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MCP23009-E/SO

MCP23009-E/SO

Manufacturer No:

MCP23009-E/SO

Manufacturer:

Microchip Technology

Description:

IC XPNDR 3.4MHZ I2C 18SOIC

Datasheet:

Datasheet

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MCP23009-E/SO Specifications

  • Type
    Parameter
  • Supplier Device Package
    18-SOIC
  • Package / Case
    18-SOIC (0.295", 7.50mm Width)
  • 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/SO is an integrated circuit chip that belongs to the MCP23xxx family of general-purpose input/output (GPIO) expanders. Its advantages and application scenarios are as follows:Advantages: 1. Increased GPIO Count: The MCP23009-E/SO provides an additional 8 GPIO pins, which can be beneficial when the number of GPIO pins on the microcontroller or other devices is limited.2. Easy Interfacing: It communicates over the I2C bus, which is widely supported by various microcontrollers and other devices. This simplifies the interfacing process and allows for easy integration into existing systems.3. Low Power Consumption: The chip has a low standby current and operates at a wide voltage range. This makes it ideal for battery-powered or low-power applications.4. Interrupt Capability: The MCP23009-E/SO supports interrupt-on-change functionality, where it can generate an interrupt when the state of any input pin changes. This feature can be useful in scenarios where instant notification of state changes is required.5. Internal Weak Pull-Up Resistors: The chip includes internal weak pull-up resistors that can be enabled on individual pins. This eliminates the need for external pull-up resistors, simplifying circuit design.Application Scenarios: 1. Expanding GPIO Pins: The primary application of the MCP23009-E/SO chip is to expand the number of GPIO pins available on a microcontroller or other devices. This can be useful in projects that require a larger number of inputs or outputs, such as controlling multiple sensors, LEDs, relays, or buttons.2. Keypad or Button Matrix: The MCP23009-E/SO can be used in scenarios where a matrix of buttons or keys need to be connected to a microcontroller. By using the chip's GPIO pins, multiple buttons can be interfaced using a minimal number of microcontroller GPIO pins.3. LED/Lamp Control: It can be utilized to expand the number of GPIO pins available for controlling LEDs or lamps, enabling the control of a large number of LEDs individually with only a few microcontroller pins.4. Industrial Control Systems: The chip's low power consumption, interrupt capability, and ease of interfacing make it suitable for use in industrial control systems. It can help control various devices, monitor inputs, and generate interrupts based on state changes.Overall, the MCP23009-E/SO integrated circuit chip offers increased GPIO count, easy interfacing, low power consumption, interrupt capability, and internal pull-up resistors, making it useful in various scenarios that require extended GPIO capabilities.
MCP23009-E/SO Relevant information