PCF8574 - GPIO pin expander - I2C - STEMMA QT/Qwiic - Adafruit 5545

Brand: Adafruit
Product Code: AN-21909
Availability: 4-6 business days
Planned delivery date after ordering: 2025-05-06
10.40€
Ex Tax: 8.60€

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A lead expander by Adafruit equipped with the PCF8574 chip. It has 8 analog I/O GPIO pins, thanks to which increases the design possibilities of the modules used. It communicates via the I2C bus and has 3 configurable interface addresses. The expander supply voltage is in the range of 3 V to 5 V DC.

Specification:
  • Type: GPIO pins expander
  • Built-in chip: PCF8574
  • Number of I/O: 8
  • Communication interface: I2C bus
  • Interface address: 0x20
  • Supply voltage: 3 V to 5 V DC
  • Conclusions:
    • STEMMA QT/Qwiic connectors
    • solder pads (goldpin connectors for self-soldering are included in the set)
  • Module dimensions: 25.5 x 17.7 x 4.6 mm
  • Weight: 1.7 g
Set includes:
  • PCF8574 - GPIO pins expander - I2C - STEMMA QT/Qwiic - 1 pcs
  • Goldpin strip 1x16 pin - 2.54 mm raster - 1 pcs