SN74HCT573DWG4

Latches Overview

The SN74HCT573DWG4 is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the HCT logic series. It features eight non-inverting outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides low-level output current of 32 mA and high-level output current of -6 mA. Propagation delay is specified at 52 ns at 4.5 V and 47 ns at 5.5 V, with a static current consumption of 8 uA. It functions in temperatures from -40°C to +85°C and is housed in a SOIC-20 surface-mount package.

Latches Feature Summary

• Octal transparent D-type latch architecture with eight independent data paths
• High-speed CMOS technology ensuring compatibility with standard TTL levels
• Non-inverting output polarity for direct signal transmission
• Low static power consumption suitable for energy-efficient designs

Latches Applications

• Parallel-to-serial data conversion circuits
• Buffering and latching of address/data buses in microprocessor systems
• Register files in digital logic applications
• Data storage elements in industrial control interfaces

Latches Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance status and lead time requirements. Confirm that the SOIC-20 package dimensions match your PCB footprint constraints. Ensure the operating temperature range meets your environmental specifications. Check for any recent obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Latches Selection Notes

Select this component when interfacing between 5V logic families requiring HCT speed and density. The SN74HCT573DWG4 offers a balance of propagation delay and drive capability for general-purpose digital buffering. Consider the SOIC-20 package for automated assembly processes. Evaluate alternative packages if higher pin density or different thermal characteristics are required for the specific application layout.

Latches Part Context

This part belongs to the SN74HCT573 family of octal transparent D-type latches. It shares functional similarities with other members like the SN74HCT573PW and SN74HCT573NSRG4, differing primarily in packaging and manufacturing revisions. The HCT series is designed for operation with standard 5V supplies while maintaining TTL-compatible input thresholds, making it a versatile choice for mixed-voltage digital systems.

Latches Replacement Considerations

SN74HCT573PW: Same logical function and electrical characteristics but utilizes a TSSOP-20 package instead of SOIC-20. Verify pinout compatibility and physical footprint differences before substitution.