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參數(shù)資料
| 型號(hào)： | S29NS064N0SBJW002 |
| 廠商： | SPANSION LLC |
| 元件分類： | DRAM |
| 英文描述： | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| 中文描述： | 4M X 16 FLASH 1.8V PROM, 80 ns, PBGA44 |
| 封裝： | 7.70 X 6.20 MM, LEAD FREE, FBGA-44 |
| 文件頁數(shù)： | 28/86頁 |
| 文件大?。?/td> | 1036K |
| 代理商： | S29NS064N0SBJW002 |
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26
S29NS-N MirrorBit Flash Family
S29NS-N_00_A12 June 13, 2006
D a t a
S h e e t
( A d v a n c e
I n f o r m a t i o n )
8.29
Output Disable Mode
When the OE# input is at V
IH
, output from the device is disabled. The outputs are placed in the high
impedance state.
8.30
Secured Silicon Sector
Sector
Flash Memory Region
The Secured Silicon Sector feature provides a Flash memory region that enables permanent part
identification through an Electronic Serial Number (ESN). The Secured Silicon Sector is 256 words in length.
All reads outside of the 256 word address range will return non-valid data. The Factory Indicator Bit (DQ7) is
used to indicate whether or not the Factory Secured Silicon Sector is locked when shipped from the factory.
The Customer Indicator Bit (DQ6) is used to indicate whether or not the Customer Secured Silicon Sector is
locked when shipped from the factory. The Factory Secured Silicon bits are permanently set at the factory
and cannot be changed, which prevents cloning of a factory locked part. This ensures the security of the ESN
and customer code once the product is shipped to the field.
Spansion offers the device with a Factory Secured Silicon Sector that is locked and a Customer Secured
Silicon Sector that is either locked or is lockable. The Factory Secured Silicon Sector is always protected
when shipped from the factory, and has the Factory Indicator Bit (DQ7) permanently set to a “1”. The
Customer Secured Silicon Sector is shipped unprotected, allowing customers to utilize that sector in any
manner they choose. Once the Customer Secured Silicon Sector area is protected, the Customer Indicator
Bit will be permanently set to “1.”
The system accesses the Secured Silicon Sector through a command sequence (see
Enter/Exit Secured
Silicon Sector Command Sequence
on page 40
). After the system has written the Enter Secured Silicon
Sector command sequence, it may read the Secured Silicon Sector by using the addresses normally
occupied by sector SA0 of the memory array. This mode of operation continues until the system issues the
Exit Secured Silicon Sector command sequence, or until power is removed from the device. While Secured
Silicon Sector access is enabled, Memory Array read access, program operations, and erase operations to all
sectors other than SA0 are also available. On power-up, or following a hardware reset, the device reverts to
sending commands to the normal address space.
8.30.1
Factory Locked: Factor Secured Silicon Sector Programmed and Protected At
the Factory
In a factory sector locked device, the Factory Secured Silicon Sector is protected when the device is shipped
from the factory. The Factory Secured Silicon Sector cannot be modified in any way. The device is pre
programmed with both a random number and a secure ESN. The Factory Secured Silicon Sector is located at
addresses 000000h–00007Fh.
The device is available pre programmed with one of the following:
A random, secure ESN only within the Factor Secured Silicon Sector
Customer code within the Customer Secured Silicon Sector through the Spansion
TM
programming services
Both a random, secure ESN and customer code through the Spansion
TM
programming services.
Customers may opt to have their code programmed by Spansion through the Spansion
TM
programming
services. Spansion programs the customer’s code, with or without the random ESN. The devices are then
shipped from Spansion’s factory with the Factory Secured Silicon Sector and Customer Secured Silicon
Sector permanently locked. Contact an Spansion representative for details on using Spansion’s Spansion
TM
programming services.
Table 8.12
Secured Silicon Sector
Secure Sector
Addresses
Sector
Sector Size
Address Range
Customer
128 words
000080h-0000FFh
Factory
128 words
000000h-00007Fh
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S29NS064N0SBJW003 | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| S29NS128N0PBJW000 | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| S29NS128N0PBJW002 | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| S29NS128N0PBJW003 | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| S29NS128N0SBJW000 | Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29NS064N0SBJW003 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Simultaneous Read/Write, Multiplexed, Burst Mode Flash Memory |
| S29NS128J0LBAW00 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:110 nm CMOS 1.8-Volt only Simultaneous Read/Write, Burst Mode Flash Memories |
| S29NS128J0LBAW000 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Burst Mode Flash Memories |
| S29NS128J0LBAW002 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Burst Mode Flash Memories |
| S29NS128J0LBAW003 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Burst Mode Flash Memories |
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