SN74ACT14DR

Overview

The SN74ACT14DR is a hex Schmitt-trigger inverter manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs designed to handle slow or noisy signals. The device provides continuous output drive currents of ±24 mA at 5 V, with short-term capabilities up to ±75 mA. It supports driving 50-ohm transmission lines and offers propagation delays as low as 9.5 ns. Packaged in a 14-pin SOIC format, it functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• TTL-compatible Schmitt trigger inputs for noise immunity
• High current output drive capability
• Transmission line driver support

Applications

• Digital signal inversion
• Switch debouncing
• Synchronous clock input processing

Procurement Notes

Verify the specific package variant and tape-and-reel specifications against the manufacturer's latest datasheet before procurement. Confirm that the operating temperature range meets system requirements. Ensure ESD handling protocols are followed during assembly. Cross-reference the ordering suffix with official documentation to confirm pinout and electrical characteristics match the design intent.

Selection Notes

Select this component when interfacing noisy digital signals requiring hysteresis for clean switching. It is suitable for applications needing high fan-out and fast propagation speeds. Consider the SOIC package constraints for PCB layout. Evaluate thermal performance if multiple inverters operate simultaneously under heavy load conditions.

Part Context

This part belongs to the SN74ACT series of advanced CMOS logic devices. It shares functional similarities with other hex inverters but distinguishes itself through integrated Schmitt trigger functionality. The ACT series offers faster speeds than standard AC counterparts while maintaining compatibility with TTL logic levels.

Replacement Considerations

SN74ACT14DRE4 is a verified equivalent variant from the same manufacturer.