14-TSSOP footprint and supply range — the board-fit story
The SN74LVC125AIPWREP: Each of the four elements handles one bit, and the 3-state control lets you float the outputs when the bus is driven by another device. The 24 mA source and sink capability at both rails means it can drive a lightly loaded bus or a handful of CMOS inputs on the same trace.
24 mA drive and 3-state — what the ratings mean on the bench
The 24 mA output drive at both high and low levels is symmetrical — the buffer sources and sinks the same current, so rise and fall times match across the supply range. For a 50 pF load at 3.3 V, the propagation delay stays under 4.5 ns typical; the 3-state disable time is similar, which matters when multiple buffers share a bus and the turn-off needs to happen before the next device drives. The 14-TSSOP package has a 0.65 mm pitch — a standard fine-pitch soldering profile works, but the narrow leads need a clean stencil aperture to avoid solder bridging on the inner pins.