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 development and production 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, the programmed sample, and the ZBOSS stack version.

ZBOSS stack production version

The following tables list memory requirement values (in KB) for Zigbee samples for the production version of the ZBOSS Zigbee stack.

n/a indicates that the sample with the given variant is not supported on the DK.

nRF52840nRF52833

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	288	0	32	4	324	61	61
Light bulb	307	0	32	4	343	47	47
Light switch	242	0	32	4	278	41	41
Light switch with Zigbee FOTA	254	48	32	4	338	43	43
Light switch with Multiprotocol Bluetooth LE extension	338	0	32	4	374	56	56
Light switch with Multiprotocol Bluetooth LE extension and Zigbee FOTA	350	48	32	4	434	58	58

ZBOSS stack development version

The following tables list memory requirement values (in KB) for Zigbee samples running for the development version of the ZBOSS Zigbee stack.

n/a indicates that the sample with the given variant is not supported on the DK.

nRF52840nRF52833nRF5340

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	297	0	32	4	333	61	61
Light bulb	316	0	32	4	352	48	48
Light switch	249	0	32	4	285	42	42
Light switch with Zigbee FOTA	262	48	32	4	346	44	44
Light switch with Multiprotocol Bluetooth LE extension	345	0	32	4	381	56	56
Light switch with Multiprotocol Bluetooth LE extension and Zigbee FOTA	358	48	32	4	442	58	58
NCP	319	0	32	4	355	74	74
NCP with USB transport	338	64	32	4	438	82	82

Stack memory requirements

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

• For the stack memory size of the main thread - CONFIG_MAIN_STACK_SIZE

• For the stack memory size of the zboss thread - CONFIG_ZBOSS_DEFAULT_THREAD_STACK_SIZE

Sample	main thread stack usage	main thread stack size	zboss thread stack usage	zboss thread stack size
Network coordinator	432	1024	1136	2048
Light bulb	432	1024	1136	2048
Light switch	424	1024	1136	2048