16-bit bus buffer for mixed-voltage logic
The Texas Instruments SN74AVC16244DGGR is a 16-bit buffer with non-inverting, 3-state outputs from the 74AVC series. It operates across a 1.4V to 3.6V supply range, making it a natural fit for designs that bridge 1.8V, 2.5V, and 3.3V logic domains without a separate level translator. Organized as four independent 4-bit elements, it handles 16 bits of bus buffering in a single 48-pin TSSOP package.
Supply voltage range — what it means for the BOM
The 1.4V to 3.6V supply covers the three most common digital logic rails: 1.8V, 2.5V, and 3.3V. If your board has a 1.8V FPGA bank driving a 3.3V peripheral, this buffer sits between them and runs from whichever rail has the headroom. The wide range also gives margin for a regulated 3.3V rail that droops under load — the buffer keeps working down to 1.4V without corrupting the bus.
Output drive and temperature grade
Each output sources or sinks 12mA, which is enough for standard CMOS loads, short PCB traces, and typical bus fan-out of four to eight loads. The -40°C to 85°C operating range covers industrial control, telecom cabinets, and outdoor equipment that isn't under the hood. For automotive or under-hood use, you'd step to the AEC-Q100 variants in the 74AVC family.
Package and mounting
The 48-TSSOP (6.10mm body width) is a fine-pitch, 0.5mm-lead-pitch package. It's hand-solderable with a fine tip and flux, but the 0.5mm pitch means bridging is easy if the iron's too hot or the solder mask isn't clean. A hot-air station at 280°C with a small nozzle lifts it cleanly — just tack the corners first.
Lifecycle and sourcing
The SN74AVC16244DGGR is listed as Active and ROHS3 compliant.