Intel 8237

The Intel 8237 is a programmable DMA controller module, which is a further development of the 8257. It is mainly used in systems with processors Intel 8086/8088 and its successors. The module is supplied in a 40 pin DIL package. He was licensed to, inter alia, the NEC. It has been used for the first computer (IBM PC, and the IBM PC XT). In the IBM PC AT two copies are used and connected in a cascaded form.

Literature and data sheets

  • Andreas Stiller: PC devices. Direct access to the memory, c't, 1988, Issue 9, pp. 178-189.
  • Intel datasheet: 8237A High Performance Programmable DMA Controller ( 8237A -5).
  • NEC Electronics (Europe) GmbH, 1982 Catalog, pp. 607-617 ( μPD8237A High Performance Programmable DMA Controller).
IBM Personal Computer IBM Personal Computer XT
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