54LS21

54LS21 DM54LS21 DM74LS21 Dual 4-Input AND Gates June 1989 54LS21 DM54LS21 DM74LS21 Dual 4-Input AND Gates General Description This device contains two independent gates each of which performs the logic AND function Features Y Alternate Military Aerospace device (54LS21) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package Function Table Order Number 54LS21DMQB 54LS21FMQB 54LS21LMQB DM54LS21J DM54LS21W DM74LS21M or DM74LS21N See NS Package Number E20A J14A M14A N14A or W14B Y e ABCD Inputs A B CD X X XL X X LX X L XX L X XX H H HH H e High Logic Level L e Low Logic Level X e Either Low or High Logic Level Output Y L L L L H TL F 6356 – 1 C1995 National Semiconductor Corporation TL F 6356 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specific...