3.3V bus buffer with 64 mA sink — what it buys the backplane
The Texas Instruments SN74LVTH244ADWR is a non-inverting octal buffer with 3-state outputs from the 74LVTH family, designed to drive heavily loaded backplane or memory-mapped buses at 3.3 V. The two-element, four-bit-per-element organization maps cleanly onto an 8-bit data bus or two independent 4-bit control groups.
The 20-SOIC wide-body (0.295", 7.50 mm width) footprint is a standard for octal bus functions; the Tape & Reel option (TR) matches automated pick-and-place lines, while Cut Tape (CT) lets prototype runs avoid full-reel commitment.
The date-code and marking consistency should trace cleanly back to TI's authorized chain — the laser etch on a genuine unit matches the 74LVTH family marking standard, and the 20-SOIC body is a common enough package that re-marking is rare but still worth a visual check on any broker-sourced reel.
For volume BOMs, the active lifecycle means multi-year supply without redesign pressure, but the 3-state output and 32/64 mA drive are the specs that confirm fit for your bus load, not just the part number.