Intel 8257

The Intel 8257 is a direct memory access (DMA) controller, a part of the MCS 85 microprocessor family. The chip is supplied in 40-pin DIP package.

• Intel 8237 - DMA Controller

• Intel: 8257/8257-5 Programmable DMA Controller (PDF; 2,2 MB).
• NEC Electronics (Europe) GmbH, 1982 Catalog, p. 665–674 (μPD8257; μPD8257C-5).
• NEC Electronics Inc."μPD8257" (PDF). Retrieved 2024-01-04.