General Description
These octal bus transceivers are designed for asynchronous
two-way communication between data buses. The
control function implementation minimizes external timing
requirements.
The device allows 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 enable
input (G) can be used to disable the device so that the
buses are effectively isolated.

Features
n Bi-Directional bus transceiver in a high-density 20-pin
package
n 3-STATE outputs drive bus lines directly
n PNP inputs reduce DC loading on bus lines
n Hysteresis at bus inputs improve noise margins
n Typical propagation delay times, port-to-port 8 ns
n Typical enable/disable times 17 ns
n IOL (sink current)
24 mA
n IOH (source current)
-15 mA