Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Active |
| NumberofI/O | 16 |
| Interface | I²C |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 25mA |
| ClockFrequency | 1.7 MHz |
| Voltage-Supply | 1.8V ~ 5.5V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 28-VQFN Exposed Pad |
Overview
Description
The MCP23017-E/ML is a versatile I/O port expander from Microchip Technology. It features 16-bit I/O port expansion using the I2C interface, allowing for easy integration into various microcontroller-based projects. The device operates on a supply voltage ranging from 1.8V to 5.5V, making it suitable for low-power and low-voltage applications. It provides two 8-bit parallel input/output ports with individually configurable pins, supporting input, output, and interrupt-on-change functions.
The MCP23017-E/ML is equipped with three hardware address pins, enabling up to eight devices on the same I2C bus. It includes internal pull-up resistors and supports high-speed I2C communication at up to 1.7 MHz. The device's interrupt output can be configured to activate on pin state changes, improving response in real-time applications. Its small ML package (QFN-28) is space-efficient, making it ideal for compact designs. Overall, the MCP23017-E/ML offers a flexible solution to expand the I/O capabilities of microcontroller systems in a user-friendly manner.
The MCP23017-E/ML is equipped with three hardware address pins, enabling up to eight devices on the same I2C bus. It includes internal pull-up resistors and supports high-speed I2C communication at up to 1.7 MHz. The device's interrupt output can be configured to activate on pin state changes, improving response in real-time applications. Its small ML package (QFN-28) is space-efficient, making it ideal for compact designs. Overall, the MCP23017-E/ML offers a flexible solution to expand the I/O capabilities of microcontroller systems in a user-friendly manner.
Equivalent
The MCP23017-E/ML is a 16-bit I/O expander from Microchip Technology. Equivalent products include:
1. MCP23008: Also from Microchip, with 8-bit I/O.
2. PCF8575: From NXP, offering similar 16-bit I/O expansion via I2C.
3. PCAL9555A: Another option from NXP, a 16-bit I/O expander with interrupt capability.
4. PCA9535: Also from NXP, providing similar functionality with I2C interface.
These alternatives vary in features, so ensure compatibility with your specific application needs.
1. MCP23008: Also from Microchip, with 8-bit I/O.
2. PCF8575: From NXP, offering similar 16-bit I/O expansion via I2C.
3. PCAL9555A: Another option from NXP, a 16-bit I/O expander with interrupt capability.
4. PCA9535: Also from NXP, providing similar functionality with I2C interface.
These alternatives vary in features, so ensure compatibility with your specific application needs.
Features
The MCP23017-E/ML is an I/O expander with the following key features:
1. I2C Interface: Supports I2C communication, allowing easy integration with microcontrollers for extending the number of I/O pins.
2. 16 I/O Pins: Offers 16 bidirectional input/output pins, organized in two 8-bit ports (Port A and Port B).
3. Interrupt Capability: Each I/O port can be configured to generate interrupts on state changes, with separate interrupt outputs for each port.
4. Configurable I/O: Pins can be configured individually as inputs or outputs, and internal pull-up resistors can be enabled on inputs.
5. Addressing: Features three hardware address pins, allowing for up to eight devices on the same bus.
6. Operating Voltage: Supports a wide voltage range from 1.8V to 5.5V.
7. Package: Available in a 28-pin QFN package (ML suffix).
8. Low Power Consumption: Designed to be power-efficient, suitable for battery-operated applications.
9. Versatile Applications: Ideal for adding I/O capabilities to microcontrollers in various applications, including switches, LEDs, sensors, and more.
These features make the MCP23017-E/ML a flexible and versatile choice for expanding I/O resources in embedded systems.
1. I2C Interface: Supports I2C communication, allowing easy integration with microcontrollers for extending the number of I/O pins.
2. 16 I/O Pins: Offers 16 bidirectional input/output pins, organized in two 8-bit ports (Port A and Port B).
3. Interrupt Capability: Each I/O port can be configured to generate interrupts on state changes, with separate interrupt outputs for each port.
4. Configurable I/O: Pins can be configured individually as inputs or outputs, and internal pull-up resistors can be enabled on inputs.
5. Addressing: Features three hardware address pins, allowing for up to eight devices on the same bus.
6. Operating Voltage: Supports a wide voltage range from 1.8V to 5.5V.
7. Package: Available in a 28-pin QFN package (ML suffix).
8. Low Power Consumption: Designed to be power-efficient, suitable for battery-operated applications.
9. Versatile Applications: Ideal for adding I/O capabilities to microcontrollers in various applications, including switches, LEDs, sensors, and more.
These features make the MCP23017-E/ML a flexible and versatile choice for expanding I/O resources in embedded systems.
Pinout
The MCP23017-E/ML is a 28-pin I/O expander manufactured by Microchip Technology. It operates via the I2C interface and is designed to provide 16 additional GPIO (General Purpose Input/Output) pins. The device is organized into two ports, A and B, each consisting of 8 pins.
Key functions and features include:
- I2C Interface: Allows easy communication with microcontrollers using two lines, SDA (Serial Data) and SCL (Serial Clock).
- 16 GPIO Pins: Provides two 8-bit ports (PORTA and PORTB) for digital input/output, which can be configured individually as inputs or outputs.
- Interrupts: Features interrupt-on-change capability for each pin, useful for detecting changes on input pins.
- Addressing: Supports up to eight devices on the same I2C bus using three hardware address pins.
- Internal Pull-up Resistors: Optional pull-up resistors on each pin can be enabled.
- Operating Voltage: Typically operates at 1.8V to 5.5V.
The MCP23017 is commonly used in applications requiring additional I/O ports, like home automation and industrial control systems.
Key functions and features include:
- I2C Interface: Allows easy communication with microcontrollers using two lines, SDA (Serial Data) and SCL (Serial Clock).
- 16 GPIO Pins: Provides two 8-bit ports (PORTA and PORTB) for digital input/output, which can be configured individually as inputs or outputs.
- Interrupts: Features interrupt-on-change capability for each pin, useful for detecting changes on input pins.
- Addressing: Supports up to eight devices on the same I2C bus using three hardware address pins.
- Internal Pull-up Resistors: Optional pull-up resistors on each pin can be enabled.
- Operating Voltage: Typically operates at 1.8V to 5.5V.
The MCP23017 is commonly used in applications requiring additional I/O ports, like home automation and industrial control systems.
Manufacturer
The MCP23017-E/ML is manufactured by Microchip Technology Inc. Microchip is a leading American semiconductor company that specializes in the production of microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. They provide a variety of solutions for embedded control applications, catering across numerous industries including automotive, consumer electronics, industrial, and telecommunications. The company is known for its extensive portfolio of microcontrollers and is a prominent player in the semiconductor industry.
Application
The MCP23017-E/ML is an I/O expander commonly used in applications requiring additional digital I/O pins. It is ideal for microcontroller projects where pin count is limited. Key application areas include:
1. Home Automation: For controlling lights, switches, and sensors.
2. Industrial Control Systems: Extending I/O for machinery and process control.
3. Consumer Electronics: Enhancing user interface options with additional buttons and LEDs.
4. Robotics: Managing sensors and actuators.
5. IoT Devices: Expanding connectivity and control capabilities.
6. Embedded Systems: General-purpose I/O expansion for custom hardware.
Its versatility makes it suitable for any application needing increased digital interfaces.
1. Home Automation: For controlling lights, switches, and sensors.
2. Industrial Control Systems: Extending I/O for machinery and process control.
3. Consumer Electronics: Enhancing user interface options with additional buttons and LEDs.
4. Robotics: Managing sensors and actuators.
5. IoT Devices: Expanding connectivity and control capabilities.
6. Embedded Systems: General-purpose I/O expansion for custom hardware.
Its versatility makes it suitable for any application needing increased digital interfaces.
Package
The MCP23017-E/ML is a 28-pin QFN (Quad Flat No-leads) package. It is a surface-mount package that is compact and designed for integrated circuit applications, providing 16-bit I/O expander capabilities with I2C interface.