5962-9054301MQA

Overview

The Harris Corporation 5962-9054301MQA is a CMOS High Performance Programmable DMA Controller, functionally equivalent to the industry-standard 82C37A. Fabricated using an advanced 2-micron CMOS process, it offers pin compatibility with NMOS designs while providing increased functionality and reduced power consumption. The device supports four independent maskable channels with autoinitialization capability and can be cascaded for expanded systems. It 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. Key features include memory-to-memory transfer support, fully static design for low power operation (ICCsb = 10µA max), and full TTL/CMOS compatibility.

Feature Summary

• Four independent maskable channels with autoinitialization capability
• Supports high-speed data transfers up to 6.25 MBytes/sec
• Enables memory-to-memory transfers
• Fully static CMOS design permits gated clock operation

Applications

• High-performance direct memory access control in computer systems
• Data transfer management between memory and I/O devices
• Memory-to-memory data copying operations

Procurement Notes

Verify the specific suffix MQA against official Harris or Intersil documentation to confirm package type and temperature range. Ensure the component matches the required 82C37A functional specification. Cross-reference datasheets from authorized distributors to confirm availability and authenticity of this military-grade part number.

Selection Notes

Select this component when a CMOS-compatible replacement for the NMOS 8237A is required. It is suitable for applications demanding lower power consumption and higher speed than standard NMOS controllers. Consider the 8 MHz or 12.5 MHz clock requirements for throughput needs. Verify that the system architecture supports the four-channel cascade configuration.

Part Context

This part belongs to the Harris CMOS microcontroller family, specifically the enhanced 82C37A series. It serves as a direct upgrade path for legacy NMOS 8237A designs, offering improved performance without requiring PCB layout changes due to pin compatibility. The 5962 prefix indicates it is a military-grade component manufactured under DoD specifications.

Replacement Considerations

The 82C37A is the primary functional reference. Other Harris or Intersil parts sharing the 82C37A designation may serve as substitutes if electrical characteristics and packaging align.