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

327

0

32

4

363

67

67

Light bulb

350

0

32

4

386

53

53

Light switch

270

0

32

4

306

48

48

Light switch with Zigbee FOTA

282

48

32

4

366

53

53

Light switch with Multiprotocol Bluetooth LE extension

373

0

32

4

409

64

64

Light switch with Multiprotocol Bluetooth LE extension and Zigbee FOTA

385

48

32

4

469

69

69

NCP

350

0

32

4

386

79

79

NCP with USB transport

370

64

32

4

470

88

88

Zigbee application template

326

0

32

4

362

62

62

Zigbee shell

409

0

32

4

445

91

91

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

1120

1952

Light bulb

688

1024

1288

1952

Light switch

464

1024

1224

1952