SN74AUP Buffers, Buffer / Drivers, and Flip Flops The Texas Instruments SN74AUP family of buffers, buffer / drivers, and flip flops is TI´s premier solution to the industry's low-power needs in battery-powered portable applications. The TI SN74AUP family ensures a very low static and dynamic power consumption across the entire Vcc range of 0.8V to 3.6V, resulting in increased battery life. The low-power TI SN74AUP family also maintains excellent signal integrity.