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PCA9539DW

PCA9539DW

Manufacturer No:

PCA9539DW

Manufacturer:

Texas Instruments

Description:

IC XPNDR 400KHZ I2C SMBUS 24SOIC

Datasheet:

Datasheet

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PCA9539DW Specifications

  • Type
    Parameter
  • Supplier Device Package
    24-SOIC
  • Package / Case
    24-SOIC (0.295", 7.50mm Width)
  • Mounting Type
    Surface Mount
  • Operating Temperature
    -40°C ~ 85°C
  • Voltage - Supply
    2.3V ~ 5.5V
  • Clock Frequency
    400 kHz
  • Current - Output Source/Sink
    10mA, 25mA
  • Output Type
    Push-Pull
  • Features
    POR
  • Interrupt Output
    Yes
  • Interface
    I²C, SMBus
  • Number of I/O
    16
  • DigiKey Programmable
    Not Verified
  • Packaging
    Tube
  • Packaging
    Bulk
  • Product Status
    Last Time Buy
  • Series
    -
The PCA9539DW is an integrated circuit chip that belongs to the PCA9539 family of devices. It is an 8-bit I2C-bus and SMBus I/O expander with interrupt and reset features. Here are some advantages and application scenarios of the PCA9539DW:Advantages: 1. Expandability: The PCA9539DW allows for expanding the number of I/O pins available on a microcontroller or microprocessor. It provides 8 additional I/O pins, which can be configured as inputs or outputs. 2. I2C Interface: The chip communicates over the I2C-bus, which is a widely used serial communication protocol. This makes it compatible with a wide range of microcontrollers and microprocessors. 3. Interrupt Functionality: The PCA9539DW supports interrupt functionality, allowing the microcontroller to be notified when a change occurs on any of the I/O pins. This helps in reducing the need for continuous polling of the pins. 4. Low Power Consumption: The chip has low power consumption, making it suitable for battery-powered applications.Application Scenarios: 1. GPIO Expansion: The PCA9539DW can be used to expand the number of general-purpose input/output (GPIO) pins available on a microcontroller. This is useful in applications where the number of available pins is limited, such as small microcontrollers or systems with multiple peripherals. 2. LED Control: The chip can be used to control multiple LEDs in applications like LED displays, status indicators, or lighting systems. The I2C interface allows for easy control and configuration of the LEDs. 3. Keypad or Button Interface: The PCA9539DW can be used to interface with a keypad or a set of buttons. The I/O pins can be configured as inputs, and the interrupt functionality can be utilized to detect button presses or changes in the keypad state. 4. Sensor Interface: The chip can be used to interface with various sensors that have digital outputs. The I/O pins can be configured as inputs to read the sensor data, and the interrupt feature can be used to trigger actions based on sensor events.Overall, the PCA9539DW offers expandability, flexibility, and ease of use in various applications requiring additional I/O pins and digital control.
PCA9539DW Relevant information