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Item #:
215530303
MCP23017 16-bit I2C I/O Expander IC Module
Item #:
215530303
TTD 104
Price Details
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Order now and get it around Saturday, August 08
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16-bit bidirectional GPIO supports independent input/output configuration; perfect for smart home and IoT applications.
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What Stands Out
16-bit Expansion
The MCP23017 allows for easy expansion of microcontroller I/O ports by 16 additional pins, enhancing project capabilities without the need for multiple chips.
I2C Interface
Designed with an I2C communication protocol, it facilitates simple connections and multiple device handling on a single bus, making it ideal for complex applications.
Flexible Configuration
Configurable for input or output modes per pin, the MCP23017 accommodates diverse project requirements, providing versatility for varied electronics applications.
Product Details
| Item Weight | 0.1 lbs (50 grams) |
Who Should Buy?
-
Hobbyist Developers
Ideal for hobbyists looking to expand I/O capabilities in DIY electronics projects with easy interfacing.
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Arduino Users
Perfect for Arduino users needing to add multiple inputs and outputs with I2C communication functionality.
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Sensor Integration
Suitable for projects needing to connect several sensors simultaneously, enhancing the functionality and efficiency.
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High-Power Applications
Not suitable for applications requiring high power or voltage levels above the IC's specifications.
Product Description
MCP23017 16-bit I2C I/O Expander IC Module
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Customer Questions & Answers
-
Question:
How to set I²C address?
Answer: Configure A0/A1/A2 pins (e.g., all grounded = address 0x20). -
Question:
How to enable pull-up resistors?
Answer: Set the GPPU register bit (e.g., write 0xFF to GPPUA for port A pull-up). -
Question:
Can it drive relays directly?
Answer: Yes, it can drive relays directly with a 25mA pin output but add buffers for high-power loads.
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TTD 104
Order now and get it around Saturday, August 08
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Features & Benefits
- 16-bit bidirectional GPIO with 8-bit PORTA and PORTB.
- Drive capability of 25 mA per pin for direct connection to LEDs and relays.
- Wide operating voltage of 1.8V to 5.5V, reliable even in extreme temperatures.
- Low standby current of less than 1 µA ensures energy efficiency.
- Easy address setup with three pins allows cascading up to 8 devices.
- Compatible with popular platforms like Arduino, Raspberry Pi, and more.
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