View mc74hc137 datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC74HC137 1-of-8 Decoder/Demultiplexer with Address Latch High–Performance Silicon–Gate CMOS N SUFFIX PLASTIC PACKAGE 16 The MC74HC137 is identical in pinout to the LS137. The device inputs are CASE 648–08 compatible with standard CMOS outputs; with pullup resistors, they are 1 compatible with LSTTL outputs. The HC137 decodes a three–bit Address to one–of–eight active–low D SUFFIX outputs. The device has a transparent latch for storage of the Address. Two 16 SOIC PACKAGE Chip Selects, one active–low and one active–high, are provided to facilitate CASE 751B–05 1 the demultiplexing, cascading, and chip–selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output, an