Would it be possible to identify the IC from this image (18507CT)?
If I search for F1823 datasheet I get this link:

http://ww1.microchip.com/downloads/en/devicedoc/40001413e.pdf

14 pins version of PIC F1823: 8/14-Pin Flash Microcontrollers with XLP Technology from MicroChip.

The last line on an IC (in this case 18507CT) is normally the batch number, which is not useful for datasheet searching.