| 摘要 |
A high voltage tolerance circuit includes a first transistor, a second transistor, a third transistor, and a latch-up device. The first transistor and the second transistor are controlled by a control signal. The gate of the third transistor is coupled to a ground through the first transistor. The gate of the third transistor is coupled to an I/O pad through the second transistor. The third transistor is coupled between a power supply and a node. The latch-up device is coupled between the node and the I/O pad.
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