How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
How the I2C Bus Works - EEWeb
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I 2 C Product Characteristics<br />
• Package Offerings<br />
Typically DIP, SO, SSOP,<br />
TSSOP and/or HVQFN packages<br />
• Frequency Range<br />
Older devices 100 kHz operation<br />
Newer devices operating up to 400 kHz<br />
• Operating Supply Voltage Range<br />
2.3 to 5.5 V or<br />
3.0 to 3.6 V with 5 V tolerance<br />
• Operating temperature range<br />
Typically -40 to +85 ºC<br />
Some 0 to +70 ºC<br />
• Hardware address pins<br />
Typically three (A O, A 1, A 2) are provided to allow up to eight of <strong>the</strong><br />
identical device on <strong>the</strong> same I 2 C bus but sometimes due to pin<br />
limitations <strong>the</strong>re are fewer address pins<br />
4 mm x 4 mm<br />
24 pin 16-bit 16 bit PCA9555 shown<br />
Semiconductors 15