CD74HC540E Octal Buffer & Line Driver, 3-State, Inverting, 2 → 6 V, 20-Pin PDIP (DIP)

The CD74HC540E is an octal buffer and line driver with 3-state outputs, featuring inverting logic for high-speed digital applications. Housed in a 20-pin PDIP package, it operates within a 2 V to 6 V supply range, making it suitable for standard 5 V and 3.3 V logic systems.

Perfect for breadboard prototyping, this component is typically used to boost drive current for microcontroller outputs (such as Arduino or Raspberry Pi) or to isolate data lines in bus control circuits.