Home
Electronics
Portable Electronic Devices
Personal Digital Assistant / Handheld PCs Accessories
SQUARE D
Item#: 9SIC6W1KZJ8249

$31^.99

Free 30-day Returns

Limit 99999 per customer.

Ships from China.

Sold by EmpressTech

Shipped by EmpressTech

Price alert

Add to Wish List

Meet Your Seller

EmpressTech

See Seller Store

Main image of MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 2 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 3 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 4 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 5 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 6 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Alt view image 7 of 7 - MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Shop All SQUARE D Products | Visit EmpressTech Store

MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels

Be the first to review this product...

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

Overview

Specs

Reviews

Any questions? Our AI beta will help you find out quickly.

Try me now

Product description 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: PH 2.0 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: 2.0 mm See More

Additional Information
First Listed on Newegg	June 23, 2026

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
CONTACT

Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by EmpressTech Return Policy

Manufacturer Contact Info

For a directory of all our manufacturers, please click below.
Manufacturers Directory

Item#: 9SIC6W1KZJ8249