PCA8574AD,518 datasheet by NXP Semiconductors

PCA8574AD,518 Frequently Asked Questions (FAQs)

• What is the maximum frequency of the I2C bus that PCA8574AD,518 can support?
  The PCA8574AD,518 can support I2C bus frequencies up to 400 kHz.
• How many GPIO pins can be controlled using PCA8574AD,518?
  The PCA8574AD,518 has 8 GPIO pins that can be controlled.
• Can PCA8574AD,518 be used as a GPIO expander for microcontrollers?
  Yes, PCA8574AD,518 can be used as a GPIO expander for microcontrollers, allowing them to control more peripherals.
• What is the power consumption of PCA8574AD,518?
  The power consumption of PCA8574AD,518 is typically around 1.5 mA at 3.3V supply voltage.
• Is PCA8574AD,518 compatible with 5V systems?
  No, PCA8574AD,518 is not compatible with 5V systems. It operates at a supply voltage range of 2.3V to 3.6V.