmable DMA Controller Harris Corporation
CD82C55A CMOS Programmable Peripheral Interface Harris Corporation
CD8200CZ 13W x 2 Dual Audio Power Amp HUAJING
CD821 TC Zener Diode MA-COM
CD821 MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS Compensated Deuices Incorporated

Other Datasheets by Intersil (now Renesas)

Part Number Description
CD82C37A CMOS High Performance Programmable DMA Controller
CD82C52 CMOS Serial Controller Interface
CD82C54 CMOS Programmable Interval Timer
CD82C55A CMOS Programmable Peripheral Interface
CD82C59A CMOS Priority Interrupt Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
82C237 March 1997 CMOS High Performance Programmable DMA Controller Description 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 devices to transfer data directly to or from system memory. Memory-to-memory transfer capability is also provided, along with a memory block initialization feature. DMA requests may be generated by either hardware or software, and each channel is independently programmable with a variety of features for flexible operation.