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PCA9539AHF,128

PCA9539AHF,128

Manufacturer No:

PCA9539AHF,128

Manufacturer:

NXP USA Inc.

Description:

IC XPND 400KHZ I2C SMBUS 24HWQFN

Datasheet:

Datasheet

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PCA9539AHF,128 Specifications

  • Type
    Parameter
  • Supplier Device Package
    24-HWQFN (4x4)
  • Package / Case
    24-WFQFN Exposed Pad
  • Mounting Type
    Surface Mount
  • Operating Temperature
    -40°C ~ 85°C
  • Voltage - Supply
    1.65V ~ 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
    Cut Tape (CT)
  • Packaging
    Tape & Reel (TR)
  • Product Status
    Active
  • Series
    -
The PCA9539AHF is an integrated circuit chip that belongs to the PCA9539A family of devices. It is a 16-bit I2C-bus and SMBus I/O expander with an interrupt output and an open-drain output. Here are some advantages and application scenarios of the PCA9539AHF:Advantages: 1. Expandability: The PCA9539AHF allows you to expand the number of I/O pins available on your microcontroller or system. It provides 16 additional I/O pins, which can be configured as inputs or outputs. 2. I2C Interface: The chip communicates using the I2C-bus interface, which is a widely used standard for communication between integrated circuits. This makes it compatible with a wide range of microcontrollers and other devices. 3. Interrupt Output: The PCA9539AHF features an interrupt output pin that can be used to notify the microcontroller when any of the input pins change state. This can be useful for applications that require real-time response to external events. 4. Low Power Consumption: The chip is designed to operate with low power consumption, making it suitable for battery-powered devices or applications where power efficiency is important.Application Scenarios: 1. GPIO Expansion: The PCA9539AHF 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 microcontroller has limited I/O pins but requires more for connecting various sensors, actuators, or other peripheral devices. 2. Keypad or Button Interface: The chip can be used to interface with a keypad or a set of buttons. By configuring some of the I/O pins as inputs, you can detect button presses and send the corresponding signals to the microcontroller. 3. LED Control: The PCA9539AHF can be used to control multiple LEDs. By configuring some of the I/O pins as outputs, you can drive LEDs with different states, such as on/off or dimming, depending on your application requirements. 4. Sensor Interface: The chip can be used to interface with various sensors that use digital outputs. By connecting the sensor outputs to the I/O pins, you can read the sensor data through the I2C interface.These are just a few examples of the advantages and application scenarios of the PCA9539AHF. The specific use cases will depend on the requirements of your project or application.
PCA9539AHF,128 Relevant information