8 mA per output — sizing the load budget
Each of the eight outputs sources or sinks 8 mA. That's typical for a 5V logic buffer and drives one or two standard CMOS inputs per line without external line drivers. If your bus needs to drive a higher fan-out or a long trace, plan on a single buffer per signal or add a line driver stage — the 8 mA rating is the per-pin ceiling, and the package thermal limit is the aggregate constraint.
Package and footprint — 20-SOIC wide-body
No special thermal management is needed at the 8 mA output level.