Current consumption during write / erase flashpages?

[Andrej]

Hello everybody,

can somebody tell me how high the current consumption is during a flash write and erase operation is? (nRF52832)

Thanks.

[Sigurd]

Hi,

We don’t provide any specific data on this in the product specification. The exact current consumption will depend on the supply voltage, temperature and the age of the flash(e.g. number of previously performed write-erase cycles). In this post a user did some measurements on the nRF51822, the numbers for the nRF52 should be very similar to these values.

[Andrej]

Why you don't provide such important data for developers? We can't develop an battery based device without to know about these information. Could Nordic measure it for us? With the following conditions:

• Supply Voltage: 1.8V
• 25°C room temperature
• new device

Thanks in advance.

[Kushal]

Hello Sigurd,

We are using nrf52832 based BMD350 module and our device is battery operated(Battery Capacity is 675mAh). Our supply voltage is 3.3V and assuming device will be operated at 25 degree C. The flash location that we will be writing will be fresh. We already have our devices on field but now as per updated requirement we need to read/write data from/in internal flash. So we are very much concern of our battery life and due to these we wanted to know the current consumption for each read, write and erase cycle.  

       Kindly guide us for this. 

Thanks,

Kushal

[Sigurd]

Hi,

You can find the time it takes to write/erase here. Usually the time it takes will be very close to the minimum time listed in the table. I.e. around 2.05 ms to erase a page, and 67.6 µs to write one word. You can assume max 4mA average current to do the erase/write operation in your calculations.