Identify Microchip Used On A PCB

Please see the attached images of a microchip used on a PCB board. I need someone to help me identify what type of microchip this is and help me find the specs sheet for communicating with this microchip. The numbers on the chip say: 11321 AG000 03J Another similar PCB, the numbers on the chip say: 11321 AM025 88K So I think 11321 is probably the part number of the microchip, and the letters and numbers below it may be the lot#? Any help would be greatly appreciated. Thank You.