How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
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Changing I 2 C bus signals for Opto-isolation<br />
3.3/5V<br />
SCL<br />
3.3/5V<br />
SDA<br />
P82B96<br />
• Low cost Optos can be<br />
directly driven (10-30mA)<br />
• Controlling equipment on phone lines<br />
Vcc 1 Vcc 2 SCL<br />
4N36 Optos for ~5kHz<br />
6N137 for 100kHz<br />
HCPL-060L for 400 kHz<br />
• AC Mains switches, lamp dimmers, power supplies<br />
• Isolating medical or industrial equipment<br />
Semiconductors 79<br />
SDA