QS74FCT4X2373ATQ3

Latches Overview

The QS74FCT4X2373ATQ3 is a logic latch component from the FCT series manufactured by Quality Semiconductor. It functions as a sequential logic circuit designed for bus-oriented applications. The device features tri-state outputs and transparent latch behavior, allowing data to pass through when enabled and latching data upon disable. This specific part number represents a variant within the broader 74FCT2373T family, which utilizes advanced CMOS technology to provide balanced drive outputs with integrated current limiting resistors.

Latches Feature Summary

• Transparent latch functionality with tri-state outputs suitable for bus systems
• Integrated current limiting resistors in output drivers
• Balanced drive capability reducing external termination requirements

Latches Applications

• Bus-oriented digital systems
• Data storage in microprocessor interfaces
• Octal latch configurations for parallel data handling

Latches Procurement Notes

Verify that the manufacturer is confirmed as Quality Semiconductor rather than Texas Instruments or Cypress, as cross-listings exist. Confirm the exact suffix 'ATQ3' matches your required package and temperature grade. Check if this specific variant is obsolete or active, as datasheets often reference the base 74FCT2373T model. Ensure compatibility with your system's voltage levels and signal integrity needs before ordering.

Latches Selection Notes

Select this component when a high-speed octal transparent latch with tri-state outputs is required for bus applications. The integrated current limiting resistors simplify design by minimizing the need for external series terminating resistors. Consider the operating temperature range and package dimensions to ensure fit within the target enclosure. Verify that the FCT speed grade meets the timing requirements of the specific bus architecture being implemented.

Latches Part Context

This part belongs to the 74FCT series of logic devices, which are known for high-speed performance comparable to LS-TTL but with CMOS power consumption. The 2373 designation typically refers to an octal transparent latch with 3-state outputs. Quality Semiconductor produces variants of these standard logic functions, often adapting them for specific industrial or commercial grades and packaging options distinct from the original Intel or Texas Instruments definitions.

Latches Replacement Considerations

The 74FCT2373T is a direct functional equivalent and plug-in replacement. Other compatible parts include the CY74FCT16373CTPVCT for similar latch functions, though pinouts and packages may differ. Always verify electrical specifications against the original design requirements when substituting.