View mc74hc240a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC54/74HC240A Octal 3-State Inverting Buffer/ Line Driver/Line Receiver High–Performance Silicon–Gate CMOS J SUFFIX CERAMIC PACKAGE 20 The MC54/74HC240A is identical in pinout to the LS240. The device CASE 732–03 inputs are compatible with standard CMOS outputs; with pullup resistors, 1 they are compatible with LSTTL outputs. This octal noninverting buffer/line driver/line receiver is designed to be N SUFFIX used with 3–state memory address drivers, clock drivers, and other PLASTIC PACKAGE sub–oriented systems. The device has inverting outputs and two active–low 20 CASE 738–03 output enables. 1 The HC240A is similar in function to the HC241A and HC244A. DW SUFFIX • Output Drive Capability: 15 LSTTL Loads 20 SOIC PACKAGE 1 •