SN74ACT08PW

Overview

The SN74ACT08PW is a quad 2-input positive-AND gate manufactured by Texas Instruments. It belongs to the 74ACT logic series, designed for high-speed CMOS applications with TTL-compatible inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical characteristics include a low-level output current of 24 mA and a high-level output current of -24 mA. The typical propagation delay is 10 ns. It is housed in a 14-pin TSSOP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides four independent 2-input AND logic functions in a single integrated circuit.
• Features TTL-compatible input thresholds allowing direct interfacing with TTL logic systems.
• Delivers high-speed performance with a typical propagation delay of 10 ns.
• Offers robust output drive capability with ±24 mA source and sink currents.

Applications

• High-speed data processing circuits requiring precise logical conjunction.
• Interface modules connecting TTL-based systems with CMOS logic components.
• Memory address decoding and control logic in digital instrumentation.
• General-purpose logic gating in industrial automation controllers.

Procurement Notes

Verify the specific suffix 'PW' confirms the TSSOP-14 package variant when sourcing. Confirm RoHS compliance status as it may vary by production batch or regional manufacturing site. Ensure the intended application environment falls within the specified -40°C to +85°C operating temperature range. Cross-reference the manufacturer part number against official distributor catalogs to avoid confusion with similar series variants like HC or ALS.

Selection Notes

Select this component when system design requires both high switching speed and strong output drive capabilities. The ACT series is appropriate for designs needing faster performance than standard HC devices while maintaining compatibility with existing TTL logic levels. Consider the TSSOP package constraints regarding thermal dissipation and board space. Evaluate if the 4.5V to 5.5V supply requirement aligns with the target power rail infrastructure.

Part Context

This component is part of the broader 74ACT family of high-speed CMOS logic devices. It shares functional similarities with other quad AND gates but distinguishes itself through superior speed and drive strength compared to standard HC counterparts. The SN74ACT08 series is widely utilized in legacy system upgrades where TTL compatibility remains critical alongside modern CMOS efficiency requirements.

Replacement Considerations

SN74ACT08DRG3: Surface-mount SOIC-14 variant with identical electrical specifications. SN74ACT08N: Through-hole PDIP-14 alternative offering equivalent performance in a different package format. SN74ACT08PWRQ1: Automotive-grade version suitable for harsher environmental conditions.