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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/987146/ucd3138-usd3138
当 TCK 或 TDO 引脚(请参阅下面的屏幕截图数据流) 被配置为推挽或开漏的输出 GPIO 时-它是否需要一个外部上拉电压/电阻器？ 谢谢、Tim
Tim、您好！
TCK 和 TDO 引脚不是漏极开路、当配置为输出 GPIO 时、无需外部上拉电阻器。
此致、
Bosheng
