求教STM8的true open drian I/O端口的问题

张衍波

STM8的I2C端口手册上的描述如下:

(3) In the open-drain output column, "T" defines a true open-drain I/O (P-buffer, weak pull-up, and protection diode to VDD are not implemented).

问题来了,对这样的端口,能不能施加高于VDD的电压，
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