PCF8534AU/DA/1,026 datasheet by NXP Semiconductors

PCF8534AU/DA/1,026 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCF8534AU/DA/1,026?
  The recommended operating voltage range for PCF8534AU/DA/1,026 is 2.5V to 5.5V.
• How do I ensure reliable communication with the PCF8534AU/DA/1,026 over I2C?
  To ensure reliable communication, make sure to use a pull-up resistor on the SCL and SDA lines, and ensure the I2C clock frequency is within the recommended range of 10 kHz to 400 kHz.
• What is the maximum clock frequency for the PCF8534AU/DA/1,026?
  The maximum clock frequency for the PCF8534AU/DA/1,026 is 400 kHz.
• How do I handle the power-on reset (POR) and brown-out detection (BOD) features of the PCF8534AU/DA/1,026?
  The POR and BOD features are enabled by default. To handle them, ensure that your system design includes a power-on reset circuit and a brown-out detection mechanism to prevent unwanted resets.
• What is the purpose of the internal oscillator in the PCF8534AU/DA/1,026?
  The internal oscillator is used to generate the clock signal for the device. It can be used as a clock source for the I2C interface and other internal functions.