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PDF AT88SC102 Data sheet ( Hoja de datos )
| Número de pieza | AT88SC102 | |
| Descripción | 1K EEPROM Security Logic | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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1. Features
• 1K X 1 Serial EEPROM with Security Logic
• Two Application Zones
• Stores and Validates Security Codes
• Maximum of Four Incorrect Security Code Attempts
• Provides Transport Code Security
• Low Voltage Operation: 2.7V to 5.5V
• Manufactured using Low Power CMOS Technology
• VPP Internally Generated
• 2 µs Read Access Time; 3 ms Write Cycle Time
• ESD Protection 4,000V Minimum.
• High Reliability:
– 100,000 Program/Erase Cycles Guaranteed
– Data Retention of 10 years
2. Description
The AT88SC102 device is a low-cost, synchronous, secure memory integrated circuit,
designed for use in prepaid and loyalty smart card applications. The AT88SC102 pro-
vides 1024 bits of serial Electrically Erasable and Programmable Read Only Memory
(EEPROM) within two Application Zones, plus 64 bits in a code protected zone. Addi-
tional EEPROM memory and security logic provide security for smart card
applications. Space is provided in the EEPROM memory for manufacturing records for
both the smart card manufacturer and card issuer. After personalization, these
records, and the state of the bit which enables the Erase Counter function, are locked
and protected from modification for the lifetime of the product.
1K EEPROM–
Security Logic
with Two
Application
Zones
AT88SC102
Table 2-1. Pin Configuration
ISO Contact
Pad Name
C1 VCC
C2 RST
C3 CLK
C4 FUS
C5 GND
C6 NC
C7 I/O
C8 PGM
Description
Operating Voltage
Address Reset
Clock and Address Control
Fuse
Ground
No Connect
Bidirectional Data
Programming Control
Figure 2-1.
VCC = C1
RST = C2
CLK = C3
FUS = C4
Card Module Contact
C5 = GND
C6 = NC
C7 = I/O
C8 = PGM
1419C-SMEM-6/08
1 page  
5. Memory Map
Table 5-1. AT88SC102 Memory Diagram
Bit Address
Description
0–15
Fabrication Zone (FZ)
16–79
Issuer Zone (IZ)
80–95
Security Code (SC)
96–111
Security Code Attempts counter (SCAC)
112–175
Code Protected Zone (CPZ)
176–687
Application Zone 1 (AZ1)
688–735
Application Zone 1 Erase Key (EZ1)
736–1247
Application Zone 2 (AZ2)
1248–1279
Application Zone 2 Erase Key (EZ2)
1280–1407
Application Zone 2 Erase Counter (EC2)
1408–1423
Memory Test Zone (MTZ)
1424–1439
Manufacturer’s Zone (MFZ)
1440–1455
Block Write/Erase
1456–1471
MANUFACTURER’S FUSE
1529
EC2EN FUSE (Controls use of EC2)
1552 - 1567
ISSUER FUSE
AT88SC102
Bits Words
16 1
64 4
16 1
16 1
64 4
512 32
48 3
512 32
32 2
128 8
16 1
16 1
16 1
16 1
1
16 1
6. Memory Zones
Table 6-1. Memory Zones
Zone
Definition
Fabrication Zone
FZ (16 bits)
The 16-bit fabrication zone is programmed when the chip is manufactured and cannot be changed.
Application software may check this fabrication zone code to assure that the device was manufactured
by Atmel.
Issuer Zone
IZ (64 bits)
The 64-bit issuer zone is programmed by the card issuer during the personalization phase. It will
contain issuer-specific information, such as serial numbers and dates. This area becomes read-only
after the issuer fuse has been blown. Read access is always allowed in the issuer zone.
Security Code
SC (16 bits)
The card security code is initially set by Atmel to protect the card during transportation to the card
issuer. During personalization, this code must be verified by the AT88SC102 to allow access to the
EEPROM memory. After the security code has been verified, the code itself may be changed in either
security mode. While in personalization mode (Security Level 1), the security code gives erase and
write access to both the application zones and the code protected zone. In Security Level 2, the
security code gives write access to both the application zones and the code protected zone. Erase
access requires verification of both the security code and the erase key (EZ1 or EZ2). Verification of
the security code will set the internal flag SV to “1”. Atmel ships the device with a security code
(transportation code) pre-programmed. This protects against the unauthorized use of an
unpersonalized device and should be written to a new value during initialization.
1419C–SMEM–6/08
5
5 Page 
AT88SC102
3. R1: 2nd bit of Application Zone 1 (Bit 177)
4. R2: 2nd bit of Application Zone 2 (Bit 737)
5. MF: Manufacturers Fuse = “0” when blown
10. Memory Access Rules After Personalization – Security Mode 2(1)
Table 10-1. Access Conditions After Personalization (issuer fuse blown)
Zone
SV(2)
P1(3)
R1(4)
P2(5)
R2(6)
E1(7)
E2(8)
Read
Erase
Write
FZ x x x x x x x yes no no
IZ x x x x x x x yes no no
SC
0
1
x
x
x
x
x
x
x
x
x
x
x
x
no no no
no yes yes
SCAC
0
1
x
x
x
x
x
x
x
x
x
x
x yes no yes
x yes yes yes
CPZ
0
1
x
x
x
x
x
x
x
x
x
x
x yes no
no
x yes yes yes
0 x 0 x x x x no no no
0 x 1 x x x x yes no no
AZ1
1
1
0
0
x
x
x
x
x
x
0
1
x yes no
no
x yes yes no
1 1 x x x 0 x yes no yes
1 1 x x x 1 x yes yes yes
EZ1 x x x x x x x no no no
0 x x x 0 x x no no no
0 x x x 1 x x yes no no
AZ2
1
1
x
x
x
x
0
0
x
x
x
x
0 yes no
1 yes yes
no
no
1 x x 1 x x 0 yes no yes
1 x x 1 x x 1 yes yes yes
EZ2 x x x x x x x no no no
EC2 x x x x x x x yes no yes
MTZ
x
x
x
x
x
x
x yes yes yes
MFZ
x
x
x
x
x
x
x yes no
no
Notes:
1. Security Mode 2 Conditions:
Manufacturer Fuse = “X”
EC2EN Fuse = “1” or “0”
Issuer Fuse = “0”
FUS Pin = “X”
2. SV = “1” after validation of the security code
3. P1: 1st bit of Application Zone 1 (Bit 176)
4. R1: 2nd bit of Application Zone 1 (Bit 177)
5. P2: 1st bit of the Application Zone (Bit 736)
6. R2: 2nd bit of the Application Zone 2 (Bit 737)
7. E1 = “1” after a valid presentation of the Application Zone 1 Erase Key (EZ1)
8. E2 = “1” after a valid presentation of the Application Zone 2 Erase Key (EZ2)
Compare
no
no
yes
no
no
no
no
no
no
no
no
no
no
no
yes
no
no
no
no
no
no
yes
no
no
no
1419C–SMEM–6/08
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet AT88SC102.PDF ] | |
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