74ACT14MTC

Overview

The onsemi 74ACT14MTC is a hex inverter integrated circuit featuring Schmitt trigger inputs, manufactured using advanced silicon gate CMOS technology. It belongs to the 74ACT logic series and operates within a supply voltage range of 4.5 V to 5.5 V. The device contains six independent inverter gates, each equipped with a Schmitt trigger input to transform slowly changing signals into sharply defined outputs. It provides differential outputs with source/sink currents of 24 mA and exhibits a propagation delay of 10 ns at 5 V with a 50 pF load. The component is housed in a 14-TSSOP surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Schmitt trigger inputs provide greater noise margins and convert slowly changing signals into jitter-free output signals.
• Outputs are capable of sourcing and sinking 24 mA for robust drive capability.
• Inputs are TTL-compatible, ensuring compatibility with standard logic families.
• CMOS technology reduces ICC by 50% compared to conventional inverters.

Applications

• Signal conditioning for noisy environments requiring hysteresis
• Waveform shaping of digital signals
• Pulse generation circuits
• Oscillator applications

Procurement Notes

Verify current availability status as the part may be discontinued or subject to limited supply. Confirm RoHS compliance details via official datasheets. Check for alternative packages or pin-compatible substitutes if original stock is unavailable. Ensure ordering suffixes match required packaging formats such as tube or reel specifications.

Selection Notes

Select this component when TTL-compatible inputs and high noise immunity are required in a 5 V system. The Schmitt trigger feature is essential for cleaning up distorted signals. Compare propagation delays and output drive strengths against other 74ACT series inverters. Consider package constraints and thermal performance for the specific application environment.

Part Context

This component is part of the 74ACT family of high-speed CMOS logic devices. It serves as a hex inverter with Schmitt triggers, distinct from standard inverters due to its hysteresis characteristics. The 74ACT series offers performance comparable to TTL but with lower power consumption typical of CMOS technologies. It is widely used in digital systems requiring reliable signal inversion and noise rejection.

Replacement Considerations

MC74ACT14DR2G is a documented substitute offering similar functionality in a SOIC-14 package. SN74ACT14PW and SN74ACT14PWR from Texas Instruments are direct replacements. Verify pinout compatibility and electrical parameters before substitution.

FAQ

What is the primary function of the Schmitt trigger inputs?

The Schmitt trigger inputs provide hysteresis, which increases noise margins and allows the device to transform slowly changing input signals into sharply defined, jitter-free output signals.

Is the 74ACT14MTC compatible with TTL logic levels?

Yes, the 74ACT14MTC has TTL-compatible inputs, allowing it to interface directly with TTL logic outputs without additional level shifting components.