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, 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.

nRF52840nRF52833nRF5340nRF21540

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	313	0	32	4	349	62	62
Light bulb	338	0	32	4	374	49	49
Light switch	261	0	32	4	297	43	43
Light switch with Zigbee FOTA	272	48	32	4	356	48	48
Light switch with Multiprotocol Bluetooth LE extension	361	0	32	4	397	59	59
Light switch with Multiprotocol Bluetooth LE extension and Zigbee FOTA	372	48	32	4	456	64	64
NCP	339	0	32	4	375	75	75
NCP with USB transport	358	64	32	4	458	88	88
Zigbee application template	314	0	32	4	350	57	57

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:

• 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

Values are provided in bytes (B).

nRF52 SeriesnRF53 Series

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	1248	1952
Light switch	432	1024	1232	1952