The 1 ns propagation delay is the headline timing spec. In a backplane or memory-interface latch, 1 ns adds negligible skew to the bus timing budget — the designer can treat it as near-zero for clock rates up to several hundred megahertz. Combined with 24 mA symmetric output drive, the latch can drive moderate capacitive loads on a short PCB trace without needing a separate buffer.
The 20-TSSOP package saves board area compared to wide-body SOIC — about 4.4 mm body width — and the surface-mount footprint matches standard pick-and-place assembly.