The present invention relates to an electronic controller including an input means (4) for fetching an external signal and performing an input process such as A-D conversion, an operation means (2), upon receipt of processing results of the input means (4), for executing operations according to a predetermined program, an output means (6) for performing the output process for a signal to the outside on the basis of the operation results of the operation means (2), and a timer means (5) for outputting at least two of an input process start signal for starting the input process by the input means (4), an output process start signal for starting the output process by the output means (6), and an operation start signal for starting the operation by the operation means (2).