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How the I2C Bus Works - EEWeb

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I 2 C Switches: Voltage Level Shifting<br />

MASTER<br />

MASTER<br />

I 2 C device<br />

1<br />

I 2 C device<br />

2<br />

Devices supplied by 5V<br />

PCA9543<br />

I 2 C<br />

SWITCH<br />

I 2 C device<br />

1<br />

I 2 C device<br />

3<br />

I 2 C device<br />

4<br />

I 2 C device<br />

2<br />

I 2 C device<br />

4<br />

I 2 C device<br />

5<br />

Devices supplied by 3.3V<br />

I 2 C device<br />

5<br />

I 2 C device<br />

3<br />

5V bus<br />

3.3V bus<br />

Semiconductors 57

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