Home / I/O Expanders / PCF8574PW/
PCF8574PW

PCF8574PW

Manufacturer No:

PCF8574PW

Manufacturer:

Texas Instruments

Description:

IC XPNDR 100KHZ I2C 20TSSOP

Datasheet:

Datasheet

Delivery:

Payment:

Please send RFQ , we will respond immediately.

PCF8574PW Specifications

  • Type
    Parameter
  • Supplier Device Package
    20-TSSOP
  • Package / Case
    20-TSSOP (0.173", 4.40mm Width)
  • Mounting Type
    Surface Mount
  • Operating Temperature
    -40°C ~ 85°C
  • Voltage - Supply
    2.5V ~ 6V
  • Clock Frequency
    100 kHz
  • Current - Output Source/Sink
    1mA, 25mA
  • Output Type
    Push-Pull
  • Features
    POR
  • Interrupt Output
    Yes
  • Interface
    I²C
  • Number of I/O
    8
  • DigiKey Programmable
    Not Verified
  • Packaging
    Tube
  • Packaging
    Bulk
  • Product Status
    Last Time Buy
  • Series
    -
The PCF8574PW is an 8-bit I/O expander for the I2C bus. It has multiple advantages and can be used in various application scenarios:Advantages: 1. Minimal external components: The PCF8574PW requires only two pins for communication (SDA and SCL) and minimal external components, making it easy to interface with microcontrollers and other devices. 2. Expandability: It provides 8 additional I/O pins, allowing the user to expand the number of available I/Os on the host controller without the need for additional pins. 3. Low-power consumption: The chip is designed to operate at low power, making it suitable for battery-powered applications. 4. Compatible with I2C interface: It supports I2C bus communication, which is widely used for connecting various devices, such as microcontrollers, sensors, and LCD displays. 5. Addressable: Multiple PCF8574PW chips can be connected on the same I2C bus since they have programmable addresses, allowing for further I/O expansion.Application Scenarios: 1. I/O expansion: The PCF8574PW is commonly used in scenarios where there is a need for additional I/O pins. It can be used to interface various input devices like buttons, switches, and sensors, or output devices like LEDs, relays, and motors. 2. Keypad interfacing: By connecting the PCF8574PW to a keypad matrix, it becomes easier to read inputs from key switches. 3. LCD interfacing: It can be used to connect an LCD module to a microcontroller, enabling the control of the display with limited I/O pins. 4. Light control: The PCF8574PW can control multiple LED outputs and manage various lighting arrangements and patterns. 5. Home automation: It can be used for controlling various home automation devices, such as smart switches, sensors, and actuators.Overall, the PCF8574PW is versatile and finds applications in scenarios requiring additional I/O pins, expandability, low power consumption, and I2C interface compatibility.
PCF8574PW Relevant information