Fixed Polarity vs Mixed Polarity
NAND, AND
- Fixed: (AB)’ is read as “ A nand B”
- Mixed: (AB) (L) is read “ A and B, low true”.
NOR, OR
- Fixed: (A+B)’ is read as “A nor B”
- Mixed: (A+B) (L) is read “ A or B, low true”.
NOT
- Fixed: (A)’ is read as “NOT A”
- Mixed: (A) (L) is read as “A, low true “