IN74ACT21 Overview
TECHNICAL DATA IN74ACT21 Dual 4-Input AND Gate High-Speed Silicon-Gate CMOS The IN74ACT21 is identical in pinout to the LS/ALS21, HC/HCT21. The IN74ACT21 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. TTL/NMOS patible Input Levels Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range:.