How to identify MCU by it's pinout?

[Finderbinder]

Does any mcu finder exist which is able to sort out a potential candidates?
Or short question: does substitute mcu exist for this Holychip HC89F0541 (LQFP32/QFN32)?
https://crossic.com/wp-content/uploads/2022/10/HC89F0541_0531_Datasheet_Ver1.01_en.pdf

[wraper]

Why? It's readily available in many places in China, including aliexpress. There is a chance code could be compatible with something else depending on what peripherals it uses as MCU is based on 8051 core. Very unlikely that there is a direct substitute though.

[Finderbinder]

The actual mcu is burned out. I think of using some popular mcu to program it with recreated firmware.
I'm not sure that chinese mcu is compatible with my programmers, compilers.

[wraper]

It's certainly compatible with any 8051 compiler, it has JTAG so probably you don't need to buy a specific programmer/debugger.

[coromonadalix]

seems enhanced 8051 family ...  and  i think   STC does it too ??

[ColinB]

It seems unlikely to me you'll find another microcontroller with the same pinout, I don't think this one is standard. But maybe there's one.

What I'd do, is use whatever MCU you want that is suitable (i.e. compatible voltage/clocking/IO features) and then either:

1. make a PCB module containing the new MCU, that fits the existing footprint, or

2. dead-bug/point to point wire the new MCU to the old footprint

[PCB.Wiz]

The actual mcu is burned out. I think of using some popular mcu to program it with recreated firmware.
I'm not sure that chinese mcu is compatible with my programmers, compilers.

How complex is the firmware ?

You can buy Holychip development tools, like this
https://www.chipsmall.com/Products/HC-LINK-HC89F0541-Demo-HC-PM51_Shanghai-Holychip-E_20059201.html
and this link from their home page
https://item.taobao.com/item.htm?spm=a2oq0.12575281.0.0.4ace1deb5QqLDZ&ft=t&id=607238005144