It is unlikely to be MAX232 as this IC needs four external electrolytic capacitors to work and the capacitors are not visible in the image. I would guess the IC is a microcontroller, based on the two crystals, 330 ohms resistors, and the two LEDs near it.
Are you trying to repair it? If you want to build it, you're in for a big surprise.
There are also two crystals on the board, one is 6.000MHz and the frequency of the other not readable from the image.
You can buy these crystals no problem, but the presence of crystals indicate hiding somewhere there is/are microcontroller(s) or custom made IC which you cannot obtain or obtainable but won't work without firmware code .