参数资料
型号: S29CL016J0PQFI123
厂商: SPANSION LLC
元件分类: PROM
英文描述: 512K X 32 FLASH 3.3V PROM, 54 ns, PQFP80
封装: LEAD FREE, PLASTIC, MO-108CB-1, QFP-80
文件页数: 38/78页
文件大小: 1825K
代理商: S29CL016J0PQFI123
September 27, 2006 S29CD-J_CL-J_00_B1
S29CD-J & S29CL-J Flash Family
41
Pr el im i n a r y
9
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
Figure 9.1 Advanced Sector Protection/Unprotection
Hardware Methods
Software Methods
WP# = VIL
(Two outermost sectors
locked in large bank)
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
(DYB)
6,7,8
5. Protect effective only if PPB Lock Bit
is unlocked and corresponding PPB
is “0” (unprotected).
6. Volatile Bits.
4. 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.
Password Method
(DQ2)
Persistent Method
(DQ1)
相关PDF资料
PDF描述
S29CL016J1MFAI123 512K X 32 FLASH 3.3V PROM, 54 ns, PBGA80
S29CL016J1MFFI030 512K X 32 FLASH 3.3V PROM, 54 ns, PBGA80
S29CL016J0JQFI022 512K X 32 FLASH 3.3V PROM, 54 ns, PQFP80
S29CL016J1MQFI132 512K X 32 FLASH 3.3V PROM, 54 ns, PQFP80
S29CL016J0JFFM123 512K X 32 FLASH 3.3V PROM, 54 ns, PBGA80
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