CD74HCT573DBR

Latches Overview

The CD74HCT573DBR 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 35 ns at 4.5 V. It exhibits a static current of 8 uA, with low-level output current capability of 32 mA and high-level output current of -6 mA. The component functions across an extended temperature range from -55°C to +125°C.

Latches Feature Summary

• Provides eight independent transparent D-type latches for data storage applications
• Features three-state outputs to facilitate bus-oriented systems
• Compatible with standard CMOS logic using TTL-compatible input levels
• Supports surface-mount installation via a compact 20-SSOP package

Latches Applications

• Bus-oriented memory mapping
• Register banks for data storage
• Temporary data holding in digital circuits

Latches Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with design requirements. Confirm that the SSOP-20 package dimensions and pinout match the PCB footprint. Check for RoHS compliance status and moisture sensitivity level ratings relevant to assembly processes. Ensure the operating temperature range meets the environmental conditions of the intended application.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing. The HCT series ensures compatibility with TTL-driven systems while maintaining CMOS power efficiency. Consider the 20-SSOP package for space-constrained surface-mount designs. Verify that the 35 ns propagation delay and electrical characteristics align with system timing constraints.

Latches Part Context

This component is part of the CD74HCT573 family of octal transparent latches. It shares functional similarities with other variants like SN74HCT573DBR but may differ in packaging or specific electrical parameters. The HCT series is designed to bridge the gap between CMOS and TTL logic families, offering robust performance in mixed-logic environments.

Latches Replacement Considerations

SN74HCT573DBR is a verified substitute with identical functionality and pinout.