74LS20 Datasheet | National Semiconductor

54LS20 DM54LS20 DM74LS20 Dual 4-Input NAND Gates June 1989 54LS20 DM54LS20 DM74LS20 Dual 4-Input NAND Gates General Description This device contains two independent gates each of which performs the logic NAND function Features Alternate Military Aerospace device (54LS20) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6355 - 1 Order Number 54LS20DMQB 54LS20FMQB 54LS20LMQB DM54LS20J DM54LS20W DM74LS20M or DM74LS20N See NS Package Number E20A J14A M14A N14A or W14B Function Table Y e ABCD Inputs A X X X L H B X X L X H C X L X X H D L X X X H Output Y H H H H L H e High Logic Level L e Low Logic...