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https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/822266/tms320f280048-supply-voltage-for-gpio-in-open-drain-output-mode
器件型号：TMS320F280048
您好！
将 F28004x GPIO 引脚配置为开漏输出模式时、是否可以通过上拉寄存器提供5V 电源、而不是3.3V？
此致、
－Shibata
否、我不认为它们可耐受5V 电压。
好的、谢谢！
