参数资料
型号: S29WS128J0PBFW002
厂商: SPANSION LLC
元件分类: PROM
英文描述: 8M X 16 FLASH 1.8V PROM, 55 ns, PBGA84
封装: 8 X 11.60 MM, LEAD FREE, FBGA-84
文件页数: 16/97页
文件大小: 2421K
代理商: S29WS128J0PBFW002
May 11, 2006 S29WS-J_00_A6
S29WS128J/064J
23
D a ta
Sh eet
Advanced Sector Protection/Unprotection
The Advanced Sector Protection/Unprotection feature disables or enables programming or erase
operations in any or all sectors and can be implemented through software and/or hardware meth-
ods, which are independent of each other. This section describes the various methods of
protecting data stored in the memory array. An overview of these methods in shown in Figure 1.
Figure 1. Advanced Sector Protection/Unprotection
Hardware Methods
Software Methods
ACC = VIL
(All sectors locked)
WP# = VIL
(All boot
sectors locked)
Password Method
(DQ2)
Persistent Method
(DQ1)
Lock Register
(One Time Programmable)
PPB Lock Bit
1,2,3
64-bit Password
(One Time Protect)
1 = PPBs Unlocked
0 = PPBs Locked
Memory Array
Sector 0
Sector 1
Sector 2
Sector N-2
Sector N-1
Sector N
3
PPB 0
PPB 1
PPB 2
PPB N-2
PPB N-1
PPB N
Persistent
Protection Bit
(PPB)
4,5
DYB 0
DYB 1
DYB 2
DYB N-2
DYB N-1
DYB N
Dynamic
Protection Bit
(PPB)
6,7,8
6. 0 = Sector Protected,
1 = Sector Unprotected.
7. Protect effective only if PPB Lock Bit
is unlocked and corresponding PPB
is “1” (unprotected).
8. Volatile Bits: defaults to user choice
upon power-up (see ordering
options).
4. 0 = Sector Protected,
1 = Sector Unprotected.
5. PPBs programmed individually,
but cleared collectively
1. Bit is volatile, and defaults to “1” on
reset.
2. Programming to “0” locks all PPBs to
their current state.
3. Once programmed to “0”, requires
hardware reset to unlock.
3. N = Highest Address Sector.
相关PDF资料
PDF描述
S29WS128J0PBAW002 8M X 16 FLASH 1.8V PROM, 55 ns, PBGA84
S2M 2 A, 1000 V, SILICON, RECTIFIER DIODE, DO-214AA
S2R72A44F12C4 UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
S2V20-4000 1.7 A, 200 V, SILICON, RECTIFIER DIODE
S2V60-4070 1.7 A, SILICON, RECTIFIER DIODE
相关代理商/技术参数
参数描述
S29WS128J0PBFW01 制造商:SPANSION 制造商全称:SPANSION 功能描述:128/64 Megabit (8/4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
S29WS128J0PBFW10 制造商:SPANSION 制造商全称:SPANSION 功能描述:128/64 Megabit (8/4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
S29WS128J0PBFW11 制造商:SPANSION 制造商全称:SPANSION 功能描述:128/64 Megabit (8/4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
S29WS128N 制造商:SPANSION 制造商全称:SPANSION 功能描述:256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY
S29WS128N0LBAI010 制造商:SPANSION 制造商全称:SPANSION 功能描述:256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY