SN74AHC573N

Overview

The SN74AHC573N is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the AHC logic family. It features eight D-type latches with three-state outputs in a 20-pin DIP package. The device operates within a supply voltage range of 2V to 5.5V and supports a wide operating temperature range from -40°C to +85°C. Key electrical characteristics include low static power consumption and high-speed performance typical of advanced CMOS technology.

Feature Summary

• Provides eight independent transparent D-type latches for data storage applications
• Features three-state outputs to facilitate direct bus connections
• Operates across a broad voltage range suitable for various digital systems
• Designed for low power consumption with high noise immunity

Applications

• Parallel-to-serial data conversion circuits
• Buffering and register operations in digital systems
• Bus-oriented memory address latching
• General-purpose I/O interface buffering

Procurement Notes

Verify the specific package type and pin configuration against your schematic requirements. Confirm that the supply voltage levels match your system's operational range. Ensure thermal management meets the specified operating temperature limits. Check for any lead-free or RoHS compliance certifications required by your manufacturing standards.

Selection Notes

Select this component when eight parallel latches with tri-state capability are needed. Consider the AHC series for improved speed and lower power compared to standard HC logic. Verify that the DIP-20 package fits your PCB layout constraints. Evaluate if the 2V to 5.5V voltage range aligns with your power supply design.

Part Context

This part belongs to the Texas Instruments SN74AHC573 family of octal D-type latches. It shares functional similarities with other variants like SN74AHC573PW but differs in packaging. The N suffix typically denotes a through-hole DIP package, distinguishing it from surface-mount options. It serves as a fundamental building block for sequential logic designs requiring data retention and bus isolation.