PCAL9539APW,118 datasheet by NXP Semiconductors

PCAL9539APW,118 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for PCAL9539APW,118?
  The recommended operating voltage range for PCAL9539APW,118 is 1.65V to 5.5V.
• How do I configure the I2C address of the PCAL9539APW,118?
  The I2C address of the PCAL9539APW,118 can be configured by connecting the A0, A1, and A2 pins to VCC or GND. The address is determined by the voltage level on these pins.
• What is the maximum frequency of the I2C bus for PCAL9539APW,118?
  The maximum frequency of the I2C bus for PCAL9539APW,118 is 400 kHz.
• How do I reset the PCAL9539APW,118?
  The PCAL9539APW,118 can be reset by pulling the RESET pin low for at least 1 ms.
• What is the maximum current sourcing capability of the PCAL9539APW,118?
  The maximum current sourcing capability of the PCAL9539APW,118 is 25 mA per output pin.