IP82C37A-5

Specialized Overview

The IP82C37A-5 is a CMOS high-performance programmable DMA controller manufactured by Harris Corporation. It features four independent channels and supports a maximum clock frequency of 5 MHz. The device utilizes a CDIP40 package, providing compatibility with various microprocessor architectures including the Intel 8086/88 and Zilog Z80 families. Designed for direct memory access operations, it manages data transfers without continuous CPU intervention.

Specialized Feature Summary

• Four independent DMA channels for concurrent data transfer management
• CMOS technology ensuring low power consumption and high noise immunity
• Programmable control logic allowing flexible configuration for diverse system requirements

Specialized Applications

• Data acquisition systems requiring high-speed memory buffering
• Industrial automation controllers managing peripheral I/O transfers
• Legacy computing systems utilizing 8-bit or 16-bit microprocessors

Specialized Procurement Notes

Verify manufacturer origin carefully as Harris Corporation assets were acquired by Renesas Electronics. Confirm package integrity for ceramic DIP variants. Check for RoHS compliance status as original Harris production predates modern environmental directives. Ensure pinout compatibility with target socket designs before integration.

Specialized Selection Notes

Select this component when four dedicated DMA channels are required for legacy bus architectures. Compare against the MD82C37A-5 variant to confirm package type differences between UUC40 and CDIP40. Evaluate system clock constraints to ensure operation within the specified 5 MHz limit. Consider availability from secondary market distributors due to discontinued manufacturing status.

Specialized Part Context

This part belongs to the 82C37 family of DMA controllers originally developed by Harris Semiconductor. The series was widely adopted in early PC architectures and industrial control systems. Harris Corporation's semiconductor division was later acquired, leading to brand transitions through Intersil to Renesas Electronics. The IP prefix typically denotes military or extended temperature grade specifications in some contexts, though official documentation should be consulted for precise grading details.

Specialized Replacement Considerations

The MD82C37A-5B serves as a primary functional equivalent with identical electrical characteristics. Verify package compatibility as the MD82C37A-5 may utilize different housing types. Cross-reference datasheets to confirm pinout alignment for direct socket replacement.