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What is the speed for fast mode?

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in IOT by (70.0k points)
What is the speed for fast mode?

(a) 100 kbit/s

(b) 3.4 Mbit/s

(c) 150 kbit/s

(d) 200 kbit/s

The question was asked in exam.

Asked question is from I2C Protocol in portion Internet Principles of IOT

1 Answer

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Right answer is (b) 3.4 Mbit/s

To elaborate: High speed mode is compatible with normal I2C devices on the same bus, but requires the master have an active pull-up on the clock line which is enabled during high speed transfers.

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