HiLetgo 2pcs PCF8575 IO Expansion Board I2C IIC 16 IO Ports I/O Extension Shield 16 Bits SMBus I/O Ports
Product details
| Management number | 250254356 | Release Date | 2026/09/17 | List Price | US$3.20 | Model Number | 250254356 | ||
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Descriptions: Have you run out of I/O pins? This great module allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins. On board 3.3V level converter circuit, if you donot solder VCC-VDD pad, the PCF8575 level is 3.3V. If you solder it, the level will be the same with VCC. Features: Main chip: PCF8575 Working voltage: 2.5 - 5.5V DC Working current: 100mA(MAX) I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads. 16 individually addressable pins. Each pin configurable for input or output. Open-drain interrupt output pin for input change interrupt. Great for UNO R3 and other MCU to control simple relay, buzzer, button, LED etc. Package included: 2 x PCF8575 IO Expansion Boards
- PCF8575 IO Expansion Board I/O Extension Shield I2C IIC
- 16 IO Ports, with16 individually pins
- Open-drain interrupt output pin for input change interrupt.
- Great for UNO R3 and other MCU to control simple relay, buzzer, button, LED etc
| ASIN | B0CDWTC399 |
|---|---|
| Brand | HiLetgo |
| Style Name | Classic |
| Unit Count | 2 Count |
| Manufacturer | HiLetgo |
| Model Number | PCF8575 |
| Mfr Part Number | 3-01-1813 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Operating System | Windows, macOS, Linux |
| Compatible Devices | Arduino UNO R3, Microcontroller, Relay, Buzzer, Button, LED, Other MCUs |
| Hardware Interface | Serial Interface |
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