Can anyone help me ID some components?

Thread Starter


Joined Feb 15, 2007
The attached photo highlights two components that I'm having trouble identifying. The one on the right appears to be a Microchip Technologies product, but I cannot find any info, datasheets, etc. based on the numbers printed on it. Can anyone help shed some light on what these are (and maybe where I can find datasheets)?

This is from my car's remote key fob (circa 2004), if it helps.

Thanks in advance!




Joined Jun 6, 2011
The metal can is a ceramic resonator, 2 Mhz I believe.

The IC is a likely a Microchip MCU, custom imprinted for obscurity reasons. It needs firmware. You will not find a suitable replacement unless you can roll your own code.