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https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1494744/sn3257-q1-if-sn3257-is-powered-with-1-8v-can-sel-pin-use-3-3v
工具与软件：
如果 SN3257由1.8V 电压供电、CAN SEL 引脚使用3.3V？μ A
所引用的描述谈到了模拟 I/O 信号电压范围。
控制引脚电压范围由 VSEL 指定、始终允许高达5.5V
