SN74ACT14DRE4

Overview

The SN74ACT14DRE4 is a hex Schmitt-trigger inverter from Texas Instruments, housed in a 14-pin SOIC package. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to 85°C. The device features TTL-compatible inputs with hysteresis for noise immunity. Key electrical parameters include a maximum propagation delay of 11.5ns at 5V with a 50pF load, static current consumption of 2µA, and output drive capabilities of ±24mA. It is RoHS compliant and classified under EAR99.

Feature Summary

• Hex Schmitt-trigger inverters providing noise immunity for slow or noisy input signals
• TTL-compatible input logic levels ensuring compatibility with standard digital interfaces
• High output drive capability supporting continuous ±24mA and short-term ±75mA loads
• Surface-mount SOIC-14 packaging designed for automated assembly processes

Applications

• Inverting digital signals in logic circuits
• Eliminating switch bounce and jitter in mechanical switches
• Synchronous inversion of clock input signals

Procurement Notes

Verify the specific ordering suffix 'E4' confirms lead-free composition and RoHS compliance as per manufacturer specifications. Confirm the package type matches the required PCB footprint, specifically the 14-SOIC (0.154 inch width). Ensure the operating temperature grade (-40°C to 85°C) aligns with the target application environment. Check for any recent Product Change Notifications or End-of-Life notices associated with this part number before finalizing procurement plans.

Selection Notes

Select this component when hex inverter functionality with Schmitt-trigger inputs is required for signal conditioning. It is suitable for applications involving noisy environments where clean switching thresholds are necessary. The ACT series offers faster performance than standard 74LS counterparts while maintaining CMOS low power characteristics. Consider the SOIC-14 package constraints regarding board space and thermal dissipation requirements for the specific design.

Part Context

This device belongs to the Texas Instruments SN74ACT family of advanced CMOS logic devices. The SN74ACT14 variant specifically integrates six independent inverters with Schmitt-trigger inputs on a single chip. It is part of the broader 74-series logic ecosystem, designed to replace older bipolar technologies with higher speed and lower power consumption options in industrial and commercial electronic systems.

Replacement Considerations

Public confirmed substitute part numbers include SN74ACT14DRG4 and SN74ACT14PWRG4. Verify pinout compatibility and electrical specifications before substitution.