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UM8237A-5 - Programmable DMA Controller

Download the UM8237A-5 datasheet PDF. This datasheet also covers the UM8237A variant, as both devices belong to the same programmable dma controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The UM8237A Direct Memory Access Controller (DMAC) is a peripheral interface circuit for microprocessor systems.

It is designed to improve system performance by allowing external devices to directly transfer information from the system memory.

Memory-tb-memory' transfer capability is also provided.

Key Features

  • Enable/Disable control of individual DMA requests.
  • Four independent DMA channels.
  • Independent autoinitialization of all channels.
  • Memory-to-memory transfers.
  • Memory block initialization.
  • Single 5V power supply.
  • High performance: transfers up to 1.6M bytes/second with 5MHz 8237A-5.
  • Directly expandable to any number of channels.
  • End of process input for terminating transfers.
  • Software DMA requests.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UM8237A-UMC.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UM8237A-5
Manufacturer UMC
File Size 51.80 KB
Description Programmable DMA Controller
Datasheet download datasheet UM8237A-5 Datasheet

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Other Datasheets by UMC

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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
eUMC UM8237A/ 8237A-4/ 8237A-5 Programmable DMA Controller (DMAC) Features • Enable/Disable control of individual DMA requests • Four independent DMA channels • Independent autoinitialization of all channels • Memory-to-memory transfers • Memory block initialization • Single 5V power supply • High performance: transfers up to 1.6M bytes/second with 5MHz 8237A-5 • Directly expandable to any number of channels • End of process input for terminating transfers • Software DMA requests • Independent Polarity control for DREQ and DACK signals • Available in EXPRESS - Standard Temperature Range General Description The UM8237A Direct Memory Access Controller (DMAC) is a peripheral interface circuit for microprocessor systems.