54196FM

Overview

The SN54196FM is a high-reliability synchronous decade counter manufactured by Rochester Electronics. Designed for military and aerospace applications, this component operates within an extended temperature range of -55°C to +125°C. It features independent clock inputs for up/down counting operations and includes asynchronous clear functionality. The device utilizes hermetic ceramic packaging to ensure durability in harsh environments, providing stable logic performance for critical digital systems requiring long-term operational integrity.

Feature Summary

• Synchronous decade counting architecture with dedicated up and down clock inputs
• Asynchronous master reset capability for immediate state initialization
• Hermetic ceramic flatpack construction ensuring environmental resilience
• Extended military-grade temperature operation range

Applications

• Military avionics control systems
• Aerospace telemetry data processing
• High-reliability industrial instrumentation
• Defense communication equipment counters

Procurement Notes

Verify the specific suffix FM indicates the ceramic flatpack package variant. Confirm the manufacturer designation as Rochester Electronics, which typically signifies a lifecycle extension or surplus source rather than original fabrication. Ensure compliance with relevant military specifications if required for your system integration. Request full traceability documentation upon order confirmation.

Selection Notes

Select this component when hermetic sealing and wide temperature tolerance are mandatory. Compare against standard plastic variants if environmental exposure is minimal. Verify pin compatibility with existing PCB layouts due to the specific flatpack footprint. Consider availability constraints associated with specialized military-grade inventory channels.

Part Context

Rochester Electronics specializes in sustaining production for obsolete and hard-to-find integrated circuits. This part belongs to the SN54 series, denoting military-grade quality standards. The company provides lifecycle management solutions for legacy components, ensuring supply continuity for defense and industrial sectors that cannot transition to newer alternatives.

Replacement Considerations

Direct substitutes include other SN54196 variants from different manufacturers offering identical pinouts and electrical characteristics. Verify package dimensions carefully as ceramic flatpacks differ significantly from plastic DIP or SOIC formats. Cross-reference timing parameters to ensure compatibility with existing clock signals.