QS74FCT2191TS1

Counter Dividers Overview

The QS74FCT2191TS1 is a binary counter integrated circuit belonging to the FCT series manufactured by Quality Semiconductor. It utilizes CMOS technology and operates with a nominal supply voltage of 5 V. The device is housed in a TSOP-16 package, suitable for surface-mount applications. As a counter IC, it functions as an Element Bit component within digital logic systems.

Counter Dividers Feature Summary

• Implements binary counting functionality within the FCT logic family
• Utilizes CMOS technology for low power consumption
• Designed for surface-mount integration via TSOP-16 packaging

Counter Dividers Applications

• Digital binary counting circuits
• Frequency division stages
• Event counting modules

Counter Dividers Procurement Notes

Verify the manufacturer designation as Quality Semiconductor or its successor entities such as Integrated Device Technology (IDT) or Renesas, due to industry acquisitions. Confirm the specific suffix 'TS1' corresponds to the required TSOP-16 package variant. Ensure RoHS compliance status aligns with project requirements, as historical data indicates potential non-compliance for older batches. Cross-reference datasheet revisions to confirm pinout compatibility.

Counter Dividers Selection Notes

Select this component when a synchronous binary counter is required in high-speed CMOS logic designs. The FCT series offers compatibility with standard TTL levels while maintaining CMOS input characteristics. Consider the TSOP-16 package constraints for PCB layout density. Verify that the operating temperature range meets the environmental specifications of the target application before finalizing the design.

Counter Dividers Part Context

This part belongs to the FCT (Fast CMOS Technology) series, which bridges the performance gap between standard CMOS and LSTTL logic families. Quality Semiconductor was a prominent manufacturer in this domain before being acquired by IDT. The QS prefix typically denotes commercial grade industrial variants within their cataloging system.

Counter Dividers Replacement Considerations

Check for equivalents from IDT or Renesas under the same 74FCT2191 designation. Verify pin-to-pin compatibility with other FCT series counters if alternative sourcing is necessary.