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Hello,
we are currently designing the IIC isolation interface circuit, and we plan to use ISO7742 to realize our scheme. We supply 5V power on the MCU side and 3.3V power on the slave side, may I ask how we should use this circuit?
Does SCL1 and SDA1 match MCU or slave?
您好,
这里是中文论坛,您可以使用中文发帖。
您是需要汽车级的I2C隔离器件吗?建议您看下 ISO1640-Q1、ISO1540-Q1、ISO1541-Q1
ISO7742-Q1不能应用中I2C通信中,因为I2C的SDA信号线需要是双向通信的接口,它有应答位。而ISO7742-Q1 四路接口都是单向的。