With two drivers on-chip and no receivers, it is the transmit half of a point-to-point or multidrop serial link — common in high-speed backplane, cable interconnect, and clock distribution applications where low noise and low power are priorities.
The 600 Mbps per channel rating is the raw serial bit rate the driver can sustain with a clean eye diagram. In practice, that supports a 300 MHz clock or a 600 Mbps NRZ data stream over a few metres of twisted-pair or differential stripline.
The part is no longer manufactured and has no last-time-buy window open.
Package and tape: what the kitting lead needs to know
The 8-SOIC body (0.154" width, 3.90 mm width per the package code) is a common footprint that feeds through most feeders without changeover.