MM54C905J/B

Overview

The MM54C905J/B is a high-reliability integrated circuit manufactured by Rochester Electronics, LLC. It functions as a 12-bit Successive Approximation Register (SAR), serving as the core logic component within a voltage regulator control system. The device is classified under the Logic category and is designed for military-grade performance standards. As part of Rochester’s authorized lifecycle management portfolio, this component provides extended availability for legacy systems requiring robust data conversion and control logic capabilities.

Feature Summary

• Implements 12-bit successive approximation register architecture for precise analog-to-digital conversion logic
• Designed for integration into linear voltage regulator control loops to manage power output regulation
• Constructed to meet rigorous military-grade reliability and environmental specifications

Applications

• Military-grade voltage regulator controller systems
• High-reliability industrial power supply regulation circuits
• Legacy aerospace electronic control units requiring SAR logic

Procurement Notes

Verify that the specific suffix J/B corresponds to the required package and temperature grade for your application. Confirm that the component is sourced through authorized channels to ensure authenticity. Check for any date code restrictions or lot traceability requirements mandated by your quality assurance protocols before finalizing procurement.

Selection Notes

Select this component when a 12-bit SAR interface is required for regulator feedback loops in harsh environments. Ensure compatibility with existing control logic voltage levels. Consider the physical package constraints and thermal management needs associated with military-grade packaging options during the design phase.

Part Context

Rochester Electronics specializes in extending the lifecycle of obsolete semiconductors. This part belongs to their authorized distribution network, providing access to components no longer actively produced by original manufacturers. The MM54C905 series represents a lineage of high-performance logic devices used in critical infrastructure and defense applications.

Replacement Considerations

Direct cross-reference requires matching the 12-bit SAR functionality and military qualification. Verify pinout compatibility if substituting with other 54C905 variants. Consult official substitution lists for equivalent packages.