74HCT14D

Overview

The Toshiba 74HCT14D is a high-speed CMOS Schmitt inverter fabricated with silicon gate C2MOS technology. It provides six independent inverters within a single package, achieving operation speeds comparable to LSTTL while maintaining low power consumption. The device operates on a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to 125°C. Key electrical parameters include a typical propagation delay of 17ns at 5V and a maximum quiescent current of 1µA.

Feature Summary

• High-speed logic operation similar to equivalent LSTTL standards
• Low power dissipation characteristics inherent to CMOS design
• Wide interfacing capability compatible with TTL, NMOS, and CMOS outputs
• Balanced propagation delays for symmetrical signal transitions

Applications

• Level conversion between TTL/NMOS and High Speed CMOS systems
• Signal conditioning using Schmitt trigger inputs for noise immunity
• General-purpose digital logic inversion in industrial environments

Procurement Notes

Verify the specific manufacturer part number against official Toshiba Semiconductor and Storage documentation to ensure authenticity. Confirm that the component meets RoHS3 compliance requirements and matches the specified SOIC-14 surface mount package dimensions before finalizing procurement orders.

Selection Notes

Select this component when interfacing legacy TTL or NMOS logic families with modern High Speed CMOS circuits. The integrated Schmitt trigger functionality makes it suitable for applications requiring clean signal regeneration from noisy input sources. Ensure the design accommodates the 4.5V to 5.5V supply voltage constraint.

Part Context

This device belongs to the 74HCT series of digital integrated circuits, designed to bridge the gap between older transistor-transistor logic (TTL) standards and complementary metal-oxide-semiconductor (CMOS) technologies. Manufactured by Toshiba Semiconductor and Storage, it utilizes advanced C2MOS processes to deliver performance metrics that align with industry-standard HCT logic families.

Replacement Considerations

Compatible substitutes include the Nexperia 74HC14D and other generic 74HCT14 equivalents. Verify pinout compatibility and ensure the alternative component maintains the required 4.5V to 5.5V operating voltage range and Schmitt trigger input specifications.