| 摘要 |
In a semiconductor device, low-level signals are output from a terminal voltage detecting circuit when the connection between an external terminal and a resistor is cut off, or when the connection between the resistor and a ground voltage is cut off, or when the external terminal short-circuits to the ground voltage. Accordingly, a PMOS transistor is turned on so that an oscillating circuit stops oscillating and outputs high-level signals from its output terminal. |
