MCP23017T-E/SO

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MCP23017T-E/SO

IC I/O EXPANDER I2C 16B 28SOIC

  • Manufacturer
  • Mfr. Part #MCP23017T-E/SO
  • Package SOIC-28
  • Datasheet
  • In Stock4012

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
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-SOIC (0.295, 7.50mm Width)

Overview

Description

The MCP23017T-E/SO is a 16-bit I/O expander that communicates with microcontrollers via the I2C protocol, allowing additional GPIO (General Purpose Input/Output) pins for projects. It features two 8-bit ports (Port A and Port B) and can be configured as input or output for each pin. This flexibility makes it ideal for applications that require more I/O than what is available on a microcontroller.
The device supports up to 8 I2C addresses, enabling multiple MCP23017s to be connected on the same bus. It includes built-in interrupt capabilities, allowing the microcontroller to respond to changes in pin states efficiently. The MCP23017 operates at a supply voltage range of 1.8V to 5.5V, making it suitable for both 3.3V and 5V systems.
With its small SOIC-20 package and ease of use, the MCP23017 is commonly used in various applications, including industrial controls, automation systems, and educational projects, where expanded I/O is needed without the complexity of additional microcontrollers.

Features

The MCP23017T-E/SO is a 16-bit I/O expander that communicates via the I2C interface. Key features include:
1. 16 GPIO Pins: Configurable as input or output, allowing for a wide range of applications.
2. I2C Interface: Supports standard and fast (up to 1 MHz) modes, enabling easy integration with microcontrollers.
3. Interrupt Capability: Each GPIO pin can generate interrupts, facilitating responsive designs.
4. Addressing: Can be configured with up to 8 devices on the same I2C bus via address pins.
5. Pull-up Resistors: Internal pull-up resistors can be enabled for input pins.
6. Low Power Consumption: Operates with low power requirements, making it suitable for battery-powered applications.
7. Wide Voltage Range: Operates from 1.8V to 5.5V, accommodating various system voltages.
8. Dual 8-bit Register Access: Simplifies control of GPIOs in blocks.
Overall, the MCP23017T-E/SO is ideal for expanding I/O capabilities in embedded systems and is commonly used in applications such as LED control, sensor interfacing, and more.

Package

The MCP23017T-E/SO is provided in a 28-pin SOIC (Small Outline Integrated Circuit) package.

Pinout

The MCP23017T-E/SO is a 16-bit I/O expander that uses the I2C interface, featuring a total of 28 pins. Its pin functions include:
- GPIO (General Purpose Input/Output): 16 pins (GPIOA and GPIOB) for general I/O operations.
- I2C Interface: Pins for SDA (data line), SCL (clock line), and a configurable address (A0, A1, A2) that allows up to 8 devices to be connected on the same I2C bus.
- Interrupts: Two pins (INTA and INTB) for reporting changes in the GPIO state.
- Reset: A reset pin to initialize the device.
- Power Supply: VDD and VSS pins for power and ground connections.
The MCP23017T-E/SO is commonly used in applications requiring additional input/output pins, such as in microcontroller interfacing.

Manufacturer

The MCP23017T-E/SO is manufactured by Microchip Technology Inc., a prominent American provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989, Microchip is known for its comprehensive range of semiconductor products that cater to diverse applications, including automotive, industrial, consumer, and telecommunications markets. The MCP23017 is a 16-bit I/O expander that communicates with microcontrollers via the I²C interface, allowing for the expansion of input/output pins. Microchip Technology is recognized for its commitment to innovation, quality, and customer support within the electronics industry.

Application

The MCP23017T-E/SO is a 16-bit I/O expander that communicates via I2C. Its application areas include expanding GPIO for microcontrollers, controlling LED displays, managing buttons and switches, interfacing with sensors, and enabling additional peripherals in embedded systems. It is commonly used in robotics, home automation, industrial control, and any project requiring additional digital inputs and outputs.

Equivalent

Equivalent products to the MCP23017T-E/SO chip include the PCF8575, MCP23008, and MCP23017. These devices offer similar I/O port expansion features, though specifications like I²C address range and number of I/O pins may vary. It's essential to compare their datasheets for specific requirements, such as voltage levels and communication protocols, to ensure compatibility with your application.

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