SPI Isolator click

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  • MIKROE-2583
  • MIKROE-2583
SPI Isolator click  carries the  ADuM4154   5kV  digital isolator optimized...more
Product information "SPI Isolator click"
SPI Isolator click carries the ADuM4154 5kV digital isolator optimized for a serial peripheral interface (SPI). The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over SPI interface.

ADuM4154 features

The ADuM4154 has four high-speed channels. The first three channels, CLK, MI/SO, and MO/SI (the slash indicates the connection of the particular input and output channel across the isolator) are optimized for either low propagation delay in the B grade, or high noise immunity in the A grade.

Note: For more information about the A and B grade specifications see the datasheet.

Take a look at how the click can be connected in the picture below:

Note: For this example we used the ccRF 3 click and the EasyPIC v7 development board

SPI communication

SPI (Serial Peripheral Interface) communication is one of the most popularprotocols for sending data between microcontrollers and different peripherals.

It is a synchronous protocol; the clock signal is provided by the master.

For more information take a look at our Learn article about SPI communication.


Type Isolator
Applications Sensor isolation, industrial programmable logic controllers (PLCs)
MCU ADuM4154 digital isolator optimized for SPI
Key Features The module supports up to 17 MHz SPI clock speed, 4 high speed, low propagation delay, SPI signal isolation channels
Key Benefits The ADuM4154 supports up to 4 slave devices
Interface SPI
Input Voltage 3.3V or 5V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)

Pinout diagram

This table shows how the pinout on SPI Isolator click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
  NC 1 AN PWM 16 NC  
  NC 2 RST INT 15 NC  
Slave Select from the Master MSS 3 CS TX 14 NC  
SPI Clock from the Master Controller MCLK 4 SCK RX 13 NC  
SPI Data from the Slave to the Master MI/SO Line MI 5 MISO SCL 12 NC  
SPI Data from the Master to the Slave MO/SI Line MO 6 MOSI SDA 11 NC  
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground


 mikroBUS™ Standard specification 
 Learn: SPI Bus
 SPI Isolator click schematic

 ADuM4154 datasheet

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