- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄192300 > S29PL032J65BFI150 (SPANSION LLC) 2M X 16 FLASH 3V PROM, 65 ns, PBGA56 PDF資料下載
參數(shù)資料
| 型號： | S29PL032J65BFI150 |
| 廠商： | SPANSION LLC |
| 元件分類： | PROM |
| 英文描述： | 2M X 16 FLASH 3V PROM, 65 ns, PBGA56 |
| 封裝： | 7 X 9 MM, LEAD FREE, FBGA-56 |
| 文件頁數(shù)： | 42/94頁 |
| 文件大?。?/td> | 949K |
| 代理商： | S29PL032J65BFI150 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁當(dāng)前第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁
July 29, 2005 S29PL-J_00_A8
S29PL-J
45
Advance
Information
Persistent Sector Protection
The Persistent Sector Protection method replaces the 12 V controlled protection method in pre-
vious flash devices. This new method provides three different sector protection states:
Persistently Locked—The sector is protected and cannot be changed.
Dynamically Locked—The sector is protected and can be changed by a simple command.
Unlocked—The sector is unprotected and can be changed by a simple command.
To achieve these states, three types of “bits” are used:
Persistent Protection Bit
Persistent Protection Bit Lock
Persistent Sector Protection Mode Locking Bit
Persistent Protection Bit (PPB)
A single Persistent (non-volatile) Protection Bit is assigned to a maximum four sectors (see the
sector address tables for specific sector protection groupings). All 4 Kword boot-block sectors
have individual sector Persistent Protection Bits (PPBs) for greater flexibility. Each PPB is individ-
ually modifiable through the PPB Write Command.
The device erases all PPBs in parallel. If any PPB requires erasure, the device must be instructed
to preprogram all of the sector PPBs prior to PPB erasure. Otherwise, a previously erased sector
PPBs can potentially be over-erased. The flash device does not have a built-in means of prevent-
ing sector PPBs over-erasure.
Persistent Protection Bit Lock (PPB Lock)
The Persistent Protection Bit Lock (PPB Lock) is a global volatile bit. When set to “1”, the PPBs
cannot be changed. When cleared (“0”), the PPBs are changeable. There is only one PPB Lock
bit per device. The PPB Lock is cleared after power-up or hardware reset. There is no command
sequence to unlock the PPB Lock.
Dynamic Protection Bit (DYB)
A volatile protection bit is assigned for each sector. After power-up or hardware reset, the con-
tents of all DYBs is “0”. Each DYB is individually modifiable through the DYB Write Command.
When the parts are first shipped, the PPBs are cleared, the DYBs are cleared, and PPB Lock is
defaulted to power up in the cleared state – meaning the PPBs are changeable.
When the device is first powered on the DYBs power up cleared (sectors not protected). The Pro-
tection State for each sector is determined by the logical OR of the PPB and the DYB related to
that sector. For the sectors that have the PPBs cleared, the DYBs control whether or not the sec-
tor is protected or unprotected. By issuing the DYB Write command sequences, the DYBs will be
set or cleared, thus placing each sector in the protected or unprotected state. These are the
so-called Dynamic Locked or Unlocked states. They are called dynamic states because it is very
easy to switch back and forth between the protected and unprotected conditions. This allows
software to easily protect sectors against inadvertent changes yet does not prevent the easy re-
moval of protection when changes are needed. The DYBs maybe set or cleared as often as
needed.
The PPBs allow for a more static, and difficult to change, level of protection. The PPBs retain their
state across power cycles because they are non-volatile. Individual PPBs are set with a command
but must all be cleared as a group through a complex sequence of program and erasing com-
mands. The PPBs are also limited to 100 erase cycles.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S29PL127J70BFI000 | 8M X 16 FLASH 3V PROM, 70 ns, PBGA80 |
| S29XS064R0PBHW010 | 4M X 16 FLASH 1.8V PROM, 80 ns, PBGA44 |
| S2C3R-1-12-H | 4000 MHz - 12000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 2 dB INSERTION LOSS |
| S2C5R-1-12-RC | 4000 MHz - 18000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 2.8 dB INSERTION LOSS |
| S2H3R-1H | 10 MHz - 1000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 1.2 dB INSERTION LOSS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29PL032J70BAI120 | 功能描述:閃存 32Mb 3V 70ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)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 |
| S29PL032J70BAI122 | 功能描述:閃存 32MB 閃存 3V 70ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)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 |
| S29PL032J70BAW120 | 功能描述:閃存 32MB 閃存 3V 70ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)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 |
| S29PL032J70BFI120 | 功能描述:閃存 32Mb 3V 70ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)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 |
| S29PL032J70BFI120(E) | 制造商:Spansion 功能描述:Cut Tape |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。