Dual-supply level translation, 4-bit wide
The Texas Instruments SN74AVC4T245DT is a 4-bit translation transceiver from the 74AVC series, built for bidirectional voltage-level shifting between two supply domains. It contains two 2-bit elements, each with independent direction control, letting a single 16-SOIC package handle mixed-voltage interfaces on the same bus. This makes the part a direct fit for bridging a 1.8 V MCU to a 3.3 V peripheral, or a 2.5 V FPGA bank to a 3.0 V sensor — no external level-shifter resistor network needed.
Output drive and temperature grade
Each output sources and sinks 12 mA at the rated supply voltage. That drive is enough to fan out to four standard 74-series CMOS loads or drive a short PCB trace directly, but it is not a bus-holder — the 3-State output lets the line float when the output enable is deasserted, so multiple transceivers can share the same data bus without contention. If the board sits in an unventilated cabinet near a power supply, the 85°C ceiling is the limit — the 12 mA drive current does not derate significantly across this band, but the junction temperature should be checked against the thermal resistance of the SOIC package in still air.
The supplier device package is also 16-SOIC, so the land pattern is the same across both identifiers. The part is offered in Tape & Reel (TR) and Cut Tape (CT) options. For a prototype run, the Cut Tape is the economical choice; for production, the reel avoids a per-unit premium and feeds the pick-and-place without a carrier-tape splice.