CY74FCT573CTQCTG4

Latches Overview

The CY74FCT573CTQCTG4 is an octal D-type transparent latch manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features non-inverting outputs with a propagation delay of 4.7 ns at 5 V. The device provides high drive capability with low-level output currents up to 32 mA and high-level output currents of -32 mA. It is housed in a QSOP-20 package, supports surface mount installation, and functions reliably across an operating temperature range from -40 °C to +85 °C.

Latches Feature Summary

• Octal configuration providing eight independent D-type transparent latches within a single integrated circuit
• High-drive output stage capable of sourcing and sinking significant current for direct bus interfacing
• Fast switching performance characterized by a propagation delay of 4.7 ns under standard conditions

Latches Applications

• Parallel data storage in high-speed digital systems
• Bus interface buffering for microprocessor-based architectures
• Register stages in communication equipment signal processing

Latches Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per manufacturer standards. Confirm the package designation matches the required QSOP-20 footprint for PCB layout compatibility. Ensure moisture sensitivity level requirements are met during assembly processes to prevent damage. Cross-reference the full part number against official Texas Instruments databases to validate current production status and availability.

Latches Selection Notes

Select this component when an octal latch with fast propagation speed and high drive strength is required. The FCT logic family ensures compatibility with standard CMOS interfaces while offering superior speed over older TTL equivalents. Consider the QSOP-20 package dimensions for space-constrained designs requiring surface mount technology. Verify that the 5 V nominal supply voltage aligns with the system power distribution network.

Latches Part Context

This device belongs to the Texas Instruments 74FCT logic family, designed for high-speed CMOS applications. The CY74FCT573 series specifically addresses the need for parallel data retention in complex digital circuits. As a transparent latch, it allows data passage when enabled, differing from edge-triggered flip-flops. The G4 suffix typically denotes environmental compliance modifications within the product line.

Latches Replacement Considerations

The CY74FCT573TQCT serves as a functional equivalent within the same series. Verify pinout compatibility and electrical specifications before substitution. Check if alternative manufacturers offer compatible octal latches with identical timing characteristics.