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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/749580/tca9539-400khz-support-for-1-8v-domain
您好!
我们计划使用您的 GPIO 扩展器之一 TCA9539、这是否在1.8V 电压域下支持400kHz I2C 频率。
谢谢、
R.Rohith yadav