MM74HC14SJ

Inverter Gates Overview

The MM74HC14SJ is a hex inverting Schmitt trigger integrated circuit manufactured by Fairchild Semiconductor. It utilizes advanced silicon-gate CMOS technology to provide low power dissipation and high noise immunity while maintaining compatibility with standard 74LS logic families. The device features six independent inverters, each equipped with Schmitt trigger inputs to convert slowly changing signals into clean, crisp output waveforms. All inputs include internal diode clamps for static discharge protection. It operates within a wide supply voltage range of 2V to 6V and supports a fanout of ten LS-TTL loads.

Inverter Gates Feature Summary

• Hex inverting Schmitt trigger configuration for signal conditioning
• Advanced silicon-gate CMOS technology for low power consumption
• Internal input protection against static discharge via VCC and ground clamps
• Functionally and pinout compatible with the standard 74LS logic family

Inverter Gates Applications

• Waveform shaping and pulse generation
• Line receivers handling slow rise/fall input signals
• Oscillator circuits requiring hysteresis stability

Inverter Gates Procurement Notes

Verify the specific suffix 'SJ' against official Fairchild or onsemi documentation to confirm package type and tape/reel specifications. Ensure the component source matches the original manufacturer lineage, as Fairchild's semiconductor assets were acquired by onsemi. Cross-reference datasheet revisions to confirm electrical parameters remain consistent with current production standards.

Inverter Gates Selection Notes

Select this component when designing systems requiring robust noise immunity for digital signal inversion. The Schmitt trigger function is essential for applications involving noisy environments or signals with poor edge rates. Verify that the operating voltage falls within the 2V to 6V range and that the load requirements do not exceed the specified fanout capabilities for the target logic family.

Inverter Gates Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. The 74HC14 specifically provides hex inverting Schmitt triggers, distinguishing it from the standard non-hysteretic 74HC04. The 'MM' prefix typically denotes military or enhanced grade variants in Fairchild's nomenclature, though verification of the exact grade is required through official datasheets.