Eight-bit inverting bus buffer with 3-state outputs
The SN74LVTH540PW is an 8-bit inverting buffer with 3-state outputs from the 74LVTH series. Each channel sinks 64mA and sources 32mA.
Output drive and bus loading
The 32mA source and 64mA sink per output are the headline numbers for bus design. On a 3.3V backplane with 50pF per load and a 10MHz clock, the 64mA sink handles the capacitive discharge without ringing—but check the simultaneous switching output limit in the datasheet if you're toggling all eight bits at once. For a memory-address bus driving four DRAM loads, this buffer clears the fan-out without needing a secondary buffer stage.
Active lifecycle, no end-of-life risk
The SN74LVTH540PW carries an Active product status with ROHS3 compliance. There is no last-time-buy notice, no NRND flag, and no successor part announced. For a BOM line that needs a stable 8-bit inverting buffer for the next several production years, this part is a safe call—no forced redesign cycle from a sudden EOL.