MM54C192J/883

Counter Dividers Overview

The MM54C192J/883 is a synchronous, bidirectional BCD (Binary-Coded Decimal) decade counter manufactured by National Semiconductor. It features a 4-bit architecture housed in an 8-pin ceramic dual in-line package (DIP). The device operates with a nominal supply voltage of ±15 V and supports a wide temperature range from -55 °C to 125 °C. It includes load and preset inputs for direct data entry and utilizes positive edge triggering for clock synchronization.

Counter Dividers Feature Summary

• Synchronous bidirectional counting capability allowing up or down operations via control inputs
• Direct parallel load and preset functionality for immediate data initialization
• Positive edge-triggered clock operation ensuring precise timing synchronization
• Ceramic DIP packaging designed for high-reliability military and aerospace environments

Counter Dividers Applications

• Military-grade digital counting systems requiring radiation hardness and thermal stability
• Aerospace telemetry data processing units utilizing synchronous logic
• High-reliability industrial control counters operating in extreme temperature conditions
• Avionics subsystems requiring certified CMOS decade counter components

Counter Dividers Procurement Notes

Verify the specific suffix 'J/883' confirms the MIL-STD-883 compliant ceramic package variant. Ensure procurement sources provide traceability documentation for the National Semiconductor origin. Confirm RoHS status as non-compliant due to the legacy military specification requirements. Validate that the component matches the 16-CDIP physical footprint if cross-referencing with pinout diagrams.

Counter Dividers Selection Notes

Select this component when a synchronous, bidirectional BCD counter is required for high-reliability applications. The ceramic package offers superior environmental resistance compared to plastic variants. Consider the ±15 V supply requirement and ensure power management circuits support this range. Verify compatibility with existing TTL/CMOS logic levels in the target system design.

Counter Dividers Part Context

This part belongs to the MM54C series of CMOS logic devices produced by National Semiconductor, now part of Texas Instruments. The MM54C series is distinguished by its military-grade specifications, including extended temperature ranges and hermetic sealing. It complements other MM54C logic families such as flip-flops and gates within the same ecosystem.

Counter Dividers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with MM54C192J-883C only if verified as electrically identical by official manufacturer documentation.