IS82C37A-5

Specialized Overview

The IS82C37A-5 is a CMOS Direct Memory Access (DMA) controller manufactured by Renesas Electronics Corporation. It provides four independent DMA channels and supports operation at clock frequencies up to 5 MHz. The device features a CDIP40 package and is designed for high-performance data transfer applications in microprocessor systems.

Specialized Feature Summary

• Four independent DMA channels for flexible system configuration
• CMOS technology ensuring low power consumption
• Supports standard DMA request and acknowledge signals

Specialized Applications

• High-speed data transfer between memory and I/O devices
• Microprocessor-based system architecture integration
• Industrial control systems requiring reliable DMA operations

Specialized Procurement Notes

Verify the manufacturer source, as this component has been produced by multiple entities including Harris and Intersil. Confirm the specific package type and revision level against your design requirements. Ensure compatibility with existing system voltage levels and timing constraints before procurement.

Specialized Selection Notes

Select this component when a four-channel DMA controller is required for legacy or specific industrial microprocessor architectures. Verify that the 5 MHz maximum operating frequency meets the system bus speed requirements. Consider the CDIP40 package availability if through-hole mounting is necessary for the application.

Specialized Part Context

This part belongs to the 82C37 family of DMA controllers, which are CMOS versions of earlier NMOS designs. It is functionally compatible with industry-standard DMA interfaces, allowing it to serve as a drop-in replacement for older components in systems designed around the 8237 architecture.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers include MD82C37A-5/B and ISL82C37A-5. These variants offer functional equivalence but may differ in manufacturing origin or minor packaging details. Verify pinout compatibility before substitution.