Trying to find part No of ST chip with code gk16w 85003f3p6 chn30ere7 (or similar)

[Me3]

Hello ST community,

I am trying to find the part number of the chip in the attached picture with the code gk16w 85003f3p6 chn30ere7 (or similar), which unfortunately broke during a thunderstorm near our house. It's from a Nespresso XN110 coffee machine.

Does anyone have any idea, what part number this chip has or what type of component it is?

[Tesla DeLorean · Accepted solution]

STM8S Micro Controller

https://www.st.com/en/microcontrollers-microprocessors/stm8s003f3.html

[Me3]

Great! This it is.
Thanks a lot for your fast reply!

[Tesla DeLorean]

I don't expect the content (firmware) to be recoverable, but you might be able to cannibalize a working part from another board for said coffee machine.

A blank part from Mouser won't help you directly, you'd need a firmware image to apply to the part for it to work in this context.

[Me3]

Yeah, I agree, recoverable is the FW most probably not, since the MCU is not working at all anymore. I guess there was destroyed something in the power supply circuit inside the MCU (due to the thunderstorm near the house).

I would have replaced the chip if it wouldn't have been any programmable device. But in this case it's not worth the effort to investigate more on this.

Thanks anyway a lot for your help!

[hylewode]

That chip with the code GK16W 85003F3P6 CHN30ERE7 appears to be a custom or house-marked IC, likely specific to certain appliances like the Nespresso XN110. Unfortunately, many appliance manufacturers use proprietary components or rebranded versions of standard parts, which makes direct identification challenging. It could be a power management IC or microcontroller, especially since it failed during a thunderstorm — a common time for surge-related damage.

You might try contacting Nespresso or checking repair forums for coffee machines; someone may have encountered the same issue.

[Tesla DeLorean]

It's an 8S not an 85

It's also a Micro Controller with software the customer installs on it. Making it application specific.