74F163ASJ

Overview

The Fairchild Semiconductor 74F163ASJ is a high-speed synchronous 4-bit binary counter belonging to the 74F logic family. It features positive edge triggering and an up-counting direction with synchronous preset capability. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a typical count frequency of 120 MHz. It is housed in a 16-SOP surface-mount package and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Synchronous counting and loading mechanism for precise timing control
• High-speed synchronous expansion capabilities for cascading applications
• Positive edge-triggered operation ensuring stable state transitions

Applications

• Programmable counters requiring synchronous preset functionality
• Digital timing systems utilizing high-speed clock frequencies
• Cascaded multi-stage binary counting circuits

Procurement Notes

Verify component authenticity as this part number may be obsolete or discontinued. Confirm that the 16-SOP package dimensions match your PCB footprint requirements. Ensure the operating environment remains within the specified commercial temperature limits. Validate that the 4.5 V to 5.5 V supply voltage aligns with your system design constraints before integration.

Selection Notes

Select this component when synchronous preset behavior is required rather than asynchronous reset. The 74F series offers higher speed performance compared to standard TTL counterparts. Consider the 16-SOP package for surface-mount assembly needs. Verify compatibility with existing 5V logic levels in the target circuit design.

Part Context

This component is part of the 74F163A series, which includes related variants such as the 74F161A. These devices share similar synchronous architectures but may differ in reset mechanisms. The 74F family is characterized by its fast propagation delays and high-frequency operation capabilities suitable for demanding digital logic applications.

Replacement Considerations

Public confirmed substitute part numbers include SN74F163AD and SN74F163ADR from Texas Instruments. These alternatives offer similar functional specifications and pinouts. Verify package compatibility and electrical characteristics before substitution.