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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.
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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.
SPI (Serial Peripheral Interface) communication is one of the most popular protocols 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.
|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|
|Input Voltage||3.3V or 5V|
|Click board size||M (42.9 x 25.4 mm)|
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).
|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|