SCES693G February 2008 – May 2021 SN74AVC4T774
The SN74AVC4T774 is a 4-bit, dual-supply, noninverting, bi-directional voltage level translation. Pins An and control pins (DIR1, DIR2, DIR3, DIR4 and OE) are support by VCCA and pins Bn are support by VCCB. The A port is able to accept I/O voltages ranging from 1.1 V to 3.6 V, while the B port can accept I/O voltages from 1.1 V to 3.6 V. A high on DIR allows data transmission from An to Bn and a low on DIR allows data transmission from B to A when OE is set to low. When OE is set to high, both An and Bn are in the high-impedance state.