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MD82C89/B from INTERSIL

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MD82C89/B

Manufacturer: INTERSIL, INTEL

CMOS Bus Arbiter

Partnumber Manufacturer Quantity Availability
MD82C89/B,MD82C89B INTERSIL, INTEL 300 In Stock

Description and Introduction

CMOS Bus Arbiter **Enhance System Performance with the MD82C89/B Bus Arbiter**  

In modern computing and embedded systems, efficient bus arbitration is crucial for maintaining optimal performance and preventing data conflicts. The MD82C89/B is a high-performance bus arbiter designed to manage access to shared system resources, ensuring smooth and reliable operation in multi-master environments.  

Engineered for versatility, the MD82C89/B supports multiple bus masters, allowing seamless coordination between processors, DMA controllers, and other high-speed peripherals. Its advanced arbitration logic minimizes latency, enabling faster data transfers and improved system responsiveness. The device operates with both synchronous and asynchronous bus protocols, making it adaptable to a wide range of applications, from industrial control systems to telecommunications infrastructure.  

Key features of the MD82C89/B include priority-based arbitration, ensuring critical tasks receive immediate access to the bus, while lower-priority operations are handled efficiently. The integrated daisy-chain capability simplifies system design, reducing the need for additional logic components. Built with robust CMOS technology, the device delivers low power consumption without compromising speed or reliability.  

For developers seeking a dependable solution for complex bus management, the MD82C89/B offers a proven architecture that enhances system stability and performance. Its compatibility with industry-standard interfaces ensures easy integration into existing designs, while its high-speed operation meets the demands of today’s data-intensive applications.  

Whether used in real-time control systems, multiprocessor configurations, or high-availability computing environments, the MD82C89/B provides the precision and efficiency required for seamless bus arbitration. Its reliability and performance make it an essential component for engineers focused on optimizing system throughput and minimizing contention in shared-resource architectures.  

By incorporating the MD82C89/B into system designs, developers can achieve greater operational efficiency, ensuring smooth communication between multiple bus masters while maintaining system integrity.

Application Scenarios & Design Considerations

CMOS Bus Arbiter

Alternative Part Number

  • 82C89 --: Same 82C89 bus arbiter function from the same manufacturer, differing only in the military/quality grade suffix, so it is a direct functional drop-in.
  • IS82C89 --: Intersil's standard commercial ordering code for the 82C89 bus arbiter, electrically equivalent to the MD82C89/B with a different prefix and grade.
  • CS82C89 --: Harris (original CMOS 82C89 designer, now part of Intersil/Renesas) equivalent bus arbiter in a different package/grade code, suitable as a second-source alternative.
  • 8289A --: Original NMOS bus arbiter that the 82C89 was derived from; functionally compatible with equivalent pinout and timing.
  • 82C89-8 --: Speed-graded variant of the same CMOS bus arbiter, usable as a drop-in replacement where timing margin allows.

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