ATAES132-SH-ER Atmel, ATAES132-SH-ER Datasheet - Page 85

• Manufacturer Part Number: ATAES132-SH-ER
• Description: EEPROM AES 32Kbit EE I2C
• Manufacturer: Atmel

Specifications of ATAES132-SH-ER

• Rohs: yes
• Maximum Clock Frequency: 1 MHz
• Operating Supply Voltage: 6 V
• Maximum Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8
• Interface Type: I2C
• Factory Pack Quantity: 2300

E.2.
E.2.1. SerialNum Register
E.2.2. LotHistory Register
E.2.3. Jedec Register
E.2.4. Algorithm Register
E.2.5. EEPageSize Register
E.2.6. EncReadSize Register
E.2.7. EncWrtSize Register
Configuration Register Descriptions
Each register in the configuration memory is briefly described in this section. References are provided to detail information in
other sections of this specification. The registers are described in the same order that they occur in the memory map in
Section E.1.
SerialNum is an eight byte read-only register that is programmed by Atmel at the factory. The contents of this register are
guaranteed to be unique on each unit over the production life of the ATAES132 product family. The contents of this register
can optionally be included in the cryptographic calculations by setting mode bit 6 to 1b as described in the command
definitions in Section 7. This register cannot be changed by the customer.
It is recommended that the SerialNum register value be used to perform key diversification.
LotHistory is an eight byte read-only register that is programmed by Atmel at the factory. This register contains proprietary
data which is not intended for customer use. This register cannot be changed by the customer.
Jedec is a two byte read-only register that is programmed by Atmel at the factory. The Jedec register always contains
0x001F, which is the Jedec manufacturing identification code assigned to Atmel. This register cannot be changed by the
customer.
Algorithm is a two byte read-only register that is programmed by Atmel at the factory. The default value 0x0000 indicates 128
bit AES-CCM. This register cannot be changed by the customer.
EEPageSize is a one byte read-only register that is programmed by Atmel at the factory. The default value 0x20 indicates a 32
byte physical EEPROM page size. This register cannot be changed by the customer.
EncReadSize is a one byte read-only register that is programmed by Atmel at the factory. The default value 0x20 indicates
that 32 bytes is the maximum data length which can be returned by the EncRead command. This register cannot be changed
by the customer.
EncWrtSize is a one byte read-only register that is programmed by Atmel at the factory. The default value 0x20 indicates that
32 bytes is the maximum data length which can be written using the EncWrite command. This register cannot be changed by
the customer.
Atmel ATAES132 Preliminary Datasheet
8760A−CRYPTO−5/11
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