PCA8574APW,112 datasheet by NXP Semiconductors

PCA8574APW,112 Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA8574APW,112 can support?
  The PCA8574APW,112 can support I2C bus frequencies up to 400 kHz.
• Can PCA8574APW,112 be used in 5V systems?
  Yes, PCA8574APW,112 is 5V tolerant, but it operates at a maximum voltage of 3.6V. It can be used in 5V systems with proper voltage translation.
• How many GPIOs can be expanded using PCA8574APW,112?
  PCA8574APW,112 can expand up to 8 GPIOs.
• Is PCA8574APW,112 compatible with other I2C devices on the same bus?
  Yes, PCA8574APW,112 is compatible with other I2C devices on the same bus, but it requires a unique address to avoid address conflicts.
• What is the power consumption of PCA8574APW,112?
  The power consumption of PCA8574APW,112 is typically 1.5 μA in standby mode and 1.5 mA in active mode.