QS54FCT373ATQ

Latches Overview

The QS54FCT373ATQ is an octal transparent latch manufactured by Quality Semiconductor, designed for high-speed bus applications. It features tri-state outputs and operates on a single 5V supply. The device utilizes advanced dual metal CMOS technology to achieve low power consumption and fast switching speeds. Key electrical parameters include a propagation delay of approximately 5.1 ns at 5V, with output drive capabilities of 32 mA in both high and low states. It functions as an address driver within digital logic systems.

Latches Feature Summary

• Octal transparent latch architecture with tri-state outputs for efficient bus interfacing
• Advanced dual metal CMOS technology ensuring low power dissipation and high speed
• Designed specifically for addressing and data storage in high-performance digital circuits

Latches Applications

• High-speed bus interface circuits
• Addressable latch channel ICs
• Digital data storage modules

Latches Procurement Notes

Verify the manufacturer designation carefully, as Quality Semiconductor assets have been acquired by other entities such as IDT or Renesas. Ensure the specific lot date code and packaging configuration match your production requirements. Confirm RoHS compliance status if required for your assembly process, as older stock may vary. Cross-reference the datasheet revision to ensure pinout compatibility with existing designs.

Latches Selection Notes

Select this component when an octal latch with tri-state control is required for 5V logic systems. It is suitable for applications demanding low propagation delay and moderate output drive current. Consider the package type availability, as industrial variants may differ from commercial ones. Evaluate power consumption needs against the CMOS technology benefits for battery-operated or heat-sensitive environments.

Latches Part Context

This part belongs to the FCT (Fast CMOS) logic family, which bridges the performance gap between standard TTL and high-speed CMOS technologies. The 373 series is widely recognized for its use in microprocessor-based systems for latching address and data lines. Quality Semiconductor produced this variant before industry consolidations, often sharing specifications with equivalent parts from IDT or Cypress.

Latches Replacement Considerations

Equivalent parts include the CY74FCT373ATQ from Texas Instruments and the QS74FCT373TS1B from Quality Semiconductor. Verify pin compatibility and electrical characteristics before substitution. Industrial temperature range variants like the QS54FCT373CTHB offer wider operating temperatures but may require different handling procedures.