Identification by part number

Hi All,
Im trying to identify a part of a circuit board by part number.
Id like to work what it is and what it does so I can learn more about it.
It is ST branded and ive tried searching on their website but have had no luck at all.
6HKN 33EV2.13
M99OA9935Z
This is what is printed on the part.
Any help would be appreciated.
Thanks in advance
 

cliffordcooley

Posts: 12,795   +6,147
No luck here either.

I can find where the chips are sold and in stock. I can even find what looks like a cross reference "6HKB07501758" to the "6HKN 33EV2.13" chip. But no matter where I go there doesn't seem to be a description much less a datasheet.
 

neeyik

Posts: 1,877   +2,191
Staff member
Sometimes you work it out by seeing the chip in its context - can you post some images of it? Preferably close up and then a full board image.
 
Sometimes you work it out by seeing the chip in its context - can you post some images of it? Preferably close up and then a full board image.
Sure.
 

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No luck here either.

I can find where the chips are sold and in stock. I can even find what looks like a cross reference "6HKB07501758" to the "6HKN 33EV2.13" chip. But no matter where I go there doesn't seem to be a description much less a datasheet.
Yeah, its hard to find anything on it.
 
Could you show the other side of the board too? Thanks.

Edit: Like clifford, I'm a bit stumped on this one as the other chips are easier to identify, such as the serial EEPROM and voltage regulator.

I bet r/electronics would have a field day with this.
 

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