SN74AHC573DWG4

Overview

The SN74AHC573DWG4 is an octal transparent D-type latch from the Texas Instruments AHC logic family. It features eight non-inverting outputs with three-state capability, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 2 V to 5.5 V and supports a wide operating temperature range from -40°C to +125°C. Key electrical parameters include a propagation delay of 14.5 ns and 8.8 ns, a static current of 4 uA, a low-level output current of 32 mA, and a high-level output current of -8 mA.

Feature Summary

• Provides eight transparent D-type latches with tri-state outputs for efficient data bus interfacing.
• Operates across a broad voltage range from 2 V to 5.5 V, ensuring compatibility with various system power supplies.
• Features robust output drive capabilities with a low-level output current of 32 mA.
• Designed for extended industrial temperature operation up to +125°C.

Applications

• Data register applications requiring parallel-to-serial or serial-to-parallel conversion.
• Bus-oriented memory mapping and address decoding circuits.
• High-speed digital signal processing interfaces.

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the SOIC-20 package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental constraints. Cross-reference the datasheet for exact pinout configurations to prevent installation errors during assembly.

Selection Notes

Select this component when an octal latch with tri-state outputs is required for high-speed digital systems. The AHC series offers faster performance compared to standard HC logic while maintaining CMOS low power consumption. Consider the 2V to 5.5V operating range if your design requires flexibility in supply voltage levels. Verify that the 32mA sink current capability is sufficient for your load requirements.

Part Context

This part belongs to the SN74AHC573 family of octal transparent D-type latches. The 'G4' suffix typically denotes lead-free packaging and compliance with RoHS directives. It is part of Texas Instruments' broader portfolio of advanced high-speed CMOS logic devices designed for demanding digital applications.

FAQ

What is the maximum supply voltage for the SN74AHC573DWG4?

The maximum supply voltage (VCC) for this device is 5.5 V.

Does the SN74AHC573DWG4 have tri-state outputs?

Yes, the device features eight tri-state outputs controlled by an output enable input.