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MCP23017 IO Expansion Board, Expands 16 I/O Pins
$6.9
Brand：Spotpear
SKU：0102120
Date：2022-04-08 16:05
Part Number：
MCP23017 IO Expansion Board, Expands 16 I/O Pins
Overview
The MCP23017 IO Expansion Board expands 2 signal pins as 16 I/O pins based on the I2C bus, up to 8 MCP23017 IO Expansion Board can be used at the same time, providing up to 128 I/O pins, it is compatible with both 3.3V and 5V levels.
Features
- I2C controlled, expands 2 signal pins as 16 I/O pins
- I2C address configurable by shorting the A0/A1/A2 jumpers
- Provides two connector options: PH2.0 terminal and/or solder pads, allows multi I2C modules to be stacked
- Onboard voltage translator, compatible with 3.3V/5V level
- Comes with development resources and manual (examples for Raspberry Pi / micro:bit / Arduino / STM32)
Specifications
- Operating voltage: 5V/3.3V
- Interface: I2C
- Interrupt pins: INTA, INTB
- Expansion I/Os: 16
- Dimension: 38mm × 23mm
- Mounting hole size: 2.0mm
Interface Definition
| PIN | I2C |
|---|---|
| VCC | Power supply, 3.3V/5V |
| GND | Ground |
| SDA | I2C data line |
| SCL | I2C clock line |
| INTA | PA group interrupt output |
| INTB | PB group interrupt output |
Dimensions
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