Misterious microcontroller in mini-keyboard

[t4rmo]

I need some help identifying the chip in the picture:
The anthena bluetooth presence and the location of the oscillator can give clues, but it doesn't match with microcontrollers that I know

[selcuk]

Looks like BK3432. You can check the connections with a multimeter to be sure.

https://www.semiee.com/file/BEKEN/BEKEN-BK3432.pdf

[t4rmo]

The pin 17 is XTAL32K in BK3432. In the chip of the picture does not seem to be XTAL32K

[amyk]

JieLi AC6321A, AC6956C, and AC7006F have the osc and RF in the right places.

[t4rmo]

At first glance, I think the AC6321A has a pretty good chance of being: How did you find it? I tried searching in electronics stores using the filters in their search engine but couldn't find anything.

[amyk]

I knew that JieLi makes a lot of Bluetooth SoCs, and just went through their product catalog until I found a package and pinout match.