PCA21125T/Q900/1,1 datasheet by NXP Semiconductors

PCA21125T/Q900/1,1 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for PCA21125T/Q900/1,1?
  The maximum operating temperature range for PCA21125T/Q900/1,1 is -40°C to 125°C.
• How do I configure the PCA21125T/Q900/1,1 for I2C or SMBus interface?
  The PCA21125T/Q900/1,1 can be configured for I2C or SMBus interface by setting the appropriate values in the control register. Refer to the datasheet for specific register settings.
• What is the maximum clock frequency supported by PCA21125T/Q900/1,1?
  The maximum clock frequency supported by PCA21125T/Q900/1,1 is 400 kHz for I2C and 100 kHz for SMBus.
• How do I handle bus contention and arbitration in PCA21125T/Q900/1,1?
  The PCA21125T/Q900/1,1 has built-in bus contention and arbitration mechanisms. The device can detect bus contention and will automatically retry the transaction. For arbitration, the device uses a fairness algorithm to ensure equal access to the bus.
• What is the power consumption of PCA21125T/Q900/1,1?
  The power consumption of PCA21125T/Q900/1,1 is typically 1.5 mA (I2C) or 2.5 mA (SMBus) at 3.3V supply voltage.