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PCA9538DW

PCA9538DW

Manufacturer No:

PCA9538DW

Manufacturer:

Texas Instruments

Description:

IC XPNDR 400KHZ I2C SMBUS 16SOIC

Datasheet:

Datasheet

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PCA9538DW Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-SOIC
  • Package / Case
    16-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
    8
  • DigiKey Programmable
    Not Verified
  • Packaging
    Tube
  • Packaging
    Bulk
  • Product Status
    Last Time Buy
  • Series
    -
The PCA9538DW is an integrated circuit chip that belongs to the PCA9538 family of 8-bit I2C-bus and SMBus I/O expanders. It provides 8 bits of general-purpose parallel input/output (I/O) expansion for the I2C-bus or SMBus. Here are some advantages and application scenarios of the PCA9538DW:Advantages: 1. I2C/SMBus Interface: The chip utilizes the I2C-bus or SMBus interface, which allows for easy integration with microcontrollers and other devices supporting these communication protocols. 2. Expandability: The PCA9538DW provides 8 bits of I/O expansion, allowing for the control and monitoring of multiple devices or peripherals using just a few pins of the microcontroller. 3. Programmable I/O Modes: Each I/O pin can be individually configured as an input or output, providing flexibility in designing various applications. 4. Interrupt Output: The chip supports an interrupt output pin that can be used to notify the microcontroller of changes in the input states, reducing the need for continuous polling. 5. Low Standby Current: The PCA9538DW has a low standby current consumption, making it suitable for battery-powered applications.Application Scenarios: 1. LED Control: The PCA9538DW can be used to control multiple LEDs in applications such as display panels, signage, or lighting systems. The I/O pins can be configured as outputs to drive the LEDs, and the chip's expandability allows for controlling a large number of LEDs. 2. Keypad or Button Interface: It can be used to interface with a keypad or a set of buttons. The I/O pins can be configured as inputs, and the chip can detect button presses or keypad inputs, providing a simple and efficient way to interface with user inputs. 3. Sensor Monitoring: The PCA9538DW can be used to monitor the status of various sensors. The I/O pins can be configured as inputs to read the sensor outputs, and the interrupt output can be used to notify the microcontroller of any changes in the sensor states. 4. GPIO Expansion: It can be used to expand the number of general-purpose I/O pins available on a microcontroller. The PCA9538DW can act as an I/O expander, allowing for the control and monitoring of additional devices or peripherals without using many microcontroller pins.Overall, the PCA9538DW offers flexibility, expandability, and ease of integration, making it suitable for a wide range of applications requiring I/O expansion and control.
PCA9538DW Relevant information