Matter hardware and memory requirements

Hardware that runs Matter protocol applications must meet specification requirements, including providing the right amount of flash memory and being able to run Bluetooth LE and Thread concurrently.

Supported SoCs

Currently the following SoCs from Nordic Semiconductor are supported for use with the Matter protocol:

  • nRF5340 (Matter over Thread and Matter over Wi-Fi through the nrf7002_ek shield)

  • nRF5340 + nRF7002 (Matter over Thread and Matter over Wi-Fi)

  • nRF52840 (Matter over Thread)

Front-End Modules

SoCs from Nordic Semiconductor that can run the Matter protocol over Thread can also work with external Front-End Modules. For more information about the FEM support in the nRF Connect SDK, see Working with RF front-end modules and nRF21540 DK.

External flash

For the currently supported SoCs, you must use an external memory with at least 1 MB of flash for nRF52840 and 1.5MB for nRF5340. This is required to perform the DFU operation.

The development kits for the supported SoCs from Nordic Semiconductor are supplied with the MX25R64 type of external flash that meets these memory requirements. However, it is possible to configure the SoCs with different QSPI or SPI memory if it is supported by Zephyr. For this purpose, check the reference design for Nordic DKs for information about how to connect the external memory with SoC, specifically whether the pins are designed for the QSPI or the high-speed SPIM operations.

RAM and flash memory requirements

RAM and flash memory requirement values differ depending on the DK and the programmed sample.

The following tables list memory requirement values for Matter samples.

Values are provided in kilobytes (KB).

The following table lists memory requirements for samples running on the nRF52840 DK (nrf52840dk_nrf52840).

Sample

MCUBoot ROM

Application ROM

Factory data

Settings

Total ROM

Total RAM

Light Bulb (Debug)

28

904

4

16

952

220

Light Bulb (Debug with Amazon FFS)

28

906

4

16

954

220

Light Bulb (Release)

28

727

4

16

775

213

Light Bulb (Debug with DFU over SMP)

28

913

4

16

961

232

Light Switch (Debug)

28

855

4

16

903

210

Light Switch (Release)

28

686

4

16

734

204

Light Switch (Debug with DFU over SMP)

28

863

4

16

911

223

Lock (Debug)

28

868

4

16

916

211

Lock (Release)

28

682

4

16

730

204

Lock (Debug with DFU over SMP)

28

877

4

16

925

223

Template (Debug)

28

824

4

16

872

210

Template (Release)

28

662

4

16

710

203

Window Covering (Debug)

28

848

4

16

896

210

Window Covering (Release)

28

679

4

16

727

204

Window Covering (Debug with DFU over SMP)

28

857

4

16

905

223