QS74FCT191ATS1

Counter Dividers Overview

The QS74FCT191ATS1 is a binary counter integrated circuit manufactured by Quality Semiconductor. It belongs to the FCT series and features a single 4-bit counting element with positive-edge triggering. The device supports both up and down counting directions and operates within a supply voltage range of 4.75 V to 5.25 V, with a nominal rating of 5 V. It is housed in a surface-mount package and is designed for industrial temperature applications.

Counter Dividers Feature Summary

• Supports synchronous bidirectional counting operations
• Features positive-edge triggered clocking mechanism
• Designed for high-speed digital logic applications

Counter Dividers Applications

• Digital frequency division circuits
• Event counting systems
• Timing control logic modules

Counter Dividers Procurement Notes

Verify the specific suffix 'S1' against official Quality Semiconductor documentation to confirm pinout and electrical characteristics, as suffixes often denote package variations or testing conditions. Ensure compatibility with existing board layouts and thermal requirements before procurement.

Counter Dividers Selection Notes

Select this component when a synchronous 4-bit counter with bidirectional capability is required in the FCT logic family. Consider the industrial temperature range and surface-mount packaging constraints during design integration to ensure reliable operation under specified environmental conditions.

Counter Dividers Part Context

This part is part of the 74FCT series, which combines the speed of bipolar logic with CMOS low power consumption. The 191 designation typically indicates a 4-bit synchronous counter. Quality Semiconductor produces this variant for industrial-grade applications requiring robust performance in digital timing and counting tasks.

Counter Dividers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.