16-bit bus driver for mixed-voltage boards
The Nexperia 74ALVCH16244DL,112 is a 16-bit non-inverting buffer with 3-state outputs, part of the 74ALVCH family of low-voltage CMOS logic. It is designed for bus-oriented applications where four independent 4-bit buffers share a common output-enable per bank. The 1.2V to 3.6V supply range lets it bridge 1.8V core logic to 3.3V peripheral buses without a level translator — a common need on mixed-voltage PCBs in telecom line cards and industrial controllers.
24mA drive — enough for short traces, not backplanes
Each output sources or sinks 24mA, symmetric high and low. That is typical for ALVC buffers: it drives a few centimetres of PCB trace or a handful of CMOS loads cleanly, but do not expect it to push a 50Ω backplane or a long ribbon cable. For longer runs or higher capacitive loads, step up to a 74ALVCH16244 with higher drive or add a bus transceiver. The 3-state outputs let multiple drivers share a bus line without contention — pull the output-enable high to put all outputs into high-impedance.
Package and temperature: shelf-stable for MRO stock
Housed in a 48-BSSOP (7.50mm width) — the same footprint as a standard 48-SSOP. The body is wide enough for manual probing and rework with a hot-air station. ROHS3 compliant, so no conflict with current assembly lines.
Nexperia lists the 74ALVCH16244DL,112 as Active. That means no last-time-buy window to track, no EOL notice to file. If you are managing a long-life product, the 74ALVCH family has broad second-source coverage across TI, Nexperia, and others, so supply risk is low.