How much is the size of NVRAM in nRF52832 ?

[fuheng]

How much is the size of NVRAM in nRF52832 ?

[sigvartmh]

Device                  RAM   Flash
nRF52832-QFAA 64 kB  512 kB
nRF52832-QFAB 32 kB  256 kB
nRF52832-CIAA  64 kB  512 kB

[fuheng]

NVRAM is not RAM or FLASH . NVRAM means  NVM— Non-volatile memory . 

How much is the size of NVM in nRF52832 ?

[sigvartmh]

Sorry I don't understand what you are actually looking for NVM = Flash
Is a type of  non-volatile memory https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/nvmc.html?cp=4_2_0_10#concept_pcl_wbz_vr

I'm pretty sure the RAM used in nrf52832 is SRAM so that would be one type of NVRAM. Other than that I'm not sure what you are looking for there is no special EEPROM on nrf52832 if that's what you are looking for. I guess read the datasheet maybe you can find what you are looking for nRF52832 Product Specification v1.4

[fuheng]

There is no special EEPROM on nRF52832 . Is is true ?

[sigvartmh]

Don't know read the datasheet :) If you don't count flash as type of eeprom. If you are looking for a way to store persistent data just use flash