Pull-up resistor

nRF54L15 | nRF54L10 | nRF54L05 Datasheet

1000 kbps bit rate is supported when using H0D1 drive strength, 1 kΩ pull-up resistor, and maximum 50 pF bus capacitance. For other bit rates, see the following figure.

Figure 7. Recommended TWIM pull-up value vs. line capacitance
Recommended TWIM pullup value vs. line capacitance
  • The I2C bus specification allows a maximum line capacitance of 400 pF.
  • The value of internal pull-up resistor (RPU) for nRF54L15/10/05 can be found in GPIO — General purpose input/output.