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How the I2C Bus Works - EEWeb

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I 2 C <strong>Bus</strong> repeater (PCA9515) and Hub (PCA9516)<br />

PCA<br />

Master<br />

Master<br />

9515<br />

Hub<br />

9515<br />

Hub 1<br />

1<br />

PCA<br />

9516<br />

Application Note AN255<br />

Hub 2<br />

Hub 3<br />

Hub 4<br />

Hub Hub 5<br />

5<br />

Semiconductors<br />

PCA9515 and PCA9516 were designed to isolate up to 400 pF on each segment and uses an<br />

offset VOL to allow bi-directional signaling without use of a direction pin. They were not<br />

designed to operate on <strong>the</strong> same bus since a low signal is not passed through two devices.<br />

67

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