SN74ALS373ADWRG4

Overview

The SN74ALS373ADWRG4 is an octal D-type transparent latch manufactured by Texas Instruments. It belongs to the ALS logic series and features tri-state outputs in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 16 ns, a low-level output current of 32 mA, and a high-level output current of -2.6 mA. It supports surface mount installation and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Provides eight D-type transparent latching circuits with tri-state outputs for bus-oriented memory mapping and driving applications.
• Features low-power Schottky (ALS) technology to reduce power consumption while maintaining high-speed performance.
• Includes dedicated output enable controls to manage data flow on system buses effectively.

Applications

• Bus-oriented memory mapping
• Registering and buffering digital signals
• Driving high-capacitance or low-impedance loads

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards during procurement. Confirm the SOIC-20 package dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to +70°C aligns with your environmental conditions. Cross-reference the manufacturer part number with official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring moderate speed with lower power consumption than standard TTL. The ALS series offers a balance between speed and power dissipation suitable for general-purpose logic applications. Consider the 20-pin SOIC package for surface mount assembly compatibility. Verify that the 5V supply voltage matches your system's logic levels.

Part Context

This part is part of the SN74ALS373A family of octal D-type latches. The 'G4' suffix typically denotes lead-free packaging compliant with RoHS directives. It serves as a successor or alternative to earlier LS series devices, offering improved power efficiency while maintaining similar pinouts and functionality for backward compatibility in existing designs.

Replacement Considerations

SN74ALS373ADW is the non-green equivalent without the G4 suffix. SN74LS373DWR is a compatible LS series alternative with slightly different electrical characteristics. SN74AS373DWR offers faster switching speeds but higher power consumption.