SN74LV1T125/SN74LV1T125-Q1 Single Buffer Gate Texas Instruments SN74LV1T125/SN74LV1T125-Q1 Single Buffer Gate is a low-voltage CMOS gate logic that operates at a wider voltage range for industrial, portable, telecom, and automotive applications. The output level is referenced to the supply voltage and can support 1.8V/2.5V/3.3V/5V CMOS levels.