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Mikroe EXPAND 5 Click

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Mikroe EXPAND 5 Click features a low-voltage 24-bit I2C and SMBus I/O expander to provide general-purpose remote I/O for most microcontrollers via an I2C serial interface. This Click boardâ„¢ features the TCA6424A from Texas Instruments, and it operates over a power supply voltage range of 1.65V to 5.5V. Wide voltage range allows the TCA6424A to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. The P-port outputs have high-current sink capabilities for directly driving LEDs while consuming low device current.

  • On-board modules: TCA6424A
  • 24-bit, 400kHz I2C port expander
  • Wide voltage range
  • High-current sink outputs
  • GPIO, I2C interface
  • mikroBUS compatibility
  • L (57.15mm x 25.4mm) click board size
  • 3.3V or 5V input voltage


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