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54LS20
Dual 4-Input NAND Gate
TL/F/6355
54LS20/DM54LS20/DM74LS20
Dual
4-Input
NAND
Gates
June 1989
54LS20/DM54LS20/DM74LS20 Dual 4-Input NAND Gates
General Description
This device containstwo independent gates eachof which
performsthe logic NAND function.
Features Alternate Military/Aerospace device (54LS20)is avail-
able. Contacta National Semiconductor Sales Office/
Distributorfor specifications
Connection Diagram
Dual-In-Line Package
TL/F/6355–1
Order Number 54LS20DMQB, 54LS20FMQB,54LS20LMQB,
DM54LS20J, DM54LS20W,DM74LS20Mor DM74LS20N
See NSPackage Number E20A, J14A, M14A, N14A orW14B
Function Tablee ABCD
Inputs Output C D Y X L H L X H X X H X X H H H LeHigh Logic LeveleLow Logic Levele EitherLow orHighLogicLevel
C1995National SemiconductorCorporation RRD-B30M105/PrintedinU.S.A.
