Texas Instruments SN74LS245 Octal bus transceivers SN74LS245DWRG4

The SN74LS245 is an octal bus transceiver designed for asynchronous two-way communication between data buses. It features 3-state outputs that can drive bus lines directly, and PNP inputs that reduce DC loading on the bus lines. The device includes hysteresis at the bus inputs to improve noise margins and has a typical propagation delay of 8 ns from port to port. The transceiver allows data transmission from the A bus to the B bus or vice versa, depending on the logic level at the direction-control (DIR) input. Additionally, the output-enable (OE) input can disable the device, effectively isolating the buses. This product is suitable for applications in building automation, electronic point of sale, factory automation, and test and measurement. The SN74LS245 is available in various package types, including SOIC, which is relevant for space-constrained designs.