Part # 74LS21 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: 54LS21 DM54LS21 DM74LS21 Dual 4-Input AND Gates

Part Details:

54LS21DM54LS21DM74LS21 June 1989 54LS21 DM54LS21 DM74LS21 Dual 4-Input AND Gates General Description Features This device contains two independent gates each of which Y Alternate Military Aerospace device (54LS21) is avail- performs the logic AND function able Contact a National Semiconductor Sales OfficeDistributor for specifications Connection Diagram Dual-In-Line Package Dual 4-Input AND Gates TL F 6356 ­ 1 Order Number 54LS21DMQB 54LS21FMQB 54LS21LMQB DM54LS21J DM54LS21W DM74LS21M or DM74LS21N See NS Package Number E20A J14A M14A N14A or W14B Function Table Y e ABCD Inputs Output A B C D Y X X X L L X X L X L X L X X L L X X X L H H H H H H e High Logic Level

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74LS21.pdf Datasheet