SN74ACT08DR

Overview

The SN74ACT08DR is a quad 2-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74ACT logic series, designed for high-speed digital applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and features a propagation delay of 9 ns at 5 V with a 50 pF load. It provides symmetric output drive currents of 24 mA for both high and low states. Packaged in a 14-SOIC surface-mount format, it supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Contains four independent 2-input AND logic gates within a single package
• Delivers high-speed performance with a 9 ns propagation delay under standard conditions
• Provides robust 24 mA symmetrical output drive capability for reliable signal transmission
• Compatible with standard CMOS logic levels using TTL-compatible inputs

Applications

• High-speed data processing circuits requiring fast logical operations
• Memory address decoding systems in computer architectures
• Digital control logic interfaces for industrial automation equipment
• Signal gating and masking functions in communication hardware

Procurement Notes

Verify the exact part number against official Texas Instruments documentation to ensure compatibility with specific design requirements. Confirm that the 14-SOIC package dimensions match your PCB footprint constraints. Check for RoHS compliance status if environmental regulations apply to your manufacturing process. Ensure supply chain sources provide genuine components to avoid counterfeit risks associated with electronic parts.

Selection Notes

Select this component when system timing requires faster switching speeds than standard 74LS or 74HC families offer. The 24 mA output current makes it suitable for driving moderate capacitive loads without external buffering. Consider the 4.5 V to 5.5 V operating range to ensure compatibility with existing 5 V power rails. Evaluate thermal management needs given the active operating temperature range up to 85°C.

Part Context

This device is part of the broader 74ACT family, which bridges the performance gap between older bipolar technologies and modern CMOS solutions. It offers improved speed over legacy 74LS variants while maintaining pin-out compatibility with many standard logic families. The SN74ACT08 series is widely used in general-purpose digital logic designs where moderate speed and drive strength are required.

Replacement Considerations

SN74ACT08DRG3 is a verified equivalent variant from Texas Instruments with identical electrical specifications and functionality.