SN74LV1T125DBVR

SN74LV1T125DBVR is a single bus buffer with a 3-state output from TI's LV1T single-supply level-translation family, in a five-pin SOT-23 (DBV) package. The selection point is translation without a second supply pin: the input thresholds are referenced to a lowered, TTL-style level, so with one 1.65 V to 5.5 V rail the gate accepts signals from a higher-voltage domain and re-drives them at its own rail, or buffers same-domain signals, at data rates up to 150 Mbps. That makes it the standard one-gate fix where a 5 V sensor output meets a 3.3 V or 1.8 V controller input, with the output enable providing a clean disconnect for shared lines and power sequencing. Inputs are 5 V tolerant, and the family is specified over the full -40 °C to +125 °C range for industrial placements. Selection advice: this is a unidirectional buffer, not a transceiver — a line that must carry data in both directions needs a dual-supply transceiver instead. For a translation point that never needs to float, the LV1T34 sibling in the same SOT-23 footprint drops the enable pin and simplifies the net. Parameters verified against Texas Instruments documentation.