74ACTQ373QSC

Latches Overview

The Fairchild Semiconductor 74ACTQ373QSC is an octal transparent latch featuring three-state outputs, designed for bus-oriented applications. It utilizes FACT Quiet Series technology to ensure quiet output switching and improved dynamic threshold performance. The device includes a buffered Latch Enable (LE) input and a common Output Enable (OE). Outputs are capable of sourcing and sinking 24 mA. The component operates within a temperature range of -40°C to 85°C and is housed in a 20-lead SSOP package.

Latches Feature Summary

• Utilizes FACT Quiet Series technology for guaranteed quiet output switching and superior dynamic threshold performance
• Features buffered positive edge-triggered clock and common output enable for bus-oriented applications
• Provides three-state outputs with 24 mA drive capability for interfacing with bus lines or memory address registers

Latches Applications

• Bus-oriented system data storage
• Memory address register buffering
• Interfacing with high-speed bus lines

Latches Procurement Notes

Verify the specific suffix QSC corresponds to the SSOP-20 package and lead-free status as documented in official Fairchild datasheets. Confirm RoHS compliance and operating temperature range (-40°C to 85°C) against the manufacturer's specification sheet prior to procurement. Ensure the part number matches the exact logic family and pinout configuration required for the design.

Latches Selection Notes

Select this component when low power consumption and reduced simultaneous switching noise are critical requirements. The ACTQ series offers faster propagation delays compared to standard AC/ACT counterparts. Verify that the 24 mA output drive current meets the load requirements of the connected bus lines. Ensure compatibility with the system's voltage levels and timing constraints.

Latches Part Context

This component belongs to the 74ACTQ logic family, which integrates FACT Quiet Series technology. It serves as an octal D-type latch variant within the broader 74-series logic ecosystem. The device is functionally similar to other octal latches but distinguishes itself through enhanced noise immunity and reduced ICC and IOZ values due to its specialized output control architecture.

Latches Replacement Considerations

Official substitutes include 74ACTQ373SC and 74ACTQ373SJ from Fairchild Semiconductor. These variants share identical functionality but differ in package type (SOIC or SOJ). Verify pinout compatibility and thermal characteristics before substitution.