SN74HCT573PWR

Latches Overview

The SN74HCT573PWR is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the HCT logic series. It features eight D-type latches with three-state outputs in a 20-pin SSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 25 ns at 5 V. It provides a low-level output current of 6 mA and a high-level output current of -6 mA. The component functions as a bus driver with non-inverting polarity and is rated for an operating temperature range from -40 °C to +85 °C.

Latches Feature Summary

• Octal transparent D-type latch architecture with three-state outputs
• Compatible with standard TTL logic input levels due to HCT series design
• Low static power consumption characteristic of CMOS technology

Latches Applications

• Registering fast-moving data in digital systems
• Driving bus-oriented memories and switches
• Performing workholding registers in I/O hardware

Latches Procurement Notes

Verify the specific suffix PWR indicates the TSSOP/SSOP-20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration. Ensure the selected component matches the required 4.5 V to 5.5 V operating voltage range for your circuit design specifications.

Latches Selection Notes

Select this component when interfacing between TTL and CMOS logic families requiring octal storage. The HCT series ensures compatibility with standard 5 V TTL inputs. Consider the 25 ns propagation delay and 6 mA drive capability against system timing requirements. Verify that the SSOP-20 package fits the available PCB footprint constraints.

Latches Part Context

This part belongs to the SN74HCT573 family of octal transparent D-type latches. It shares functional similarities with other 74-series latches but is distinguished by its High-speed CMOS technology with TTL-compatible inputs. The PWR suffix denotes the specific surface-mount packaging configuration used for automated assembly processes.

Latches Replacement Considerations

SN74HCT573DBR: Alternative SSOP-20 package variant from the same manufacturer. SN74HCT573NSRG4: SOIC-20 package alternative offering similar electrical characteristics.