5962-9054302MQA

Overview

The Harris Corporation 5962-9054302MQA is a CMOS High Performance Programmable DMA Controller, functionally equivalent to the industry-standard 82C37A. Fabricated using an advanced 2-micron CMOS process, it provides four independent maskable channels with autoinitialization capability and supports cascading for expanded channel counts. The device enables high-speed data transfers up to 4 MBytes/sec at an 8 MHz clock or 6.25 MBytes/sec at a 12.5 MHz clock. It features memory-to-memory transfer capabilities, fully static design for low power operation (ICCSB ≤ 10µA, ICCOP ≤ 2mA/MHz), and full TTL/CMOS compatibility.

Feature Summary

• Four independent maskable channels with autoinitialization
• Memory-to-memory transfer capability
• Fully static CMOS design for low power consumption
• Compatible with NMOS 8237A pinout

Applications

• Direct Memory Access control in microcomputer systems
• High-speed peripheral data transfer interfaces
• Legacy system upgrades requiring CMOS performance

Procurement Notes

Verify the specific suffix MQA against official Harris or Intersil documentation to confirm package type and temperature range. Ensure the source document explicitly identifies this part number as the 82C37A-compatible DMA controller. Cross-reference manufacturer datasheets to validate electrical specifications before integration.

Selection Notes

Select this component when replacing NMOS 8237A designs with a CMOS alternative that offers reduced power consumption and higher speed. Verify that the system requires four independent DMA channels and supports the necessary clock frequencies of 8 MHz or 12.5 MHz for optimal performance.

Part Context

This part belongs to the Harris 82C37A series of programmable DMA controllers. It serves as a CMOS-enhanced version of the standard 8237A, offering improved performance and lower power while maintaining pin compatibility with older NMOS implementations used in various industrial and computing applications.

Replacement Considerations

Publicly confirmed substitute part numbers include 5962-9054303MXA.