SN74AHC573DW

Overview

The SN74AHC573DW is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the AHC logic series. It features eight non-inverting outputs with three-state capability and operates within a supply voltage range of 2 V to 5.5 V. The device utilizes an SOIC-20 surface-mount package and supports industrial temperature ranges from -40°C to +125°C. Key electrical characteristics include propagation delays of 14.5 ns and 8.8 ns, static current of 4 uA, low-level output current of 32 mA, and high-level output current of -8 mA.

Feature Summary

• Provides eight transparent D-type latches with tri-state outputs for data storage and bus interfacing
• Operates across a wide supply voltage range from 2 V to 5.5 V for flexible system integration
• Features low static current consumption to support power-efficient designs

Applications

• Data register applications in digital systems
• Bus-oriented memory mapping
• Clock drivers and buffering

Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-20 package and tape-and-reel or tube availability as required by your assembly process. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the operating temperature range meets your environmental requirements. Cross-reference the full part number with the latest datasheet to confirm pinout and electrical specifications match your design constraints.

Selection Notes

Select this component when designing systems requiring octal latching with tri-state outputs and wide voltage compatibility. The AHC series offers improved speed and lower power consumption compared to standard HC logic. Consider the SOIC-20 package for surface-mount assembly needs. Verify that the input levels are compatible with your driving logic family, as AHC inputs are CMOS-compatible.

Part Context

This component is part of the SN74AHC573 family of octal transparent D-type latches with three-state outputs. It shares functional similarities with other members like the SN74AHC573DWR and SN74AHC573DBR, differing primarily in packaging and reel specifications. The AHC series represents a high-speed CMOS technology optimized for performance and low power in general-purpose digital applications.

Replacement Considerations

Compatible substitutes include SN74AHC573DWR (same function, different reel packaging) and SN74AHC573DBR (SSOP-20 package). For broader compatibility, check SN74HC573 variants, though note differences in speed and drive strength. Always verify pinout and electrical parameters against the target replacement's datasheet.