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MCP23017-E/SS

Name: MCP23017-E/SS
Rating: 4.7 (12 reviews)

IC I/O EXPANDER I2C 16B 28SSOP

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包 SSOP-28
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規格

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-SSOP (0.209, 5.30mm Width)

概述

Description

The MCP23017-E/SS is a 16-bit I/O expander from Microchip Technology that interfaces with microcontrollers via the I²C bus. It allows for the expansion of GPIO (General Purpose Input/Output) pins, enabling users to connect more devices than the microcontroller natively supports. Each MCP23017 can provide an additional 16 outputs or inputs, and multiple devices can be connected to the same I²C bus, allowing for scalable I/O solutions.
The device features built-in pull-up resistors and configurable interrupt capabilities, facilitating efficient communication and reducing the need for additional components. The MCP23017 operates over a wide voltage range (1.8V to 5.5V), making it suitable for various applications, including consumer electronics and industrial automation.
In summary, the MCP23017-E/SS is a versatile, cost-effective solution for I/O expansion, allowing for greater flexibility in circuit design and functionality.

Features

The MCP23017-E/SS is a 16-bit I/O port expander that communicates via I2C interface. Here are its key features:
1. I/O Expansion: Provides 16 additional GPIO pins for microcontrollers.
2. I2C Interface: Supports standard and fast I2C modes (up to 1 MHz).
3. Address Configuration: Configurable I2C address allowing up to 8 devices on the same bus.
4. Interrupts: Outputs can generate interrupts on change, enabling efficient event handling.
5. Configurable Pins: Each pin can be individually configured as input or output with internal pull-up resistors available for inputs.
6. Programmable Output: Ability to set output states, read input states, and configure polarity inversion.
7. Wide Supply Voltage: Operates from 1.8V to 5.5V, suitable for a variety of applications.
8. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered devices.
Overall, the MCP23017-E/SS is ideal for projects requiring additional GPIOs in compact electronic designs.

Package

The MCP23017-E/SS is packaged in a 16-pin SSOP (Shrink Small Outline Package) format.

Pinout

The MCP23017-E/SS is a 16-bit I/O expander with I2C interface from Microchip Technology. It has a 28-pin SSOP (Shrink Small Outline Package) configuration.
### Pin Count:
- Total Pins: 28
### Key Functions:
- GPIO Pins: 16 general-purpose input/output pins (GP0 to GP15).
- I2C Interface: Connects to the microcontroller via SDA (data line) and SCL (clock line).
- Addressing Pins: Three address pins (A0, A1, A2) allow for multiple MCP23017 devices on the same I2C bus.
- Interrupt Output: Two pins (INTA and INTB) can be used for interrupt-driven applications.
- Power Supply: Operates with a voltage range of 1.8V to 5.5V.
- Configuration Pins: Includes reset, and configuration features for pull-ups and I/O direction.
This device is commonly used to expand the number of I/O ports available in microcontroller projects.

Manufacturer

The MCP23017-E/SS is manufactured by Microchip Technology Inc., a publicly traded company based in Arizona, USA. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company specializes in embedded control applications and serves a wide range of industries, including automotive, industrial, consumer electronics, and more. Microchip is known for its extensive portfolio of products that enable designers to create innovative solutions in various fields, emphasizing reliability and energy efficiency.

Application

The MCP23017-E/SS is a 16-bit I/O expander that communicates via I2C. It is widely used in embedded systems for adding digital inputs and outputs to microcontrollers, enhancing GPIO availability. Application areas include interfacing with buttons, LEDs, sensors, and displays in projects like home automation, robotics, and IoT devices. Its ability to connect multiple devices over I2C makes it suitable for compact designs requiring efficient use of microcontroller pins.

Equivalent

Equivalent products to the MCP23017-E/SS chip include the PCF8575, TCA9555, and the PCA9555. These devices also offer I2C I/O expansion capabilities with varying numbers of pins and features. However, specific compatibility in terms of voltage levels, pin configurations, and I2C address range should be checked before substitution.