ATAES132-SH-ER Atmel, ATAES132-SH-ER Datasheet - Page 93

• 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.2.23. Counter Registers
E.2.24. FreeSpace Register
E.2.25. SmallZone Register
The 16 Counter registers are used to store the counter values. The default value of the counters is equivalent to a count value
of zero. See Appendix H for Counter information.
The customer can write the counter registers with the standard I
has been locked (see the LockConfig register definition in Section E.2.11).
The FreeSpace register is 96 bytes of memory for storage of customer data. The customer can write the FreeSpace register
with the standard I
definition in Section E.2.11).
The default value of the FreeSpace register is 0xFF in all bytes. The FreeSpace register can be programmed with any value –
the contents will not change the behavior of the ATAES132.
The SmallZone register is 32 bytes of memory for storage of customer data. Optionally, the first four bytes of the SmallZone
may be included in cryptographic calculations by setting mode bit 7 to 1b as described in the command definitions in Section
7. The customer can write the SmallZone register with the standard I
has been locked (see the LockSmall register definition in Section E.2.10).
The default value of the SmallZone register is 0xFF in all bytes. The SmallZone register can be programmed with any value –
the contents will not change the behavior of the ATAES132.
2
C or SPI write commands unless the configuration memory has been locked (see the LockConfig register
2
C or SPI write commands unless the configuration memory
2
C or SPI write commands unless the SmallZone register
Atmel ATAES132 Preliminary Datasheet
8760A−CRYPTO−5/11
93