Texas Instruments Logic - Buffers, Drivers, Receivers, Transceivers SN74ALS645ADWR

The SN74ALS645ADWR is a bidirectional octal bus transceiver designed for asynchronous two-way communication between data buses. It features true logic with 3-state outputs, allowing for flexible data transmission from the A bus to the B bus or vice versa, controlled by the direction-control (DIR) input. The output-enable (OE) input can disable the device, effectively isolating the buses. This device operates with a supply voltage range of 4.5V to 5.5V and is characterized for operation from 0¬8C to 70¬8C. It supports a maximum low-level output current (IOL) of 24 mA, with an option for a higher IOL of 48 mA in the -1 version. The transceiver is available in a 20-pin SOIC package, making it suitable for high-density applications. Engineers may consider this product for projects requiring reliable data bus communication with the capability of isolating buses when not in use.