How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
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1.8 V<br />
1.5 V<br />
1.2 V<br />
1.0 V<br />
V CORE<br />
I 2 C <strong>Bus</strong> Bi-Directional Voltage<br />
CPU I/O<br />
Level Translation<br />
GTL2002<br />
GND<br />
SREF<br />
S1<br />
Semiconductors 64<br />
GREF<br />
DREF<br />
D1<br />
S2 D2<br />
• Voltage translation between any voltage from<br />
1.0 V to 5.0 V<br />
• Bi-directional with no direction pin<br />
• Reference voltage clamps <strong>the</strong> input voltage<br />
with low propagation delay<br />
• Application Note AN10145<br />
200 K巨<br />
V CC<br />
5 V<br />
Chipset I/O<br />
– GTL2000 22-Bit<br />
– GTL2002 2-Bit<br />
– GTL2010 10-Bit
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