View mc74hct240a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC74HCT240A Octal 3-State Inverting Buffer/ Line Driver/Line Receiver with LSTTL-Compatible Inputs N SUFFIX PLASTIC PACKAGE High–Performance Silicon–Gate CMOS 20 CASE 738–03 1 The MC74HCT240A is identical in pinout to the LS240. This device may DW SUFFIX be used as a level converter for interfacing TTL or NMOS outputs to 20 SOIC PACKAGE High–Speed CMOS inputs. The HCT240A is an octal inverting buffer line 1 CASE 751D–04 driver line receiver designed to be used with 3–state memory address drivers, clock drivers, and other bus–oriented systems. The device has inverting outputs and two active–low output enables. SD SUFFIX 20 SSOP PACKAGE The HCT240A is the inverting version of the HCT244. See also HCT241. 1 CASE 940C–03 • Output D