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参数资料
| 型号： | W78M64110SBC |
| 厂商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分类： | PROM |
| 英文描述： | 8M X 64 FLASH 3.3V PROM, 110 ns, PBGA159 |
| 封装： | 13 X 22 MM, 1.27 MM PITCH, PLASTIC, BGA-159 |
| 文件页数： | 29/50页 |
| 文件大小： | 1679K |
| 代理商： | W78M64110SBC |
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White Electronic Designs
W78M64VP-XSBX
White Electronic Designs Corp. reserves the right to change products or specications without notice.
35
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
November 2009
2010 White Electronic Designs Corp. All rights reserved
Rev. 10
FIG: 9 ADVANCED SECTOR PROTECTION/UNPROTECTION
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WP#/ACC = VIL
(Highest or Lowest
Sector 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
(DYB)
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.
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