Open-Smart PCF8575 IO Expander Module - 16 Extra IO pins

Do you have too few IO pins, but do you have an I2C bus at your disposal? Then you can use this module to create more (standard) pins.

Specifications:

• Supply voltage: 2.5 - 5.5V DC
• Signal voltage: 2.5 - 5.5V*
• GPIO voltage: 2.5 - 5.5V*
• Maximum GPIO input current (sink): 25mA
• Maximum GPIO output current (source): 1mA
• Maximum GPIO output current combined (sink + source): 100mA
• Number of extra IO pins: 16
• Chip: PCF8575
• Communication:
  • Interface: I2C
  • Default address: 0x20 (can be changed with A1 and A2 solder pads)
• Dimensions PCB: 33 x 21mm

*GPIO and signal voltages are 3.3V at a supply voltage (VCC) of 3.3V or higher, or equal to VCC if VCC < 3.3V. If the solder bridge VCC-VDD is connected, the GPIO and signal voltages are always equal to VCC.

Package contents:

• Open-Smart PCF8575 IO Expander Module

See following page for a library for this product: PCF8575

Check the tab "Downloads" for more information and/or downloads.