These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The SN74ALS640BN is characterized for operation from 0°C to 70°C.
Bidirectional Bus Transceivers
Datasheet Available:Texas Instruments SN74ALS640BN
20 pin DIP. Manufactured by Texas Instruments.