The PCS74MT681 is a low-power CMOS, 1-bit bidirectional buffer from Viking Technology. It has a high performance input and output structure, and provides an integrated level-shifting circuit for logic voltage conversion. It features a single enable input for dual-rail input output transition, fast switching speed, low out-of-state power consumption, and low quiescent current. It is also designed to have a wide voltage operating range from 1.65V to 5.5V, making it suitable for a variety of applications. The PCS74MT681 is an ideal solution for buffering and level shifters in applications that are limited by space or power.