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Adafruit PCF8575 I2C Expander
Adafruit
An I2C expander board with 16 GPIO pins, allowing for additional input/output capabilities.
In stock
Specifications
2- I2c Address
- 0x20 (configurable via jumpers) or 0x21-0x27 (based on jumper settings)
- Gpio Count
- 16
Pinout
4| Pin | Name | Functions | Notes |
|---|---|---|---|
| VIN | Power | POWER | Same logic level as the microcontroller's power supply |
| GND | Ground | GND | Common ground for power and logic |
| SCL | I2C Clock | I2C | Same logic level as the VIN pin, with a 10K pullup resistor |
| SDA | I2C Data | I2C | Same logic level as the VIN pin, with a 10K pullup resistor |
Interactive pinout
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BOARD
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