SN74AHC573DWRG4

Overview

The SN74AHC573DWRG4 is an octal transparent D-type latch manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and features three-state outputs. The device utilizes AHC logic technology for high-speed performance with low power consumption. It is housed in a 20-SOIC surface-mount package and supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Provides eight transparent D-type latches with independent data inputs and common clock and output enable controls.
• Features three-state outputs designed to interface directly with system buses without external pull-up or pull-down resistors.
• Utilizes advanced AHC (Advanced High-Speed CMOS) technology to achieve high switching speeds while maintaining low static power dissipation.

Applications

• Registering and buffering data lines in digital communication systems
• Driving bus-oriented loads in microprocessor-based designs
• Clock domain crossing applications requiring transparent latch functionality

Procurement Notes

Verify the complete part number including the G4 suffix, which indicates lead-free status and RoHS compliance. Confirm the SOIC-20 package variant matches your PCB footprint requirements. Ensure the operating voltage range aligns with your system's power supply specifications before integration.

Selection Notes

Select this component when high-speed data latching is required with minimal power consumption. The AHC series offers superior speed compared to standard HC logic. Verify that the three-state output capability meets your bus isolation needs. Consider the thermal characteristics of the SOIC-20 package for your specific application environment.

Part Context

This device belongs to the SN74AHC family of high-speed CMOS logic devices. It serves as a direct upgrade path for legacy SN74HC573 designs, offering improved propagation delays and lower power consumption. The G4 suffix denotes environmental compliance with lead-free manufacturing processes.

Replacement Considerations

SN74AHC573DWRE4 is a verified equivalent part number representing the same functional device with alternative packaging or environmental certification variations.