SN74HCT573NS

Latches Overview

The SN74HCT573NS 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 utilizes a 20-pin SOIC package for surface-mount installation. Key electrical characteristics include a propagation delay of 52 ns at 4.5 V and 47 ns at 5.5 V. Static current consumption is specified at 8 uA, with low-level output current capability of 32 mA and high-level output current of -6 mA. The operational temperature range spans from -40°C to +85°C.

Latches Feature Summary

• Provides eight transparent D-type latches with non-inverting outputs for data storage applications
• Compatible with TTL voltages through the HCT logic series design
• Operates reliably across a wide industrial temperature range

Latches Applications

• Parallel data buffering in digital systems
• Registering data in microprocessor-based interfaces
• Temporary storage in memory address decoding circuits

Latches Procurement Notes

Verify component authenticity through authorized channels as counterfeit risks exist for legacy logic ICs. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any manufacturing changes. Ensure storage conditions meet moisture sensitivity level requirements before soldering. Validate supplier documentation against official Texas Instruments records.

Latches Selection Notes

Select this component when TTL-compatible input levels are required alongside CMOS performance. The HCT series ensures compatibility with standard 5V logic families. Consider the SOIC-20 package dimensions for PCB layout constraints. Evaluate propagation delay specifications against system timing requirements. Verify thermal management capabilities within the specified operating temperature range.

Latches Part Context

This part belongs to the SN74HCT573 family of octal transparent D-type latches. The family includes variants with different packaging options such as SSOP and TSSOP. These devices share identical logical functionality but differ in physical form factors. The HCT series bridges TTL and CMOS technologies, offering noise immunity with fast switching speeds suitable for general-purpose digital logic applications.

Latches Replacement Considerations

SN74HCT573N: PDIP-20 through-hole equivalent with identical logical function. SN74HCT573PW: TSSOP-20 surface-mount alternative with compatible specifications. CD74HCT573DBR: SSOP-20 variant from the same manufacturer family.