Patent ID: 7795922

Claim:
A decoder circuit which defines selection/non-selection of an object to be controlled with an output signal, the decoder circuit comprising: a high voltage imparting portion which imparts a high voltage to a potential setting node; a low voltage setting portion which determines presence or absence of a selected state based on an input signal, and forcibly sets a voltage of the potential setting node to a low voltage lower than the high voltage during the selected state; and an output signal driving portion which outputs the output signal on a voltage level including the high voltage and the low voltage based on the voltage obtained from the potential setting node, wherein the high voltage imparting portion includes: a first switching element set to a normally-ON state to impart the high voltage to the potential setting node; and a second switching element provided independently of the first switching element, and set to an ON state in an initial predetermined period after initiation of a non-selected state to impart the high voltage to the potential setting node.