SL74HCT20 Overview
SL74HCT20 Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS The SL74HCT20 is identical in pinout to the LS/ALS20. The SL74HCT20 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:.