Home / I/O Expanders / PCA9539PWR/
PCA9539PWR

PCA9539PWR

Manufacturer No:

PCA9539PWR

Manufacturer:

National Semiconductor

Description:

PCA95REMO16-BIASMBULOW-POWIEXPAN

Datasheet:

Datasheet

Delivery:

Payment:

Please send RFQ , we will respond immediately.

PCA9539PWR Specifications

  • Type
    Parameter
  • Supplier Device Package
    -
  • Package / Case
    -
  • Mounting Type
    -
  • Operating Temperature
    -
  • Voltage - Supply
    -
  • Current - Output Source/Sink
    -
  • Output Type
    -
  • Features
    -
  • Interface
    -
  • Packaging
    Tape & Reel (TR)
  • Product Status
    Obsolete
  • Series
    *
The PCA9539PWR 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 PCA9539PWR chip:Advantages: 1. I2C Interface: The chip utilizes the I2C-bus interface, which is a widely used communication protocol for connecting various devices in embedded systems. This allows for easy integration with microcontrollers and other I2C-compatible devices. 2. Multiple I/O Pins: The PCA9539PWR provides 16 I/O pins that can be configured as inputs or outputs. This allows for flexible interfacing with external devices and sensors. 3. Interrupt Output: The chip features an interrupt output pin that can be used to notify the microcontroller of any changes in the input states. This helps in reducing the need for continuous polling of the input pins, saving processing power. 4. Low Voltage Operation: The PCA9539PWR operates at low voltages, typically between 2.3V and 5.5V. This makes it suitable for battery-powered applications and low-power devices.Application Scenarios: 1. GPIO Expansion: The PCA9539PWR can be used to expand the number of general-purpose input/output (GPIO) pins available on a microcontroller. This is particularly useful in applications where the microcontroller has limited I/O pins, such as small-scale embedded systems or IoT devices. 2. LED Control: The chip can be used to control multiple LEDs in various applications, such as display panels, signage, or lighting systems. The I2C interface allows for easy control and configuration of the LED states. 3. Sensor Interface: The PCA9539PWR can be used to interface with multiple sensors that require digital inputs or outputs. This can include temperature sensors, proximity sensors, or motion detectors, among others. 4. Keypad or Button Matrix: The chip can be used to interface with a keypad or button matrix, where multiple buttons or keys need to be scanned and monitored. The I/O pins can be configured as inputs, and the interrupt output can be used to notify the microcontroller of any button presses.Overall, the PCA9539PWR chip offers flexibility, ease of integration, and low-power operation, making it suitable for a wide range of applications that require additional I/O pins and digital control.
PCA9539PWR Relevant information