MAS6502(2011) Datasheet PDF - Micro Analog systems

INTRODUCTION
The MAS6502 16 bit Analog-to-Digital Converter (ADC) has a 256 bit (32 bytes) EEPROM memory. 8 bits (1 byte) have been reserved for storing internal clock oscillator trimming data leaving 248 bits (31 bytes) free for use.
This document gives instructions for writing data to the EEPROM memory.