| 摘要 |
A circuit apparatus having an electrostatic discharge (ESD) protection function includes a first circuit module, a second circuit module, and a thick-oxide transistor. The first circuit module operates in a first power supply domain and includes at least a first transistor. The second circuit module operates in a second power supply domain different from the first power supply domain and includes at least a second transistor. The thick-oxide transistor has a control terminal for receiving a control signal, a first terminal coupled to the first circuit module, and a second terminal coupled to the second circuit module, and the thick-oxide transistor is utilized for selectively performing an ESD protection operation according to the control signal.
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