Electronics > Repair
Unknown chip manufacturer?
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sokot13:
Hello,

Here is a photo of an unknown IC, from a consumer product from 2024. It embeds functions for reading from a SDCard, "decrypting" audio files, read analog inputs from various buttons, perform DAC. There are only two other chips on the board including one op amp. The sdcard only contains "encrypted" audio files, no software.

I did not find any information about this manufacturer, this logo is unknown to me.

The only markings are ECP390Y_I 2225UDZ and this "XX" logo.

Any ideas?
GGMM:
Hello,

not found also.  Xicor??
an interisting link
https://componentstash.com/reference/semiconductor-logos

cdt
PA0PBZ:
Appotech: https://www.appotech.com/

Probably a custom part nr.
sokot13:
Thank you! This chip reads a audio files in a special format, which is probably a known format encrypted in some way.
fzabkar:
Perhaps it's a custom version of this IC (AX1070, 16KB OTP + 5376B IRAM)?

https://gesigor.ru/pdf/AX107X.pdf
https://datasheet4u.com/download_new.php?id=1261671

https://gw.alicdn.com/imgextra/i2/1839037961/O1CN01hthnDu28gBeB7RBVF_!!1839037961.png  (photo)
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