These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic 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.
4.5-V to 5.5-V VCC Operation
Max tpd of 5.5 ns at 5 V
3-State Outputs Drive Bus Lines Directly
PNP Inputs Reduce dc Loading
20 pin DIP. Actual brand may vary from picture.