Triple Schmitt-trigger inverter in a 0.9 mm pitch BGA
The Texas Instruments SN74LVC3G14YZPR is a triple inverter with Schmitt-trigger inputs from the 74LVC family. Each of its three independent inverters provides hysteresis at the input, cleaning up slow or noisy edges before the logic threshold. The part operates from 1.65 V up to 5.5 V, making it a direct drop-in for mixed-voltage boards. Outputs source and sink 32 mA, enough to drive a standard logic load or a low-power LED indicator without a buffer.
Schmitt-trigger — why it matters for the BOM
The Schmitt-trigger inputs use two separate thresholds: low-to-high at 1.4 V to 3.7 V and high-to-low at 0.3 V to 1.4 V, depending on supply. That hysteresis rejects noise on long traces or from a switch contact, so the output does not chatter. For a panel or field-wired input that sees electrical noise, this part cleans the signal without external RC filtering.