Texas Instruments 20-SOIC SN74HC245DWRE4

The SN74HC245DWRE4 is a Texas Instruments-manufactured 8-channel bus transceiver with three-state outputs. It's designed for high-speed, low-power CMOS operation and features bidirectional data transmission between two logic levels. This device has separate output enables (OE) to control each of its four pairs of buffers, allowing data to pass from the A inputs to the Y outputs when OE is low. When OE is high, the outputs become high-impedance, enabling multiple devices to share a bus. The part comes in an E4 package suitable for applications requiring parallel interfacing and level shifting while maintaining compatibility with 5V logic systems.