參數(shù)資料
型號(hào)： S29PL256N70GFW003
廠商： SPANSION LLC
元件分類(lèi)： DRAM
英文描述： 256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
中文描述： 16M X 16 FLASH 3V PROM, 70 ns, PBGA84
封裝： 8 X 11.60 MM, LEAD FREE, FBGA-84
文件頁(yè)數(shù)： 44/74頁(yè)
文件大?。?/td> 1968K
代理商： S29PL256N70GFW003
44
S29PL-N MirrorBit
Flash Family
S29PL-N_00_A5 June 6, 2007
D a t a
S h e e t
( P r e l i m i n a r y )
8.
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 methods, 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 8.1 on page 44
.
Figure 8.1
Advanced Sector Protection/Unprotection
Hardw are Methods
Softw are Methods
WP# = V
IL
(All boot
sectors locked)
Password Method
(DQ2)
Persistent Method
(DQ1)
Lock Register
(One Time Programmable)
PPB Lock Bit
(
Notes 1, 2, 3
)
64-bit Passw ord
(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
(Note 4)
PPB 0
PPB 1
PPB 2
PPB N-2
PPB N-1
PPB N
Persistent
Protection Bit ( PPD)
(
Notes 5, 6
)
DYB 0
DYB 1
DYB 2
DYB N-2
DYB N-1
DYB N
Dynamic
Protection Bit ( DYB)
( Notes 7, 8, 9)
Notes:
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.
4. N = Highest Address Sector.
5. 0 = Sector Protected,
1 = Sector Unprotected.
6. PPBs programmed individually, but cleared collectively.
7. 0 = Sector Protected,
1 = Sector Unprotected.
8. Protect effective only if PPB Lock Bit is unlocked and
corresponding PPB is 1 (unprotected).
9. Volatile Bits: defaults to user choice upon power-up
(see ordering options).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29PL256N70GFWW00 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
S29PL256N70GFWW02 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
S29PL256N70GFWW03 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
S29PL256N80FAI000 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
S29PL256N80FAI002 制造商:SPANSION 制造商全稱(chēng):SPANSION 功能描述:256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
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