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PCA9539PWRG4

PCA9539PWRG4

Manufacturer No:

PCA9539PWRG4

Manufacturer:

Texas Instruments

Description:

IC XPND 400KHZ I2C SMBUS 24TSSOP

Datasheet:

Datasheet

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PCA9539PWRG4 Specifications

  • Type
    Parameter
  • Supplier Device Package
    24-TSSOP
  • Package / Case
    24-TSSOP (0.173", 4.40mm 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
    Tape & Reel (TR)
  • Product Status
    Discontinued at Digi-Key
  • Series
    -
The PCA9539PWRG4 is an integrated circuit chip that belongs to the PCA9539 family of devices. It is a low-voltage 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers. Here are some advantages and application scenarios of the PCA9539PWRG4:Advantages: 1. Expandability: The PCA9539PWRG4 provides 16 I/O pins that can be used as inputs or outputs, allowing for easy expansion of the number of I/Os in a system. 2. I2C/SMBus Interface: The chip communicates over the I2C or SMBus 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 PCA9539PWRG4 has an interrupt output pin that can be used to signal the microcontroller when any of the I/O pins change state. This allows for efficient event-driven programming and reduces the need for continuous polling of the I/Os. 4. Configuration Registers: The chip has configuration registers that allow for individual pin configuration, such as input or output mode, polarity inversion, and pull-up/pull-down resistor enable. This provides flexibility in configuring the behavior of each I/O pin.Application Scenarios: 1. GPIO Expansion: The PCA9539PWRG4 can be used to expand the number of general-purpose input/output (GPIO) pins in a microcontroller-based system. This is useful when the available GPIO pins on the microcontroller are limited, but additional I/Os are required. 2. LED Control: The chip can be used to control multiple LEDs in a system. By configuring the I/O pins as outputs, the PCA9539PWRG4 can drive LEDs directly or through external drivers, allowing for efficient control of LED states. 3. Keypad or Button Interface: The chip can be used to interface with a keypad or a set of buttons. By configuring the I/O pins as inputs and enabling the internal pull-up resistors, the PCA9539PWRG4 can detect button presses or keypad inputs and generate interrupts to the microcontroller. 4. Sensor Interface: The chip can be used to interface with various sensors that have digital outputs. By configuring the I/O pins as inputs, the PCA9539PWRG4 can read the sensor outputs and generate interrupts or poll the sensor data periodically.Overall, the PCA9539PWRG4 offers expandability, flexibility, and ease of integration, making it suitable for various applications that require additional I/Os or interface with external devices.
PCA9539PWRG4 Relevant information