- 您现在的位置：买卖IC网 > PDF目录271228 > S71PL254JC0BAITU3 (SPANSION LLC) SPECIALTY MEMORY CIRCUIT, PBGA84 PDF资料下载
参数资料
| 型号： | S71PL254JC0BAITU3 |
| 厂商： | SPANSION LLC |
| 元件分类： | 存储器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA84 |
| 封装： | 8 X 11.60 MM, 1.40 MM HEIGHT, FBGA-84 |
| 文件页数： | 157/188页 |
| 文件大小： | 5078K |
| 代理商： | S71PL254JC0BAITU3 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页当前第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页第167页第168页第169页第170页第171页第172页第173页第174页第175页第176页第177页第178页第179页第180页第181页第182页第183页第184页第185页第186页第187页第188页
May 21, 2004 S29PL127_064_032J_00_A1
S29PL127J/S29PL064J/S29PL032J for MCP
69
Prelimin ary
Protection Mode Locking Bit is programmed, the Persistent Sector Protection
Locking Bit program circuitry is disabled, thereby forcing the device to remain in
the Password Protection mode. Exiting the Mode Locking Bit Program command
is accomplished by writing the Read/Reset command.
Persistent Sector Protection Mode Locking Bit Program Command
The Persistent Sector Protection Mode Locking Bit Program Command programs
the Persistent Sector Protection Mode Locking Bit, which prevents the Password
Mode Locking Bit from ever being programmed. If the Persistent Sector Protec-
tion Mode Locking Bit is verified as programmed without margin, the Persistent
Sector Protection Mode Locking Bit Program Command should be reissued to im-
prove program margin. By disabling the program circuitry of the Password Mode
Locking Bit, the device is forced to remain in the Persistent Sector Protection
mode of operation, once this bit is set. Exiting the Persistent Protection Mode
Locking Bit Program command is accomplished by writing the Read/Reset
command.
SecSi Sector Protection Bit Program Command
The SecSi Sector Protection Bit Program Command programs the SecSi Sector
Protection Bit, which prevents the SecSi sector memory from being cleared. If the
SecSi Sector Protection Bit is verified as programmed without margin, the SecSi
Sector Protection Bit Program Command should be reissued to improve program
margin. Exiting the VCC-level SecSi Sector Protection Bit Program Command is
accomplished by writing the Read/Reset command.
PPB Lock Bit Set Command
The PPB Lock Bit Set command is used to set the PPB Lock bit if it is cleared either
at reset or if the Password Unlock command was successfully executed. There is
no PPB Lock Bit Clear command. Once the PPB Lock Bit is set, it cannot be cleared
unless the device is taken through a power-on clear or the Password Unlock com-
mand is executed. Upon setting the PPB Lock Bit, the PPBs are latched into the
DYBs. If the Password Mode Locking Bit is set, the PPB Lock Bit status is reflected
as set, even after a power-on reset cycle. Exiting the PPB Lock Bit Set command
is accomplished by writing the Read/Reset command (only in the Persistent Pro-
tection Mode).
DYB Write Command
The DYB Write command is used to set or clear a DYB for a given sector. The high
order address bits (Amax–A12) are issued at the same time as the code 01h or
00h on DQ7-DQ0. All other DQ data bus pins are ignored during the data write
cycle. The DYBs are modifiable at any time, regardless of the state of the PPB or
PPB Lock Bit. The DYBs are cleared at power-up or hardware reset.Exiting the
DYB Write command is accomplished by writing the Read/Reset command.
Password Unlock Command
The Password Unlock command is used to clear the PPB Lock Bit so that the PPBs
can be unlocked for modification, thereby allowing the PPBs to become accessible
for modification. The exact password must be entered in order for the unlocking
function to occur. This command cannot be issued any faster than 2 s at a time
to prevent a hacker from running through all 64-bit combinations in an attempt
to correctly match a password. If the command is issued before the 2 s execu-
tion window for each portion of the unlock, the command will be ignored.
相关PDF资料 |
PDF描述 |
|---|---|
| S71PL032JF0BFW074 | SPECIALTY MEMORY CIRCUIT, PBGA56 |
| S29AL016D90MFN011 | 1M X 16 FLASH 3V PROM, 90 ns, PDSO44 |
| SM-5MIN-A-TL-26 | RF COAXIAL RELAY, SP5T, FAILSAFE, 2875mW (COIL), 26500MHz, PANEL MOUNT |
| SM-5MIN-A-TL | RF COAXIAL RELAY, SP5T, FAILSAFE, 2875mW (COIL), 18000MHz, PANEL MOUNT |
| SM-5MIN-A | RF COAXIAL RELAY, SP5T, FAILSAFE, 2875mW (COIL), 18000MHz, PANEL MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S71PL254JC0BAW0Z0 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:Based MCPs |
| S71PL254JC0BAW0Z2 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:Based MCPs |
| S71PL254JC0BAW0Z3 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:Based MCPs |
| S71PL254JC0BAW9Z0 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:Based MCPs |
| S71PL254JC0BAW9Z2 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:Based MCPs |
发布紧急采购，3分钟左右您将得到回复。