參數(shù)資料
型號: 29LV650
廠商: Fujitsu Limited
英文描述: 64M (4M x 16) BIT
中文描述: 64M號(4米× 16)位
文件頁數(shù): 50/57頁
文件大小: 625K
代理商: 29LV650
MBM29LV650UE/651UE-
90/12
50
Setup Sector Group Addr.
(A
21
, A
20
, A
19
, A
18
, A
17
)
Activate WE Pulse
WE
=
V
IH
, CE
=
OE
=
V
IL
(A
9
should remain V
ID
)
Yes
Yes
No
No
OE
=
V
ID
, A
9
=
V
ID
,
A
6
=
CE
=
V
IL
, RESET
=
V
IH
A
0
=
V
IL
, A
1
=
V
IH
PLSCNT = 1
Time out 100
μ
s
Read from Sector Group
(Addr. = SGA,
A
0
=
V
IL
,
A
1
=
V
IH
, A
6
=
V
IL
)
Remove V
ID
from A
9
Write Reset Command
Increment PLSCNT
No
Yes
Protect Another Sector
Group
Data = 01h
PLSCNT = 25
Remove V
ID
from A
9
Write Reset Command
Start
Sector Group Protection
Completed
Device Failed
Figure 20 Sector Group Protection Algorithm
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