The KK74ACT125 is identical in pinout to the LS/ALS125, HC/HCT125. The KK74ACT125 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. The KK74ACT125 noninverting buffers are designed to be used with 3state memory address drivers, clock drivers, and other bus-oriented systems. The devices have four separate output enables that are active-low. TTL/NMOS Compatible Input Levels Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 4.5 to 5.5 V Low Input Current: 1.0 A; 0.1 A @ 25C Outputs Source/Sink 24 mA