DS3875W-MPR

Overview

The DS3875W-MPR is a bus arbiter and continuous signal generator manufactured by National Semiconductor. It operates at frequencies up to 40MHz and is housed in a CQFP68 package. The device functions as an element bit per element output component, designed for high-speed arbitration tasks within complex digital systems.

Feature Summary

• Functions as a dedicated bus arbiter for managing resource access
• Generates continuous signals for system synchronization
• Supports high-frequency operation up to 40MHz

Applications

• Futurebus+ arbitration controller implementations
• High-speed digital bus management systems
• Continuous signal generation for peripheral interfaces

Procurement Notes

Verify the specific suffix MPR indicates the tape-and-reel packaging variant when sourcing. Confirm the manufacturer origin is National Semiconductor or its successor entity Texas Instruments. Ensure the component matches the CQFP68 physical footprint requirements for your PCB design before finalizing procurement orders.

Selection Notes

Select this component when a dedicated hardware solution for bus arbitration is required rather than software-based control. The 40MHz operational speed makes it suitable for demanding data throughput applications. Consider the CQFP68 package constraints during layout planning to ensure adequate thermal dissipation and pin accessibility.

Part Context

This part belongs to the National Semiconductor logic IC family focused on bus interface and arbitration controllers. It serves as a specialized integrated circuit for managing concurrent access requests in multi-master bus architectures, distinct from standard buffer or driver components.

Replacement Considerations

Consult official datasheets for direct cross-reference equivalents. Verify pin compatibility and electrical specifications before substituting with other Futurebus+ compatible arbiters from different manufacturers.