View mc74hc158a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC74HC158A Advance Information Quad 2-Input Data Selector/Multiplexer High–Performance Silicon–Gate CMOS N SUFFIX The MC74HC158A is identical in pinout to the LS158. The device PLASTIC PACKAGE 16 inputs are compatible with Standard CMOS outputs; with pullup resistors, CASE 648–08 they are compatible with LSTTL outputs. 1 These devices route 2 nibbles (A or B) to a single port (Y) as deter- mined by the Select input. The data is presented at the outputs in inverted D SUFFIX form for the HC158A. A high level on the Output Enable input sets all four 16 SOIC PACKAGE Y outputs to a high level for the HC158A. CASE 751B–05 1 • Output Drive Capability: 10 LSTTL Loads DT SUFFIX • Outputs Directly Interface to CMOS, NMOS and TTL 16 TSSO