CC2530 NV memory of CC2530

Anjali Ramchandani

Hi!

I want to know if I write something in NV, for how much time it is retained in the memory? Is it possible that the contents I write are lost after given limited time?

over 10 years ago

0 YiKai Chen over 10 years ago

Guru 735705 points

NV storage should be retained forever unless you erase it.

0 Igor Sherer over 10 years ago

Guru 31280 points

To be more precise:

The on-chip flash memory is primarily intended to hold program code and constant data.

The flash memory has the following features:

• Page size: 1 KB or 2 KB (details are given in the data sheet of the device.)

• Flash-page erase time: 20 ms

• Flash-chip (mass) erase time: 20 ms

• Flash write time (4 bytes): 20 μs

• Data retention (at room temperature): 100 years

• Program and erase endurance: 20,000 cycles

0 Anjali Ramchandani over 10 years ago in reply to Igor Sherer

Expert 2685 points

Thanks for your quick reply!
I also want to know if I want to overwrite the same bytes how many times I can do that?

0 Igor Sherer over 10 years ago in reply to Anjali Ramchandani

Guru 31280 points

20000 cycles, as stated in my previous post

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CC2530 NV memory of CC2530