74HCT259D is an 8-bit addressable latch that combines demultiplexer and latch functions for selective data storage and routing. It belongs to the 74HC/HCT259 family, supports 2.0 V to 6.0 V supply operation, and is specified for −40 °C to +125 °C in a SO16 plastic small-outline package by Nexperia B.V.