View mc74hc241a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC54/74HC241A Octal 3-State Noninverting Buffer/Line Driver/ J SUFFIX Line Receiver CERAMIC PACKAGE 20 High–Performance Silicon–Gate CMOS CASE 732–03 1 The MC54/74HC241A is identical in pinout to the LS241. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. N SUFFIX This octal noninverting buffer/line driver/line receiver is designed to be PLASTIC PACKAGE 20 used with 3–state memory address drivers, clock drivers, and other CASE 738–03 1 sub–oriented systems. The device has noninverted outputs and two output enables. Enable A is active–low and Enable B is active–high. DW SUFFIX The HC241A is similar in function to the HC244A and HC240A. 20 SOIC PACKAGE •