74LCX14MTR

Inverter Gates Overview

The 74LCX14MTR is a low voltage CMOS hex Schmitt inverter manufactured by STMicroelectronics. It operates within a supply voltage range of 2.0V to 3.6V and features 5V tolerant inputs, allowing interfacing with 5V signal environments. The device provides high-speed performance with a maximum propagation delay of 5.0ns at VCC = 3V. It includes power-down protection on all inputs and outputs, symmetrical output impedance, and balanced propagation delays. The component is housed in an SO-14 package and supplied in tape and reel format.

Inverter Gates Feature Summary

• Features hysteresis between positive and negative input thresholds for stable operation with slow rise/fall signals
• Includes power-down protection circuits on inputs and outputs to prevent excessive current consumption
• Provides 5V tolerant inputs suitable for interfacing with 5V signal environments while operating at lower voltages

Inverter Gates Applications

• Line receivers requiring noise immunity for slow rise/fall input signals
• Low power and high speed 3.3V applications
• Systems requiring interface between 5V signal environments and lower voltage logic

Inverter Gates Procurement Notes

Verify the specific ordering code matches the required package type, as the 74LCX14 series is available in both SO-14 and TSSOP-14 configurations. Confirm that the MTR suffix corresponds to the SO-14 tape and reel packaging variant intended for surface mount assembly processes. Ensure compatibility with the target operating temperature range of -40°C to +85°C.

Inverter Gates Selection Notes

Select this component when hysteresis is required to clean up noisy or slowly changing digital signals. It serves as a direct pin-compatible replacement for standard 74 series inverters where Schmitt trigger functionality is needed. Consider its 5V tolerance capability if the design involves mixed-voltage domains without additional level shifting components.

Inverter Gates Part Context

This part belongs to the 74LCX family of low voltage CMOS logic devices from STMicroelectronics. The LCX series is designed for high-speed operation with low power consumption, offering performance comparable to 5V AC/ACT families but at reduced supply voltages. The 74LCX14 specifically adds Schmitt trigger characteristics to the standard inverter function found in the 74LCX04.

Inverter Gates Replacement Considerations

The 74LCX14 is pin and function compatible with the 74 series 14. It shares the same pin configuration as the 74LCX04 but includes hysteresis. Verify that any substitute maintains the 5V input tolerance and the specific propagation delay requirements for the application.