5962-9088801MRA

Overview

The Harris Corporation 5962-9088801MRA is a military-grade CMOS high-performance programmable Direct Memory Access (DMA) controller. It serves as an enhanced version of the industry-standard 8237A, fabricated using advanced CMOS processes to offer increased functionality and reduced power consumption. The device features four independent maskable channels with autoinitialization capability and supports cascading for expanded channel counts. It enables high-speed data transfers up to 4 MBytes/sec at an 8 MHz clock frequency. The fully static design allows for gated clock operation, ensuring low power states while maintaining full TTL/CMOS compatibility for seamless integration into legacy and modern digital systems.

Feature Summary

• Four independent maskable DMA channels with autoinitialization support
• Cascadable architecture allowing expansion to any number of channels
• Fully static CMOS design enabling gated clock operation for power reduction
• Internal registers accessible via software for flexible configuration

Applications

• High-speed data transfer between memory and I/O devices in embedded systems
• Memory-to-memory data movement operations
• Industrial control systems requiring reliable DMA management
• Military and aerospace electronic subsystems

Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers due to its military specification status. Confirm lot traceability and compliance with relevant defense standards. Check for obsolescence notices or lifecycle changes from the manufacturer. Ensure proper handling procedures are followed during procurement and storage to maintain device integrity.

Selection Notes

Select this component when a robust, pin-compatible replacement for NMOS 8237A designs is required. Consider its CMOS advantages for lower power consumption and higher speed compared to older NMOS variants. Evaluate system timing requirements against the supported clock frequencies. Verify that the package type matches the target PCB layout constraints.

Part Context

This part belongs to the family of enhanced CMOS DMA controllers derived from the classic 8237A architecture. It represents a transition from NMOS to CMOS technology within the same functional footprint. The 5962 prefix indicates it is a military-grade component manufactured under specific quality assurance standards. It is designed to provide backward compatibility while offering improved performance metrics.

Replacement Considerations

Direct pin-compatible replacements include other CMOS versions of the 8237A such as the Intersil ISL8237A or Harris HARRIS 82C37A series components. Verify electrical characteristics and operating temperature ranges match the original design specifications before substitution.