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 / 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
Wiki:http://www.waveshare.com/wiki/MCP23017_IO_Expansion_Board
Package Included
1* MCP23017 Board
1* Cable
Additional information
| Weight | 0.012 kg |
|---|
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