AT88SC1608-10SU-00 Atmel, AT88SC1608-10SU-00 Datasheet - Page 7

• Manufacturer Part Number: AT88SC1608-10SU-00
• Description: IC EEPROM 16KBIT 1MHZ 8SOIC
• Manufacturer: Atmel
• Series: CryptoMemory®r

Specifications of AT88SC1608-10SU-00

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 16K (2K x 8)
• Speed: 1MHz
• Interface: Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: SOIC
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7. Configuration Zone
7.1
0971H–SMEM–6/08
Identification Number (Nc)
•
Eight 8-bit access registers defined by the issuer (enable if “0”). The access register for each
user zone will specify the privileges and requirements for access to that zone.
Table 7-1.
•
If enabled (WPE = “0”), the user is required to verify the write password to allow write operations
in the user zone. If disabled (WPE = “1”), all write operations are allowed within the zone. Verifi-
cation of the write password also allows the read and write passwords to be changed. During
personalization (PER = “1”) the WPE bit is forced active even if set to “1”. This forces the issuer
to verify the write password in order to write data to the user zone. This allows the security code
(Write 7 password) to lock write functions during transportation.
•
If enabled (RPE = “0”), the user is required to verify either the read password or write password
to allow read operations in the user zone. Read operations initiated without a verified password
will return the status of the fuse bits ($00). Verification of the write password will always allow
read access to the zone. RPE = “0” and WPE = “1” is allowed but is not recommended.
•
If enabled (ATE = “0”), a valid authentication sequence must be completed before access is
allowed to the user zone. If disabled (ATE = “1”), authentication is not required for access.
•
These three bits define which of the eight password sets must be presented to allow access to
the user zone. Each access register may point to a unique password set, or access registers for
multiple zones may point to the same password set. In this case, verification of a single pass-
word will open several zones, combining the zones into a single larger zone.
•
If enabled (MDF = “0”), no write access is allowed in the zone at any time.
•
If enabled (PGO = “0”), data within the zone may be changed from “1” to “0” but never from “0” to
“1”.
An identification number with up to 56 bits is defined by the issuer and should be unique for each
card.
• Answer-to-reset: 32-bit register defined by Atmel
• Lot History Code: 32-bit register defined by Atmel
• Fab Code: 16-bit register defined by Atmel
• Card Manufacturer Code: 32-bit register defined by the card manufacturer
WPE
Bit 7
Access Registers
Write Password Enable (WPE)
Read Password Enable (RPE)
Authentication Enable (ATE)
Password Set Select (PW2, PW1, PW0)
Modify Forbidden (MDF)
Program Only (PGO)
Bit 6
RPE
Access Registers
Bit 5
ATE
Bit 4
PW2
Bit 3
PW1
Bit 2
PW0
Bit 1
MDF
AT88SC1608
Bit 0
PGO
7