| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor device incorporating an analog/digital converter, which can be tested while a permissible error is set in a short time at a low cost. SOLUTION: An input port 105 receives the upper limit and the lower limit of a error tolerance range for analog/digital conversion. An analog/digital converter 102 applies analog/digital conversion to a received analog voltage and outputs digital data. A propriety discrimination section 103 discriminates whether or not the digital data are included within the error tolerance range. The propriety discrimination result is outputted from an output port 104. Since the configuration of discriminating the propriety taking the tolerable error into account is provided in inside the semiconductor device is this way, the propriety discrimination processing conventionally complicated can be simplified and the test time and the cost can be reduced.
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