Zigbee memory requirements

This page provides information about the amount of flash memory and RAM that is required by Zigbee samples, as well as stack memory requirements for main and zboss threads. Use it to check if your application has enough space for a given configuration. Values are provided for ZBOSS libraries.

Samples were built using the available ZBOSS Zigbee stack. Unless stated otherwise, the default prj.conf was used.

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 Zigbee samples.

Values are provided in kilobytes (KB). n/a indicates that the sample with the given variant is not supported on the DK.

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

Sample

ROM, ZBOSS stack + App

ROM, MCUboot bootloader

ROM, ZBOSS non-volatile memory

ROM, ZBOSS product config

Total ROM

RAM, ZBOSS stack + App

Total RAM

Network coordinator

318

0

32

4

354

67

67

Light bulb

341

0

32

4

377

53

53

Light switch

263

0

32

4

299

48

48

Light switch with Zigbee FOTA

275

48

32

4

359

53

53

Light switch with Multiprotocol Bluetooth LE extension

365

0

32

4

401

63

63

Light switch with Multiprotocol Bluetooth LE extension and Zigbee FOTA

377

48

32

4

461

68

68

NCP

341

0

32

4

377

79

79

NCP with USB transport

361

64

32

4

461

88

88

Zigbee application template

317

0

32

4

353

62

62

Zigbee shell

400

0

32

4

436

83

83

Stack memory requirements

The following table lists stack memory requirement values for main and zboss threads. These measurements were carried out with Thread analyzer, using the following Kconfig options for configuration:

Values are provided in bytes (B).

The following table lists memory requirements for the nRF52 Series devices.

Sample

main thread stack usage

main thread stack size

zboss thread stack usage

zboss thread stack size

Network coordinator

464

1024

1136

1952

Light bulb

696

1024

1232

1952

Light switch

432

1024

1232

1952