Q&A Sheet 17

Question: What bus speeds are available with I2C?

The bus speed for I2C was increased over the years. The following modes are available:

  • Standard mode, with a bit rate up to 100kbit/s
  • Fast-mode, with a bit rate up to 400 kbit/s
  • High-speed mode (Hs-mode), with a bit rate up to 3.4 Mbit/s

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