74F163ASC

Overview

The Fairchild Semiconductor 74F163ASC is a high-speed synchronous modulo-16 binary counter belonging to the F/FAST logic series. It features a 4-bit parallel output structure with true output polarity, designed for TTL applications. The device operates on a single supply voltage of 5 V and supports positive edge-triggered counting in an upward direction. It utilizes a ceramic dual in-line package (CDIP) with 24 terminals, suitable for commercial temperature ranges up to 70 °C.

Feature Summary

• Synchronous presettable architecture enabling programmable division applications
• High-speed synchronous expansion capabilities via dedicated enable inputs
• Terminal count output facilitates versatile multi-stage counter configurations

Applications

• Programmable frequency dividers
• Synchronous multi-stage counter systems
• High-speed digital timing circuits

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm package material and pin configuration. Ensure compatibility with existing TTL logic levels and power supply requirements. Confirm lead-free status if environmental compliance is mandatory for the target assembly process.

Selection Notes

Select this component when high-speed synchronous operation is required over standard LS logic families. The F/FAST series offers superior speed characteristics while maintaining TTL compatibility. Consider the ceramic DIP package for robustness in environments requiring higher thermal stability compared to plastic variants.

Part Context

This part belongs to the 74F163A family of synchronous presettable binary counters. It shares functional similarities with the 74LS163 but provides significantly faster switching speeds due to the F/FAST technology. The device is distinct from asynchronous reset variants by its synchronous clear mechanism.