74AC14MTR

Overview

The 74AC14MTR is a Hex Schmitt Trigger Inverter manufactured by STMicroelectronics, utilizing advanced high-speed CMOS technology. It operates within a supply voltage range of 2V to 6V and supports an operating temperature from -55°C to +125°C. The device features a typical propagation delay of 4.5ns at 5V, with symmetrical output impedance providing minimum drive currents of 24mA. It includes protection circuits for 2KV ESD immunity and is designed for balanced propagation delays.

Feature Summary

• Hex Schmitt trigger inverter configuration with six independent channels
• High noise immunity suitable for line receivers with slow rise/fall input signals
• Balanced propagation delays ensuring symmetrical signal timing
• Robust latch-up immunity and static discharge protection

Applications

• Line receivers requiring hysteresis for noisy environments
• Signal conditioning for slow transition waveforms
• Pulse generation and waveform shaping circuits
• Oscillator circuits utilizing the Schmitt trigger threshold

Procurement Notes

Verify the specific package type (SO-14) against design requirements. Confirm that the RoHS status aligns with environmental regulations for the target market. Ensure the ordering suffix matches the required reel or tube packaging format. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when hex Schmitt trigger functionality is required in a compact surface-mount form factor. Consider the 2V to 6V operating range for compatibility with various logic families. Evaluate the 4.5ns typical propagation delay against system speed requirements. Verify that the SO-14 package dimensions fit the available PCB real estate constraints.

Part Context

This component belongs to the 74AC series of advanced CMOS logic devices. It serves as a functional equivalent to the standard 74LS14 but offers significantly higher speed and lower power consumption. The device integrates buffer stages to enhance output stability and noise immunity compared to basic inverters.

Replacement Considerations

Check pinout compatibility with existing designs. Verify that replacement parts maintain the same Schmitt trigger characteristics and voltage thresholds. Ensure the substitute component supports the required operating temperature range and package style.