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PCA9538PW

PCA9538PW

Manufacturer No:

PCA9538PW

Manufacturer:

Texas Instruments

Description:

IC XPND 400KHZ I2C SMBUS 16TSSOP

Datasheet:

Datasheet

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PCA9538PW Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-TSSOP
  • Package / Case
    16-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
    8
  • DigiKey Programmable
    Not Verified
  • Packaging
    Tube
  • Packaging
    Bulk
  • Product Status
    Obsolete
  • Series
    -
The PCA9538PW 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 PCA9538PW: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 PCA9538PW 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 PCA9538PW has a low standby current consumption, making it suitable for battery-powered applications.Application Scenarios: 1. LED Control: The PCA9538PW 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/Buttons: 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 PCA9538PW 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. By connecting multiple PCA9538PW chips, a large number of I/O pins can be added, enabling the control and monitoring of multiple devices or peripherals.Overall, the PCA9538PW offers expandable I/O capabilities with an easy-to-use interface, making it suitable for a wide range of applications requiring additional I/O pins or control of multiple devices.
PCA9538PW Relevant information