CD74HCT573M

Latches Overview

The CD74HCT573M is an octal D-type transparent latch manufactured by Harris Corporation, belonging to the HCT logic series. It features eight D-type latches with three-state outputs in a 20-pin PDSO package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum propagation delay of 35 ns at 5 V. It provides high-level output current of -6 mA and low-level output current of 6 mA. The component functions as a bus driver with true outputs and is rated for operation between -55°C and 125°C.

Latches Feature Summary

• Octal D-type transparent latch architecture with tri-state outputs
• HCT CMOS technology ensuring TTL-compatible input levels
• Wide operating temperature range suitable for industrial environments

Latches Applications

• Parallel data storage in digital systems
• Bus-oriented memory applications
• Register banks for temporary data holding

Latches Procurement Notes

Verify manufacturer origin as Harris Corporation or successor entities like Texas Instruments due to historical acquisitions. Confirm package type matches PDSO-20 specifications. Check RoHS compliance status against specific production batches. Ensure datasheet version aligns with Harris legacy documentation standards.

Latches Selection Notes

Select this component when requiring an octal latch with tri-state capability in a surface-mount package. The HCT series ensures compatibility with standard TTL logic families. Consider thermal performance given the wide operating temperature range. Verify pinout compatibility if replacing older National Semiconductor equivalents.

Latches Part Context

This part belongs to the 74HCT573 family of octal D-type latches. Harris Corporation produced these components before industry consolidations involving Fairchild and Texas Instruments. The device serves as a fundamental building block for parallel data transfer and storage in digital circuits.

Latches Replacement Considerations

MM74HCT573MTC by onsemi is listed as a similar replacement option.