參數(shù)資料
型號： S29GL032N90BFI32
廠商： SPANSION LLC
元件分類： PROM
英文描述： 2M X 16 FLASH 3V PROM, 90 ns, PBGA48
封裝： 8.15 X 6.15 MM, LEAD FREE, FBGA-48
文件頁數(shù)： 24/81頁
文件大小： 3095K
代理商： S29GL032N90BFI32
30
S29GL-N MirrorBit Flash Family
S29GL-N_01_12 October 29, 2008
Da ta
Sh e e t
8.9
Advanced Sector Protection
The device features several levels of sector protection, which can disable both the program and erase
operations in certain sectors:
8.9.1
Persistent Sector Protection
A command sector protection method that replaces the old 12 V controlled protection method.
8.9.2
Password Sector Protection
A highly sophisticated protection method that requires a password before changes to certain sectors are
permitted
8.9.3
WP# Hardware Protection
A write protect pin that can prevent program or erase operations in the outermost sectors.
The WP# Hardware Protection feature is always available, independent of the software managed protection
method chosen.
8.9.4
Selecting a Sector Protection Mode
All parts default to operate in the Persistent Sector Protection mode. The user must then choose if the
Persistent or Password Protection method is most desirable. There are two one-time programmable non-
volatile bits that define which sector protection method is used. If the user decides to continue using the
Persistent Sector Protection method, they must set the Persistent Sector Protection Mode Locking Bit.
This permanently sets the part to operate only using Persistent Sector Protection. If the user decides to use
the password method, they must set the Password Mode Locking Bit. This permanently sets the part to
operate only using password sector protection.
It is important to remember that setting either the Persistent Sector Protection Mode Locking Bit or the
Password Mode Locking Bit permanently selects the protection mode. It is not possible to switch between
the two methods once a locking bit is set. It is important that one mode is explicitly selected when the
device is first programmed, rather than relying on the default mode alone. This is so that it is not
possible for a system program or virus to later set the Password Mode Locking Bit, which would cause an
unexpected shift from the default Persistent Sector Protection Mode into the Password Protection Mode.
The device is shipped with all sectors unprotected. Spansion offers the option of programming and protecting
sectors at the factory prior to shipping the device through the ExpressFlash Service. Contact your sales
representative for details.
It is possible to determine whether a sector is protected or unprotected. See Autoselect Command Sequence
on page 42 for details.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29GL032N90DFI020 功能描述:IC FLASH 32MBIT 90NS 64BGA 制造商:cypress semiconductor corp 系列:GL-N 包裝:托盤 零件狀態(tài):在售 存儲器類型:非易失 存儲器格式:閃存 技術(shù):FLASH - NOR 存儲容量:32Mb （4M x 8，2M x 16） 寫周期時間 - 字，頁:90ns 訪問時間:90ns 存儲器接口:并聯(lián) 電壓 - 電源:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:64-LBGA 供應(yīng)商器件封裝:64 球加強(qiáng)型 BGA（9x9） 標(biāo)準(zhǔn)包裝:260
S29GL032N90DFI023 功能描述:IC FLASH 32MBIT 90NS 64BGA 制造商:cypress semiconductor corp 系列:GL-N 包裝:剪切帶（CT） 零件狀態(tài):在售 存儲器類型:非易失 存儲器格式:閃存 技術(shù):FLASH - NOR 存儲容量:32Mb （4M x 8，2M x 16） 寫周期時間 - 字，頁:90ns 訪問時間:90ns 存儲器接口:并聯(lián) 電壓 - 電源:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:64-LBGA 供應(yīng)商器件封裝:64 球加強(qiáng)型 BGA（9x9） 標(biāo)準(zhǔn)包裝:1
S29GL032N90FAI030 制造商:Spansion 功能描述:IC, FLASH - Trays
S29GL032N90FAI040 功能描述:閃存 32Mb 3V 90ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
S29GL032N90FFI010 功能描述:閃存 32Mb 3V 90ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
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