EmbDev.net

Forum: µC & Digital Electronics Unknown microcontroller


Author: Daniel Ribeiro (Company: NK Tecnologia) (dilberto)
Posted on:

Rate this post
0 useful
not useful
Hi!
I've a microcontroller board on which the micontroller's identification 
was sanded and I would like to identify it.
The microcontroller's case is a TQFP44 or LQFP44.
Analysing the PCB's electrical links, I see that :
The crystal, whose rated frequency is 11.0592 MHz, is attached to pins 
30 and 31 of the microcontroller.
The microcontroller is powered with +5V ( pin 7 or 28 ) and GND ( pin 6 
or 29 )
It has an I2C interface at pins 37 ( SCL ) and 42 ( SDA ).
The PCB has a spare connector, which I think is used for programming the 
chip on board, whose pins are connected to pins 14, 15, 16, 17 and 18 of 
the microcontroller.
Any help will be much appreciated.
Thanks in advance.

Author: A. K. (prx)
Posted on:

Rate this post
0 useful
not useful
You may want to take a look at Microchips PIC18F series. The PIC18F4680 
uses those pins in the role you described. It likely won't be the only 
one from Microchip though.

: Edited by User
Author: Daniel Ribeiro (Company: NK Tecnologia) (dilberto)
Posted on:

Rate this post
0 useful
not useful
Yes, you're right !
Thank you very much.

Reply

Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]




Bild automatisch verkleinern, falls nötig
Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.