74173PCQR

Flip Flops Overview

The Fairchild Semiconductor 74173PCQR is a quad positive-edge-triggered J-K flip-flop implemented in TTL technology. It features four independent D-type flip-flops with clear inputs, packaged in a 16-pin PDIP format. The device operates at a nominal supply voltage of 5 V and supports commercial temperature ranges from 0 °C to 70 °C. Key electrical characteristics include a standard TTL logic family interface, ensuring compatibility with existing digital systems while providing reliable data storage capabilities.

Flip Flops Feature Summary

• Provides four independent positive-edge-triggered J-K flip-flops for sequential logic applications
• Integrates active-low clear inputs for immediate state reset across all channels
• Utilizes standard TTL logic levels for broad system compatibility
• Housed in a durable plastic dual in-line package suitable for through-hole mounting

Flip Flops Applications

• Data storage modules requiring parallel input retention
• Sequential circuit design involving state machine implementation
• Digital signal processing systems utilizing clock-driven memory elements
• Industrial control logic interfacing with standard TTL components

Flip Flops Procurement Notes

Verify the specific suffix 'PCQR' against manufacturer documentation to confirm package type and reel specifications. Ensure compliance with RoHS directives if lead-free variants are required, as standard versions may contain lead. Confirm moisture sensitivity level ratings prior to surface mount reflow processes, even for DIP packages, to prevent internal damage during assembly. Cross-reference pinout diagrams with target PCB layouts to ensure correct orientation and connectivity.

Flip Flops Selection Notes

Select this component when designing circuits necessitating multiple synchronized storage elements within a single integrated circuit. The TTL technology ensures robust noise immunity in standard digital environments. Consider the PDIP package constraints regarding board space and thermal dissipation compared to surface-mount alternatives. Evaluate power consumption requirements against the standard TTL profile to ensure adequate supply headroom for the entire system load.

Flip Flops Part Context

This part belongs to the widely adopted 74xx series of logic integrated circuits, specifically focusing on sequential logic functions. The 74173 designation identifies it as a quad J-K flip-flop variant, distinct from D-type or counter configurations within the same family. Fairchild Semiconductor's manufacturing history contributes to its recognition in legacy and modern industrial electronics, maintaining compatibility with established design standards.

Flip Flops Replacement Considerations

Equivalent parts include SN74173 from Texas Instruments and DM74173 from ON Semiconductor. Verify pin compatibility and electrical specifications before substitution. Alternative packages such as SOIC or PLCC may require adapter solutions or layout modifications.