16-bit bus buffer with a wide supply window
The SN74ALVCH16244DGGR is a 16-bit non-inverting buffer from TI's 74ALVCH family, organized as four 4-bit elements with independent 3-state output enables per bank. Symmetric 24 mA source and sink drive per output means it can fan out to multiple loads on a shared address or data bus without needing external line drivers. The 3-state outputs let multiple buffers share the same bus lines — the enable per 4-bit bank gives granular control over which section drives the bus at any cycle.
Housed in a 48-TFSOP (6.10 mm body width) and also listed with a 48-TSSOP supplier device package, this is a fine-pitch SMD part — 0.5 mm pin pitch typical for the TSSOP family. The board footprint is not compatible with wider SOIC or DIP layouts; a new PCB layout or an adapter is needed if replacing an older 16-bit buffer in a larger package.
No official second-source or successor is documented; the 74ALVCH family is a mature logic series and this variant is a standard catalog item.