SN74AHCT573NG4

Overview

The SN74AHCT573NG4 is an octal transparent D-type latch manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides eight non-inverting outputs with a propagation delay of 18 ns at 5 V. It utilizes a 20-pin SOIC package and supports surface-mount installation. The component functions in industrial temperature ranges from -40°C to +85°C, ensuring reliable data storage and transfer for digital logic applications requiring high-speed performance and low power consumption.

Feature Summary

• Features TTL-compatible inputs for direct interfacing with standard logic families
• Provides eight transparent D-type latches for parallel data storage
• Offers non-inverting output configuration for signal integrity

Applications

• Parallel data buffering in digital systems
• Register file implementation in microprocessor interfaces
• Data storage for display drivers and memory mapping

Procurement Notes

Verify the specific suffix 'G4' against current manufacturer documentation to confirm lead-free status and RoHS compliance details. Confirm availability as this part number may be subject to lifecycle changes or obsolescence notices. Ensure the SOIC-20 footprint matches your PCB design requirements before finalizing procurement decisions.

Selection Notes

Select this component when TTL-level input compatibility is required alongside HCT speed characteristics. The SN74AHCT573NG4 is suitable for designs needing eight-bit parallel latching without tri-state outputs. Consider the SOIC-20 package constraints and operating temperature range relative to your system's thermal environment and board space limitations.

Part Context

This component belongs to the SN74AHCT573 family of octal transparent D-type latches. It shares functional similarities with other members like the SN74HCT573 but offers enhanced speed performance typical of the AHCT series. The device is designed for general-purpose digital logic applications requiring reliable data retention and fast switching capabilities within standard 5V logic systems.

Replacement Considerations

Direct substitutes include the SN74HCT573NSRG4 and SN74AHCT573DWRE4. Verify pinout compatibility and electrical specifications such as propagation delay and output drive strength before substitution. Ensure the replacement part meets the same package and environmental requirements.