- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377951 > MBM29LV320BE80 (Fujitsu Limited) 32 M (4 M X 8/2 M X 16) BIT PDF資料下載
參數(shù)資料
| 型號： | MBM29LV320BE80 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 32 M (4 M X 8/2 M X 16) BIT |
| 中文描述： | 32 M（下4米8月2日的MX 16）位 |
| 文件頁數(shù)： | 30/64頁 |
| 文件大?。?/td> | 877K |
| 代理商： | MBM29LV320BE80 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁當(dāng)前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
MBM29LV320TE/BE
80/90/10
30
11. Hidden ROM (Hi-ROM) Protect Command
There are two methods to protect the Hidden ROM area. One is to write the sector group protect setup command
(60h) , set the sector address in the Hidden ROM area and (A
6
, A
1
, A
0
)
=
(0,1,0) , and write the sector group
protect command (60h) during the Hidden ROM mode. The same command sequence could be used because
it is the same as the extension sector group protect in the past except that it is in the Hidden ROM mode and it
does not apply high voltage to RESET pin. Please see “9. Extended Sector Group Protection” in
I
FUNCTIONAL
DESCRIPTION for details of extention sector group protect setting.
The other is to apply high voltage (V
ID
) to A
9
and OE, set the sector address in the Hidden ROM area and (A
6
,
A
1
, A
0
)
=
(0,1,0) , and apply the write pulse during the Hidden ROM mode. To verify the protect circuit, apply
high voltage (V
ID
) to A
9
, specify (A
6
, A
1
, A
0
)
=
(0,1,0) and the sector address in the Hidden ROM area, and
read. When “1” appears on DQ
0
, the protect setting is completed. “0” will appear on DQ
0
if it is not protected.
Please apply write pulse agian. The same command sequence could be used for the above method because
other than the Hidden ROM mode, it is the same as the sector group protect in the past. Please see “7. Sector
Group Protection” in
I
FUNCTIONAL DESCRIPTION for details of the sector group protect setting.
Other sector group will be effected if the address other than those for Hidden ROM area is selected for the sector
group address, so please be carefull. Once it is protected, protection can not be cancelled, so please pay the
closest attention.
12. Write Operation Status
Details in “Hardware Sequence Flags Table” are all the status flags that can be used to check the status of the
device for current mode operation. During sector erase, the part provides the status flags automatically to the
I/O ports. The information on DQ
2
is address sensitive. This means that if an address from an erasing sector is
consecutively read, then the DQ
2
bit will toggle. However, DQ
2
will not toggle if an address from a non-erasing
sector is consecutively read. This allows users to determine which sectors are in erase.
Once erase suspend is entered, address sensitivity still applies. If the address of a non-erasing sector (that is,
one available for read) is provided, then stored data can be read from the device. If the address of an erasing
sector (that is, one unavailable for read) is applied, the device will output its status bits.
Hardware Sequence Flags Table
*: Successive reads from the erasing or erase-suspend sector will cause DQ
2
to toggle. Reading from non-erase
suspend sector address will indicate logic “1” at the DQ
2
bit.
Status
DQ
7
DQ
6
DQ
5
DQ
3
DQ
2
In Progress
Embedded Program Algorithm
DQ
7
Toggle
0
0
1
Embedded Erase Algorithm
0
Toggle
0
1
Toggle *
Erase
Suspended
Mode
Erase Suspend Read
(Erase Suspended Sector)
1
1
0
0
Toggle
Erase Suspend Read
(Non-Erase Suspended Sector)
Data
Data
Data
Data
Data
Erase Suspend Program
(Non-Erase Suspended Sector)
DQ
7
Toggle
0
0
1 *
Exceeded
Time Limits
Embedded Program Algorithm
DQ
7
Toggle
1
0
1
Embedded Erase Algorithm
0
Toggle
1
1
N/A
Erase
Suspended
Mode
Erase Suspend Program
(Non-Erase Suspended Sector)
DQ
7
Toggle
1
0
N/A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MBM29LV320BE80PBT | 32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE80TN | 32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE80TR | 32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE90 | 32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE90PBT | 32 M (4 M X 8/2 M X 16) BIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MBM29LV320BE80PBT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE80TN | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE80TR | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE90 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32 M (4 M X 8/2 M X 16) BIT |
| MBM29LV320BE90PBT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32 M (4 M X 8/2 M X 16) BIT |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。