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MCP23009-E/MG

MCP23009-E/MG

Manufacturer No:

MCP23009-E/MG

Manufacturer:

Microchip Technology

Description:

IC XPNDR 3.4MHZ I2C 16QFN

Datasheet:

Datasheet

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MCP23009-E/MG Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-QFN (3x3)
  • Package / Case
    16-VFQFN Exposed Pad
  • Mounting Type
    Surface Mount
  • Operating Temperature
    -40°C ~ 125°C
  • Voltage - Supply
    1.8V ~ 5.5V
  • Clock Frequency
    3.4 MHz
  • Current - Output Source/Sink
    25mA
  • Output Type
    Open Drain
  • Features
    POR
  • Interrupt Output
    Yes
  • Interface
    I²C
  • Number of I/O
    8
  • DigiKey Programmable
    Not Verified
  • Packaging
    Tube
  • Product Status
    Active
  • Series
    -
The MCP23009-E/MG is an integrated circuit chip that provides 8-bit parallel input/output (I/O) expansion for I2C bus applications. Here are some advantages and application scenarios of this chip:Advantages: 1. I2C Interface: The MCP23009-E/MG chip communicates using the I2C protocol, which allows for easy integration with microcontrollers and other devices supporting I2C communication. 2. Expandable I/O: It provides 8 additional I/O pins, which can be used to expand the I/O capabilities of microcontrollers that have limited I/O pins. 3. Configurable Pins: Each I/O pin can be individually configured as an input or output, allowing flexibility in designing various applications. 4. Interrupt Capability: The chip supports interrupt-on-change for any of its I/O pins, enabling efficient event-driven programming and reducing the need for continuous polling.Application Scenarios: 1. Microcontroller Expansion: The MCP23009-E/MG chip is commonly used to expand the I/O capabilities of microcontrollers, especially those with limited pins. It allows the microcontroller to interface with more sensors, actuators, or other peripheral devices. 2. Keypad or Button Matrix: The chip can be used to interface with a keypad or button matrix, where multiple buttons or keys can be connected using fewer I/O pins. Each button's state can be read individually through the I2C interface. 3. LED Control: It can be used to control multiple LEDs using fewer I/O pins. The chip can be configured as an output and connected to LED drivers or directly to LEDs with appropriate current-limiting resistors. 4. Sensor Interface: The MCP23009-E/MG chip can be used to interface with various sensors, such as switches, temperature sensors, or proximity sensors. The sensors' outputs can be read through the I/O pins configured as inputs. 5. Expanding Existing I2C Devices: It can be used to expand the I/O capabilities of existing I2C devices that have limited I/O pins, allowing for more complex applications without the need for additional microcontrollers.Overall, the MCP23009-E/MG chip provides a cost-effective and efficient way to expand I/O capabilities in various applications, especially those involving microcontrollers and I2C communication.
MCP23009-E/MG Relevant information