AT88SC0808CA-TU Atmel, AT88SC0808CA-TU Datasheet - Page 14

• Manufacturer Part Number: AT88SC0808CA-TU
• Manufacturer: Atmel

Specifications of AT88SC0808CA-TU

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

13.3
13.4
13.5
14
Supervisor Mode
Modify Forbidden
Program Only
AT88SC0808CA [Preliminary]
The issuer may choose to require encryption for a user zone by settings made in the configura-
tion memory. Any one of four keys may be selected for use with a user zone. In this case,
activation of the encryption mode is required in order to read/write data in the zone and only
encrypted data will be transmitted. Even if not required, the host may still elect to activate
encryption provided the proper keys are known.
Enabling this feature allows the holder of one specific password to gain full access to all eight
password sets, including the ability to change passwords.
No write access is allowed in a user zone protected with this feature at any time. The user zone
must be written during device personalization prior to blowing the security fuses.
For a user zones protected by this feature, data can only be programmed (bits change from a “1”
to a “0”), but not erased (bits change from a “0” to a “1”).
5204AS–CRYPT–6/08