View mc74hc259a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Product Preview MC54/74HC259A 8-Bit Addressable Latch 1-of-8 Decoder J SUFFIX High–Performance Silicon–Gate CMOS CERAMIC PACKAGE 16 CASE 620–10 The MC54/74HC259A is identical in pinout to the LS259. The device 1 inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. N SUFFIX The HC259A has four modes of operation as shown in the mode selection PLASTIC PACKAGE 16 table. In the addressable latch mode, the data on Data In is written into the CASE 648–08 addressed latch. The addressed latch follows the data input with all 1 non–addressed latches remaining in their previous states. In the memory D SUFFIX mode, all latches remain in their previous state and are unaffected by t