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參數(shù)資料
| 型號： | IS23SC1604 |
| 廠商： | Integrated Silicon Solution, Inc. |
| 英文描述： | Low-Cost, Low-Power, Highly Secured 16K Bits (2K x 8) Serial EEPROM(低價值，低功耗，高可靠性16K位串行EEPROM) |
| 中文描述： | 低成本，低功耗，高度安全的16K的位（2K × 8）串行EEPROM（低價值，低功耗，高可靠性16K的位串行EEPROM的） |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 76K |
| 代理商： | IS23SC1604 |
IS23SC1604
Integrated Silicon Solution, Inc. — 1-800-379-4774
ADVANCE INFORMATION
NV002-0D
01/19/99
11
ISSI
Application Zone Erase Keys Attempts Counter
(E1AC, E2AC, E3AC, E4AC)
Counts number of failed attempts to input the correct
application zone erase key to the device. After eight
consecutive failed attempts, the erasure of the corresponding
application zone will never be allowed (refer to Memory
Access Table).
Application Zones (AZ1, AZ2, AZ3, AZ4)
Each application zone provides protected data storage
space for user application. The read, write and erase access
to the application zone are controlled by the first two bits of
the zone as well as the corresponding application zone
security code and application zone erase key and the
Security Code (refer to Memory Access Table).
Memory Test Zone (MTZ)
There are no protections on this zone.
IS23SC1604 SECURITY LEVELS
There are two security levels available in IS23SC1604
which are controlled by the internal security fuse state and
FUS pin. At security level 1, the issuer has access to the
entire memory with successful Security Code (SC) validation
and the issuer is allowed to personalize the content of the
entire memory except the Fabrication Zone (FZ). At security
level 2, the memory is fully protected by various security
codes in the memory. When the card has been personalized,
the internal security fuse should be blown to protect the card
memory from unauthorized usage before the card is released
to the customer (Refer to Blowing Internal Security Fuse ).
Once the security fuse is blown, it cannot be changed again.
Below is the truth table that shows how the security level can
be set with the state of FUS input pin.
Table 3. Security Levels
FUS pin
State of the Internal FUSE
Security Level
GND
Don’t Care
2
V
CC
HIGH (FUSE not blown)
1
V
CC
LOW (FUSE blown)
2
IS23SC1604 MEMORY PARTITIONS
Fabrication Zone (FZ)
This zone is programmed by the manufacturer. After the
zone is programmed, the manufacturer disables the write/
erase access to this zone so that it cannot be changed by
card issuer or card user.
Issuer Zone (IZ)
This zone can only be programmed by the issuer during
device personalization process.
Security Code (SC)
This code serves as master security password to access to
device’s memory. A special transport code is programmed
into SC location by the manufacturer and it is only made
known to the issuer. This special code secures the transport
of the device between the manufacturer and the issuer.
After the issuer successfully validates the transport code,
SC can be freely altered as wished. After the internal
security fuse is blown, SC protects the access to the four
application zones of the device.
Security Code Attempts Counter (SCAC)
Counts number of failed attempts to input the correct
Security Code (SC) to the device. After eight consecutive
failed attempts, the device will be locked permanently.
Code Protected Zone (CPZ)
This zone is read access only. Access to erase or write to
this zone is protected by Security Code (SC).
Application Zone Security Codes (SC1, SC2, SC3, SC4)
These codes protect access to individual application zones
of the memory.
Application Zone Security Code Attempts Counter (S1AC)
Counts number of failed attempts to input the correct
Application Zone 1 Security Code to the device. After eight
consecutive failed attempts, the Application Zone 1 will be
locked permanently.
Application Zone Erase Keys (EZ1, EZ2, EZ3, EZ4)
These keys protect individual application zones (AZ1, AZ2,
AZ3, AZ4) from unauthorized attempt to erase the zone.
相關(guān)PDF資料 |
PDF描述 |
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| IS23SC4428 | 1024 x 8 Bits of EEPROM With Programmable Write Protection For Each Byte And Two Bytes of Programmable Security Code(1024 x 8位，每個字節(jié)帶可編程寫保護(hù)，2字節(jié)可編程安全密碼的EEPROM) |
| IS24C01-2G | 1K-bit/2K-bit/4K-bit/8K-bit/16K-bit 2-WIRE SERIAL CMOS EEPROM |
| IS24C01-2P | 1K-bit/2K-bit/4K-bit/8K-bit/16K-bit 2-WIRE SERIAL CMOS EEPROM |
| IS24C02-2SI | 1K-bit/2K-bit/4K-bit/8K-bit/16K-bit 2-WIRE SERIAL CMOS EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS23SC1604-P | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16-KBIT SECURED SERIAL EEPROM |
| IS23SC1604-PI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16-KBIT SECURED SERIAL EEPROM |
| IS23SC1604-X2 | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16-KBIT SECURED SERIAL EEPROM |
| IS23SC1604-X2I | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16-KBIT SECURED SERIAL EEPROM |
| IS23SC1604-X3 | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:16-KBIT SECURED SERIAL EEPROM |
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