3.3 ECC608-TNGHNT EEPROM One-Time-Programmable (OTP) Zone

The OTP Zone of 64 bytes (512 bits) is part of the EEPROM array and is used for read-only storage. It is organized as two blocks of 32 bytes each. For the ECC608-TNGHNT, the OTP Zone is shipped pre-locked and contains the following information:

I2C device version

    28 D5 88 47 6D 3A A1 7C 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The data byte values written into the OTP Zone are always available for reading using either 4-byte or 32-byte reads but can never be modified.
: The bytes in the OTP Zone may change over time. These values must not be used in any cryptographic calculations.