HCC/HCF4048B
Typical Output High (source) Current Charac-
teristics.
Minimum Output high (source) Current Charac-
teristics.
APPLICATIONS OF EXPAND INPUT
ACTUAL-CIRCUIT LOGIC CONFIGURATIONS
EXPANSION LOGIC AND TRUTH TABLE
IMPLEMENTATION OF EXPAND INPUT
FOR 9 OR MORE INPUTS
OUTPUT
FUNCTION
FUNCTION
NEEDEDAT OUTPUT BOOLEAN EXPRESSION
EXPANDINPUT
NOR
OR
J = (A+B+C+D+E+F+G+H) + (EXP)
OR
OR
J = (A+B+C+D+E+F+G+H) + (EXP)
AND
NAND
NAND
NAND
J = (ABCDEFGH) ⋅ (EXP)
J = (ABCDEFGH) ⋅ (EXP)
OR/AND
OR/NAND
NOR
NOR
J = (A+B+C+D) ⋅ (E+F+G+H) ⋅ (EXP)
J = (A+B+C+D) ⋅ (E+F+G+H) ⋅ (EXP)
AND/NOR
AND J = (ABCD) + (EFGH) + (EXP)
AND/OR
AND J = (ABCD) + (EFGH) + (EXP)
Note : (EXP) designates the EXPAND function (i.e., X1 + X2 + . . XN).
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