As exclusive or gate gives 1 when input variables have odd number of 1’s and equivalence gate gives 1 when there are even number of zeros in input variables So when we have 2 variables then exclusive or gate gives 1 for x=0, y=1 & x=1, y=0 and it gives 0 for x=0, y=0 & […]
Tag: logical gates
Tristate and Dual Inline Packaging (DIP)
Tristate gates: These are the special gates which give 3 kinds of outputs: low, high, high impedance (Z). Such gates have an extra input which is called enable input. When enable input is high, switch is closed & tristate buffer act as a normal buffer and when enable input is low output is high impedance […]
Negated or Bubbled gates
These are those gates which have inverted inputs to the gate as shown below: Negated AND gate is actually NOR gate while negated OR gate is NAND gate which can shown from the truth tables of Negated OR & Negated AND gate and from algebraic equations also. NEGATED AND can also be called invert-AND and NEGATED OR can be called […]