74245 IC OCTAL BUS TRANSCEIVER

These octal bus transceivers are designed for
asynchronous two-way communication between data
buses. The control-function implementation minimizes
external timing requirements.
The SNx4LS245 devices allow data transmission
from the A bus to the B bus or from the B bus to the
A bus, depending on the logic level at the directioncontrol
(DIR) input. The output-enable (OE) input can
disable the device so that the buses are effectively
isolated.