74FCT573CTSOG8

Latches Overview

The IDT74FCT573CTSOG8 is an octal transparent D-type latch belonging to the 74FCT logic series. It features a single circuit with eight data inputs and corresponding outputs, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.75V to 5.25V and supports a propagation delay of 1.5ns. Output characteristics include three-state capability with high-level output currents of 15mA and low-level currents of 48mA. It functions across an industrial temperature range from -40°C to +85°C.

Latches Feature Summary

• Octal transparent latch architecture providing eight independent D-type storage elements
• Three-state outputs for effective bus driving and system isolation
• High drive strength suitable for direct interface with CMOS and TTL loads

Latches Applications

• Registering data on microprocessor buses
• Buffering memory address lines
• Temporary data storage in digital control systems

Latches Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers. Confirm RoHS compliance status and check for End-of-Life notices, as this specific part number may be discontinued. Ensure the 20-SOIC package matches your PCB footprint requirements before procurement.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for 5V logic applications. Consider the 1.5ns propagation delay for timing constraints. Verify that the 4.75V to 5.25V operating voltage aligns with your system power rails and that the SOIC-20 package fits your assembly constraints.

Latches Part Context

This component is part of the broader 74FCT family, which bridges Fast CMOS and Fast TTL technologies. Originally manufactured by Integrated Device Technology (IDT), these parts are now often associated with Renesas Electronics following corporate acquisitions. The 74FCT573 variant specifically provides octal latching functionality common in legacy and industrial digital designs.

Latches Replacement Considerations

Publicly confirmed substitute part numbers include CY74FCT2573CTSOC and CY74FCT573ATSOCT from Texas Instruments. Verify pinout compatibility and electrical specifications against original datasheets before substitution.