CY74FCT573ATQCTE4

Latches Overview

The CY74FCT573ATQCTE4 is an octal transparent D-type latch manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features TTL-compatible input and output levels. The device provides three-state outputs and is housed in a 20-pin SSOP package. It supports surface mount installation and functions reliably across an operating temperature range from -40 °C to +85 °C.

Latches Feature Summary

• Octal transparent D-type latch architecture with eight independent data paths
• Three-state output capability for bus-oriented memory applications
• TTL-compatible input and output logic levels for system integration

Latches Applications

• Bus-oriented memory register implementations
• I/O port buffering for digital systems
• Clocked data storage in high-speed logic circuits

Latches Procurement Notes

Verify the specific suffix E4 indicates RoHS compliance and lead-free construction as per manufacturer standards. Confirm the package type matches the required PCB footprint. Ensure the operating environment stays within the specified temperature and voltage limits. Check for moisture sensitivity handling requirements during assembly.

Latches Selection Notes

Select this component when an octal latch with transparent mode and three-state outputs is required. It is suitable for designs needing TTL compatibility at 5 V operation. Consider the SSOP package constraints for board space. Verify that the propagation delay characteristics meet the timing requirements of the target application circuit.

Latches Part Context

This part belongs to the Texas Instruments FCT logic family, designed for high-speed CMOS applications. The base model is the CY74FCT573T. The E4 suffix typically denotes environmental compliance, specifically lead-free manufacturing and RoHS adherence, without altering the electrical function or pinout configuration.

Latches Replacement Considerations

The CY74FCT573TQCT is the standard non-compliant variant. The CY74FCT573ATQCT is the advanced speed grade version. Cross-reference datasheets to confirm package dimensions and electrical specifications match before substitution.