74F163ASJX

Overview

The Fairchild Semiconductor 74F163ASJX is a high-speed synchronous modulo-16 binary counter in the 74F series. It features synchronous preset capability, two count enable inputs, and a terminal count output for versatile multi-stage configurations. The device utilizes positive edge triggering and includes a synchronous reset input that overrides counting and parallel loading on the clock rising edge. It operates within a 4.5 V to 5.5 V supply range and supports typical count frequencies of 120 MHz.

Feature Summary

• Synchronous presettable binary counting with positive edge triggering
• Synchronous reset input overriding counting and parallel loading operations
• High-speed synchronous expansion capabilities via dedicated enable inputs

Applications

• Programmable frequency dividers
• Synchronous multi-stage counter formations
• Digital timing sequence generation

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package integrity and pin alignment against the 16-SOP specification. Review datasheet revisions for any functional updates. Ensure storage conditions comply with moisture sensitivity level requirements to prevent internal damage prior to soldering.

Selection Notes

Select this component when synchronous reset behavior is required rather than asynchronous clearing. The 74F series offers higher speed performance compared to standard logic families. Verify voltage compatibility with the 4.5 V to 5.5 V operating range. Consider thermal management for applications approaching the 120 MHz typical count frequency limit.

Part Context

This part belongs to the 74F163A family of synchronous binary counters. It shares functional similarities with the 74F161A but differs in its reset mechanism, utilizing synchronous reset instead of asynchronous master reset. The suffix indicates specific packaging and handling characteristics defined by Fairchild Semiconductor standards.