Texas Instruments 20-SOIC SN74HC240DWE4

The SN74HC240DWE4 is a quad 3-state buffer/line driver from Texas Instruments, belonging to the high-speed CMOS 74HC logic family. This device consists of four individual buffers with three-state outputs that can be enabled or disabled using an output enable (OE) input. When OE is low, data from the A inputs is non-inverted and passed to the corresponding Y outputs. When OE is high, the outputs become high-impedance, effectively disconnecting from the circuit. Packaged in a small SMD form factor, it's suitable for digital applications requiring controlled signal driving, such as memory address drivers or bus-oriented transmitters/receivers.