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AJMRTC MCP23017 / MCP23S17 Serial Interface Module, IIC I2C SPI Bidirectional 16-Bit I/O Expander Breakout Board, 10MHz SPI Clock, GPIO Extension Module for Arduino Raspberry Pi ESP32 Electronic DIY
- - MCP23017 (I2C) / MCP23S17 (SPI) 16-bit bidirectional I/O expander module, expands GPIO quantity for microcontroller systems
- - Max 10MHz SPI clock speed; three address pins allow up to 8 modules cascaded on one bus for more IO ports
- - Comes with configurable INTA/INTB interrupt pins, supports interrupt-on-change function for signal detection
- - Wide operating voltage 1.8V-5.5V, compatible with 3.3V and 5V main control boards such as Arduino, Raspberry Pi, ESP32
- - Breadboard friendly pin header design, simple wiring, ideal for keypad matrix, LED array, relay control and electronic prototype DIY
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AJMRTC MCP23017 and MCP23S17 serial interface breakout module is a high-performance 16-bit bidirectional GPIO expander. MCP23017 adopts I2C communication, while MCP23S17 uses SPI interface with maximum 10MHz clock rate. It provides two independent 8-bit ports, every pin can be flexibly set as input or output. Equipped with configurable dual interrupt outputs to detect input state changes in real time. With 3 hardware address pins, up to 8 expanders can be cascaded on the same bus to greatly increase available GPIO resources. It supports 1.8V to 5.5V power supply, matching common 3.3V and 5V microcontrollers. This compact PCB module is easy to wire and install, widely used for button matrix, LED lighting control, relay driving and various electronic prototype development.
- Brand: AJMRTC
- Chip: MCP23017(I2C), MCP23S17(SPI)
- IO Quantity: 16 Bidirectional I/O Pins
- Max SPI Clock: 10MHz
- Communication: IIC I2C / SPI
- Operating Voltage: 1.8V ~ 5.5V
- Interrupt Pins: INTA, INTB Configurable
- Application: GPIO Expansion, Arduino, Raspberry Pi, ESP32 DIY Circuit
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Warranty
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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