SN74ALS08DR

Overview

The SN74ALS08DR is a quadruple 2-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74ALS logic series and is housed in a 14-pin SOIC surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a maximum propagation delay of 14 ns at 5 V with 50 pF load capacitance, a low-level output current of 8 mA, and a high-level output current of -400 µA. It supports a wide operating temperature range from 0°C to +70°C.

Feature Summary

• Contains four independent 2-input AND logic gates within a single package.
• Utilizes Advanced Low-power Schottky (ALS) technology for optimized performance.
• Designed for surface-mount installation using the standard 14-SOIC footprint.

Applications

• Digital logic circuits requiring multiple AND operations
• Data acquisition systems
• Communication equipment signal processing

Procurement Notes

Verify the specific ordering suffix to confirm the tape-and-reel packaging configuration intended for automated assembly processes. Ensure the component meets RoHS3 compliance requirements if mandated by your manufacturing standards. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a balance between speed and power consumption is required compared to standard LS or S series alternatives. The ALS series offers faster switching speeds than LS devices while consuming less power than S series parts. Confirm that the 14-SOIC package dimensions align with the target PCB layout constraints and that the 4.5 V to 5.5 V supply range matches the system voltage architecture.

Part Context

This part is a member of the Texas Instruments 74ALS08 family, which provides quad 2-input AND gates. The 'D' suffix indicates the SOIC package type, while the 'R' suffix denotes reel packaging. It serves as a direct replacement for other manufacturers' 74ALS08 equivalents in existing designs, maintaining pin compatibility and logical functionality within the broader 74xx logic ecosystem.

Replacement Considerations

Compatible substitutes include SN74ALS08N and SN74ALS08NSR. Verify package compatibility when substituting DIP variants for surface-mount designs.