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PCA9538DBR

PCA9538DBR

Manufacturer No:

PCA9538DBR

Manufacturer:

Texas Instruments

Description:

IC XPNDR 400KHZ I2C SMBUS 16SSOP

Datasheet:

Datasheet

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PCA9538DBR Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-SSOP
  • Package / Case
    16-SSOP (0.209", 5.30mm 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
    8
  • DigiKey Programmable
    Not Verified
  • Packaging
    Cut Tape (CT)
  • Packaging
    Tape & Reel (TR)
  • Product Status
    Last Time Buy
  • Series
    -
The PCA9538DBR is an integrated circuit chip that belongs to the PCA9538 family of devices. It is an 8-bit I2C-bus and SMBus I/O expander with an interrupt output. Here are some advantages and application scenarios of the PCA9538DBR chip:Advantages: 1. Expandability: The PCA9538DBR chip allows for expanding the number of I/O pins available on a microcontroller or other devices. It provides an additional 8 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 other devices that support I2C. 3. Interrupt Output: The PCA9538DBR chip has an interrupt output pin that can be used to notify the microcontroller of any changes in the input pins' status. This allows for efficient monitoring of the input pins without continuously polling them. 4. Low Power Consumption: The chip is designed to operate at low power, making it suitable for battery-powered applications.Application Scenarios: 1. GPIO Expansion: The PCA9538DBR chip is commonly used to expand the number of general-purpose input/output (GPIO) pins available on microcontrollers. This is particularly useful when the microcontroller has limited I/O pins, but more are required 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. The input pins can be configured as inputs, and the interrupt output can be used to detect button presses or changes in the keypad state. 3. LED Control: The PCA9538DBR chip can be used to control multiple LEDs. The output pins can be configured as outputs, and the microcontroller can send commands over the I2C bus to turn on/off or dim the LEDs. 4. Sensor Monitoring: The chip's input pins can be used to monitor the status of various sensors, such as temperature sensors, motion sensors, or proximity sensors. The interrupt output can be used to notify the microcontroller when a sensor reading exceeds a threshold or when a specific event occurs.Overall, the PCA9538DBR chip offers expandability, flexibility, and low power consumption, making it suitable for various applications that require additional I/O pins or efficient monitoring of input pins.
PCA9538DBR Relevant information