SN74AHC1G14/SN74AHC1G14-Q1 Inverter Gate Texas Instruments SN74AHC1G14/SN74AHC1G14-Q1 Inverter Gate performs the Boolean function Y = A in positive logic. The device functions as an independent inverter gate, but because of the Schmitt action, gates may have different input threshold levels for positive (VT+) and negative-going (VT−) signals. Typical applications include barcode scanners, cable solutions, e-books, embedded PCs, field transmitters, fingerprint biometrics, and many more. The Texas Instruments SN74AHC1G14-Q1 devices are AEC-Q100 qualified for automotive applications.