The
AND gate is a basic digital
logic gate that implements
logical conjunction - it behaves according to the
truth table to the right. A HIGH output (1) results only if both the inputs to the AND gate are HIGH (1). If neither or only one input to the AND gate is HIGH, a LOW output results. In another sense, the function of AND effectively finds the
minimum between two binary digits, just as the
OR function finds the
maximum. Therefore, the output is always 0 except when all the inputs are 1.