The 3-state output lets you float the bus when the output enable is deasserted, which is standard for shared data lines in mixed-voltage or multiplexed backplanes.
The supply range of 2.7V to 3.6V covers the common 3.3V rail with margin for regulation droop. The output drive is asymmetric: 32 mA source, 64 mA sink. That sink figure is the one to watch when driving LED arrays, relay coils through a transistor, or a capacitive bus — the 64 mA per pin lets you fan out to multiple CMOS loads without external buffers. The 8-bit width matches an 8-bit data bus or a set of control lines that need to be gated together.
Package and temperature — board-level fit
Surface-mount assembly with no special thermal management needed at these drive levels.