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參數(shù)資料
| 型號： | AM49LV128BML15NS |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲器 |
| 英文描述： | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| 中文描述： | SPECIALTY MEMORY CIRCUIT, PBGA64 |
| 封裝： | 12 X 9 MM, FBGA-64 |
| 文件頁數(shù)： | 21/98頁 |
| 文件大?。?/td> | 1016K |
| 代理商： | AM49LV128BML15NS |
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June 17, 2004
Am49LV128BM
19
Sector Group Protection and
Unprotection
The hardware sector group protection feature disables
both program and erase operations in any sector
group. The hardware sector group unprotection fea-
ture re-enables both program and erase operations in
previously protected sector groups. Sector group pro-
tection/unprotection can be implemented via two
methods.
Sector group protection/unprotection requires V
ID
on
the RESET# pin only, and can be implemented either
in-system or via programming equipment. Figure 2
shows the algorithms and Figure 24 shows the timing
diagram. This method uses standard microprocessor
bus cycle timing. For sector group unprotect, all unpro-
tected sector group must first be protected prior to the
first sector group unprotect write cycle.
The device is shipped with all sector groups unpro-
tected. AMD offers the option of programming and
protecting sector groups at its factory prior to shipping
the device through AMD’s ExpressFlash Service.
Contact an AMD representative for details.
It is possible to determine whether a sector group is
protected or unprotected. See the Sector Group Pro-
tection and Unprotection section for details.
Table 4.
Sector Group Protection/Unprotection
Address Table
Sector Group
A22–A15
SA0
00000000
SA1
00000001
SA2
00000010
SA3
00000011
SA4–SA7
000001xx
SA8–SA11
000010xx
SA12–SA15
000011xx
SA16–SA19
000100xx
SA20–SA23
000101xx
SA24–SA27
000110xx
SA28–SA31
000111xx
SA32–SA35
001000xx
SA36–SA39
001001xx
SA40–SA43
001010xx
SA44–SA47
001011xx
SA48–SA51
001100xx
SA52–SA55
001101xx
SA56–SA59
001110xx
SA60–SA63
001111xx
SA64–SA67
010000xx
SA68–SA71
010001xx
SA72–SA75
010010xx
SA76–SA79
010011xx
SA80–SA83
010100xx
SA84–SA87
010101xx
SA88–SA91
010110xx
SA92–SA95
010111xx
SA96–SA99
011000xx
SA100–SA103
011001xx
SA104–SA107
011010xx
SA108–SA111
011011xx
SA112–SA115
011100xx
SA116–SA119
011101xx
SA120–SA123
011110xx
SA124–SA127
011111xx
SA128–SA131
100000xx
SA132–SA135
100001xx
SA136–SA139
100010xx
SA140–SA143
100011xx
SA144–SA147
100100xx
SA148–SA151
100101xx
SA152–SA155
100110xx
SA156–SA159
100111xx
SA160–SA163
101000xx
SA164–SA167
101001xx
SA168–SA171
101010xx
SA172–SA175
101011xx
SA176–SA179
101100xx
SA180–SA183
101101xx
SA184–SA187
101110xx
SA188–SA191
101111xx
SA192–SA195
110000xx
SA196–SA199
110001xx
SA200–SA203
110010xx
SA204–SA207
110011xx
SA208–SA211
110100xx
SA212–SA215
110101xx
SA216–SA219
110110xx
SA220–SA223
110111xx
SA224–SA227
111000xx
SA228–SA231
111001xx
SA232–SA235
111010xx
SA236–SA239
111011xx
SA240–SA243
111100xx
SA244–SA247
111101xx
SA248–SA251
111110xx
SA252
11111100
SA253
11111101
SA254
11111110
SA255
11111111
Sector Group
A22–A15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM49LV128BML15NT | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV4608M | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM |
| AM49LV4608MB10IS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM |
| AM49LV4608MB10IT | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM |
| AM49LV4608MB11IS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM |
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