Fundamental Operations
Fundamental Operations
POSITIVE LOGIC ("Active High"):
True = Logic1 (high V), False = Logic0 (low V)
NOTATION:
NOT (Negation, complementation, inversion)AND: Switches in series, "product"Z = X•Y, Z = X^Y, Z = X Ç Y, X = X & Y (note: Z = XY should be avoided - is it X•Y or a signal named "XY"?)
OR: Switches in parallel, "sum"Z = X+Y, Z = X V Y, Z = X U Y, Z = X | Y
XOR: Exclusive OR - either X or Y but not bothZ = X Å Y; (XNOR or EQ: Z = X • Y = X Å Y )
X
Y
X
Y