54S197J/B

Overview

The 54S197J/B is a high-speed binary counter manufactured by Rochester Electronics. It features two independent 4-bit counters with parallel load capability and a dedicated clock input for each section. The device supports synchronous parallel data loading, allowing data to be loaded into the flip-flops on the active clock edge. It includes an output enable control to manage data flow. The component is designed for military temperature ranges and utilizes a ceramic dual in-line package.

Feature Summary

• Dual independent 4-bit binary counting sections
• Synchronous parallel load functionality
• Dedicated clock inputs per counter section
• Output enable control for bus interfacing

Applications

• Military-grade digital timing systems
• Space-level data processing units
• High-reliability industrial control counters
• Aerospace telemetry signal generation

Procurement Notes

Verify the specific revision level and lot traceability documentation upon order confirmation. Ensure that the requested unit matches the exact suffix designation required for your assembly process. Confirm compliance with relevant quality certifications such as AS9120 or MIL-PRF-38535 if applicable to your program requirements before finalizing procurement.

Selection Notes

Select this component when dual independent 4-bit counting is required within a single package. It is suitable for applications demanding high-speed operation and robust environmental tolerance. Consider the parallel load feature for efficient state initialization. Verify that the package style meets the mechanical constraints of the target design.

Part Context

This part belongs to the SN54S197 family of high-speed logic devices. It is produced by Rochester Electronics, which specializes in sourcing and manufacturing legacy semiconductors. The company ensures that recreated components meet original equipment manufacturer specifications using approved processes and testing protocols.

Replacement Considerations

Direct substitutes include other SN54S197 variants from authorized distributors. Verify pin compatibility and electrical characteristics before substitution. Cross-reference with original manufacturer datasheets to ensure functional equivalence in critical military or aerospace applications.