MCP23017-E/SP 16-Channel I/O Expander 5MHz IC

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৳350.00

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MCP23017-E/SP 16-Channel I/O Expander 5MHz IC

The MCP23017-E/SP is a high-performance 16-bit I²C GPIO Expander IC from Microchip, designed to add extra digital input/output pins to microcontrollers using only two I²C communication lines. It is an excellent solution when your Arduino, ESP32, Raspberry Pi, STM32, PIC, AVR, or other embedded controller runs out of GPIO pins.

Supporting up to 1.7MHz High-Speed I²C communication and operating with 1.8V to 5.5V, this IC is widely used in robotics, industrial automation, IoT devices, home automation, keypad interfaces, LCD control, LED matrix projects, relay boards, and data acquisition systems.

Students, electronics hobbyists, robotics enthusiasts, and professional embedded engineers in Bangladesh frequently use the MCP23017 for expanding GPIO capability without sacrificing valuable processor pins.

Features:

16 Programmable GPIO Pins
High-Speed I²C Communication
Supports up to 8 Devices on Same I²C Bus
Expand up to 128 GPIO Pins
Operating Voltage: 1.8V–5.5V
Built-in Pull-up Resistors
Interrupt Output Pins
Individual Pin Direction Control
Input Polarity Inversion
Fast Response Time
Low Power CMOS Design
DIP-28 Package
Industrial Temperature Range
Compatible with 3.3V and 5V Systems

Specifications:

Specification	Value
Model	MCP23017-E/SP
Manufacturer	Microchip
Device Type	16-Bit GPIO Expander
Interface	I²C
Communication Speed	Up to 1.7MHz (High-Speed I²C)
GPIO Channels	16
Operating Voltage	1.8V – 5.5V
Logic Voltage	3.3V / 5V Compatible
Interrupt Pins	2
Pull-up Resistors	Internal
Address Pins	3
Maximum Devices on Bus	8
Expandable GPIO	Up to 128 Pins
Package	DIP-28
Operating Temperature	-40°C to +85°C

Applications:

The MCP23017-E/SP is widely used in:

Arduino Projects
ESP32 Development
Raspberry Pi GPIO Expansion
STM32 Embedded Systems
PIC Microcontroller Projects
Robotics
Home Automation
Industrial Automation
IoT Devices
Smart Agriculture
Relay Control Systems
LCD Display Interface
LED Matrix Controller
Keypad Interface
Smart Switches
Sensor Expansion
Data Logging Systems
DIY Electronics Projects
University Research Projects

Why Choose MCP23017?

When your microcontroller has limited GPIO pins, replacing the controller isn't always practical. The MCP23017 offers a simple, reliable, and cost-effective solution by providing 16 additional programmable GPIOs over a single I²C interface.

It supports interrupt functionality, internal pull-up resistors, configurable pin direction, and multiple device addressing, making it one of the most popular GPIO expanders for embedded system development.

Compatibility:

Compatible with:

Arduino UNO
Arduino Nano
Arduino Mega
ESP8266
ESP32
Raspberry Pi
STM32
PIC Microcontrollers
AVR Development Boards
BeagleBone
Teensy
Jetson Nano
NodeMCU

Package Includes:

1 × MCP23017-E/SP 16-Channel GPIO Expander IC (DIP-28)

Benefits for Bangladeshi Students & Engineers

Whether you're building a robotics project for a university competition, creating an IoT prototype, or designing an industrial control system, the MCP23017 helps you expand digital I/O efficiently without changing your microcontroller. It is widely used in engineering labs, final-year projects, and professional embedded system development across Bangladesh.

Frequently Asked Questions

The MCP23017 is a 16-bit I²C GPIO expander that increases the number of digital input/output pins available for microcontrollers like Arduino, ESP32, Raspberry Pi, and STM32.

Yes. The MCP23017 is fully compatible with ESP32 and communicates through the I²C interface.