Electronics > Repair

Can't locate/ID.this chip for the life of me. Anyone care to take a crack at it?

<< < (3/4) > >>

fzabkar:
I can't see a crystal or oscillator in the OP's photo ...

Could we see a photo of the whole PCB?

m k:
More surrounding components would be better.

My take is that 1 is not 1, so 22C3|W[DBO0][O0]c e3.
1st C can be 12, so made 22/2023.

Is lower part of a logo 'together' (hé sī).

E,
obviously C is 12.

ArdWar:
If there are wireless version of this keyboard family there might be merit into suspicion that it's a clone of STM32WB series. Not necessarily a full clone, but at least functionally similar. That's what Chinese OEM supplier often do (e.g. STM32WB-like peripherals but using 51 core etc)

m k:
What's 0c then, different package and mask ROM, of version e3?

fzabkar:
https://electronics.stackexchange.com/questions/2428/what-does-the-e3-or-e4-printed-on-an-ic-mean

"e3" is most probably an RoHS mark.

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