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參數(shù)資料
| 型號(hào)： | MBM29LV002T-10 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 2M (256K ×8) Bit Flash Memory(2M (256K ×8)位 單5V 電源電壓閃速存儲(chǔ)器) |
| 中文描述： | 200萬（256K × 8）位閃存（200萬（256K × 8）位單5V的電源電壓閃速存儲(chǔ)器） |
| 文件頁數(shù)： | 12/45頁 |
| 文件大小： | 406K |
| 代理商： | MBM29LV002T-10 |
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12
MBM29LV002T
-10/-12
/MBM29LV002B
-10/-12
the same. Sector addresses must be held constant during the WE pulse. See figures 14 and 21 for sector
protection waveforms and algorithm.
To verify programming of the protection circuitry, the programming equipment must force V
ID
on address pin A
9
with CE and OE at V
IL
and WE at V
IH
. Scanning the sector addresses (A
17
, A
16
, A
15
, A
14
, and A
13
) while (A
10
, A
6
,
A
1
, A
0
) = (0, 0, 1, 0) will produce a logical “1” code at device output DQ
0
for a protected sector. Otherwise the
devices will read 00H for unprotected sector. In this mode, the lower order addresses, except for A
0
, A
1
, A
6
, and
A
10
are DON’T CARES. Address locations with A
1
= V
IL
are reserved for Autoselect manufacturer and device
codes.
It is also possible to determine if a sector is protected in the system by writing an Autoselect command. Performing
a read operation at the address location XX02H, where the higher order addresses (A
17
, A
16
, A
15
, A
14
, and A
13
)
are the sector address will produce a logical “1” at DQ
0
for a protected sector. See Tables 3.1 and 3.2 for Autoselect
codes.
Temporary Sector Unprotection
This feature allows temporary unprotection of previously protected sectors of the MBM29LV002T/002B devices
in order to change data. The Sector Unprotection mode is activated by setting the RESET pin to high voltage
(12 V). During this mode, formerly protected sectors can be programmed or erased by selecting the sector
addresses. Once the 12 V is taken away from the RESET pin, all the previously protected sectors will be protected
again. See figure 15 and 22.
Table 4 Sector Address Tables (MBM29LV002T)
Sector
Address
A
17
A
16
A
15
A
14
A
13
Address Range
SA0
0
0
X
X
X
00000H to 0FFFFH
SA1
0
1
X
X
X
10000H to 1FFFFH
SA2
1
0
X
X
X
20000H to 2FFFFH
SA3
1
1
0
X
X
30000H to 37FFFH
SA4
1
1
1
0
0
38000H to 39FFFH
SA5
1
1
1
0
1
3A000H to 3BFFFH
SA6
1
1
1
1
X
3C000H to 3FFFFH
Table 5 Sector Address Tables (MBM29LV002B)
Sector
Address
A
17
A
16
A
15
A
14
A
13
Address Range
SA0
0
0
0
0
X
00000H to 03FFFH
SA1
0
0
0
1
0
04000H to 05FFFH
SA2
0
0
0
1
1
06000H to 07FFFH
SA3
0
0
1
X
X
08000H to 0FFFFH
SA4
0
1
X
X
X
10000H to 1FFFFH
SA5
1
0
X
X
X
20000H to 2FFFFH
SA6
1
1
X
X
X
30000H to 3FFFFH
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