JM54AC521SSA-RH

Comparators Overview

The JM54AC521SSA-RH is an 8-bit identity comparator from the 54AC series manufactured by National Semiconductor. It features active low outputs indicating equality between two 8-bit inputs. The device operates within a military-grade temperature range of -55°C to 125°C and utilizes a 20-pin CFP package.

Comparators Feature Summary

• Provides active low output signals when input data words are identical
• Supports high-speed digital logic operations with AC series performance characteristics
• Designed for reliable operation in extreme environmental conditions

Comparators Applications

• Microprocessor address matching circuits
• Digital system error detection modules
• Data validation logic in industrial control systems

Comparators Procurement Notes

Verify the specific suffix 'SSA-RH' against official National Semiconductor documentation to confirm package type and environmental rating. Ensure compatibility with existing 54AC series logic families. Confirm that the 20-CFP package matches your board layout requirements before procurement.

Comparators Selection Notes

Select this component when an 8-bit identity comparison function is required for military or high-reliability applications. The 54AC series offers faster switching speeds compared to standard 54LS counterparts. Verify voltage supply requirements and thermal management needs for the specified operating temperature range.

Comparators Part Context

This part belongs to the 54AC family of high-speed CMOS logic devices originally developed by National Semiconductor. The 54-series designation indicates military-grade qualification, ensuring performance across wider temperature ranges than commercial variants. The AC series provides improved speed-power product over earlier LS technologies.

Comparators Replacement Considerations

JM54AC521SRA-RH is a documented alternative variant within the same manufacturer line. Verify pinout compatibility and package dimensions before substitution. Cross-reference datasheets to ensure functional equivalence in identity comparison operations.