STM32G0B0 Flash endurance: 1k or 10k cycles?

[Pdea]

Hello,

I found an apparent inconsistency regarding the Flash endurance of STM32G0B0.

The STM32G0B0 datasheet (DS13565 Rev.3) specifies a minimum Flash endurance of 1 kcycle (1000 program/erase cycles).

However, AN4894 Rev.12, Table 5, specifies 10 kcycles for the STM32G0 series, with the following 1 kcycle exceptions:

• STM32G030x6/x8
• STM32G070CB/KB/RB

STM32G0B0 is not listed among these exceptions, which seems to indicate that 10 kcycles should apply to it according to AN4894.

For comparison, the STM32G0B1 datasheet (DS13560 Rev.6) specifies a minimum Flash endurance of 10 kcycles, consistent with AN4894.

Could ST please clarify which value should be used for STM32G0B0: 1 kcycle or 10 kcycles?

If 1 kcycle is the correct value, should STM32G0B0 also be listed as an exception in AN4894 Table 5?

Thank you.

[Andrew Neil]

I would take the Datasheet as the definitive reference over an App Note.

An App Note is just application guidance/illustration - it’s not a product specification.

[Pdea]

Thanks Andrew, I agree that the datasheet is the definitive product specification.

My main doubt is actually about the consistency of AN4894 Rev.12, Table 5.

If 1 kcycle is indeed the correct value for STM32G0B0, then it would seem that STM32G0B0 should also be listed among the 1 kcycle exceptions in that table.

I would therefore be interested in an official ST clarification on whether AN4894 needs to be updated for STM32G0B0.

[Imen.D]

 Hello ​@Pdea ,

First let me welcome you to the STM32 Community and thank you for having reported this.

I have passed your request internally (Internal ticket number CDM0066441) for check and correct the AN4894.