Zigbee memory requirements

This page provides information about the amount of flash memory and RAM that is required by Zigbee samples. Use it to check if your application has enough space for a given configuration.

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

nRF52840 DK RAM and flash memory requirements

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

Sample	ROM ZBOSS stack + App [kB]	ROM MCUBoot bootloader	ROM ZBOSS non-volatile memory	ROM ZBOSS product config	RAM ZBOSS stack + App [kB]	Total ROM	Total RAM
Network coordinator	292	0	32	4	59	328	59
Light bulb	309	0	32	4	45	345	45
Light switch	243	0	32	4	39	279	39
Light switch with Zigbee FOTA	254	48	32	4	42	338	42
Light switch with Multiprotocol Bluetooth LE extension	358	0	32	4	57	394	57

nRF52833 DK RAM and flash memory requirements

The following table lists memory requirements for samples running on the nRF52833 DK (nrf52833dk_nrf52833).

Sample	ROM ZBOSS stack + App [kB]	ROM MCUBoot bootloader	ROM ZBOSS non-volatile memory	ROM ZBOSS product config	RAM ZBOSS stack + App [kB]	Total ROM	Total RAM
Network coordinator	297	0	16	4	59	317	59
Light bulb	314	0	16	4	45	334	45
Light switch	247	0	16	4	39	267	39
Light switch with Zigbee FOTA	n/a (insufficient flash memory size)	n/a	n/a	n/a	n/a	n/a	n/a
Light switch with Multiprotocol Bluetooth LE extension	356	0	16	4	55	376	55

Stack memory requirements

The following table lists stack memory requirements 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	1144	2048
Light bulb	592	1024	1144	2048
Light switch	576	1024	1144	2048