Description

    AT2632 is a SHA-1 coprocessor with I²C interface EEPROM, which can authenticate the identity of the device and the host, and realize the secure storage of service data. AT2632 communicates with microcontrollers through the widely used I²C standard interface.

Characteristic

• Dedicated hardware-accelerated SHA-1 engine for calculating and comparing MACs;

• 128 bytes of user EEPROM, including 2 protection register bytes, 8 user ID bytes, 8 key bytes, and 110 bytes of device characteristic data;

• The I²C host interface supports 100kHz and 400kHz communication rates.

• I²C device slave address is 10 (AD2) 0 (AD1) 0 (AD0) 0;

• SOP8 package

Application area

• Intellectual property security testing

• Safety management

• System certification

• Token authentication for electronic payment systems

• Service data confirmation

• Inspection of consumable products

• Copy protection

• Access control system certification

• Typical application circuit