MBM29DL400BC Fujitsu Media Devices, MBM29DL400BC Datasheet - Page 50

• Manufacturer Part Number: MBM29DL400BC
• Description: 4M (512K X 8/256K X 16) BIT
• Manufacturer: Fujitsu Media Devices

50
MBM29DL400TC
* : A
-1
is V
IL
on byte mode.
Write Reset Command
Increment PLSCNT
Remove V
PLSCNT = 25?
Device Failed
Figure 25
-55/-70/-90/-12
No
Yes
ID
from A
9
Sector Protection Algorithm
/MBM29DL400BC
No
A
(A
WE
Protect Another Sector?
6
(A
Write Reset Command
17
Remove V ID from A 9
(Addr. = SA, A
=
, A
Setup Sector Addr.
OE
Activate WE Pulse
A
CE
9
Read from Sector
A
Sector Protection
Time out 100 s
=
should remain V
1
16
0
PLSCNT = 1
Data = 01H?
V
=
=
=
, A
=
Completed
IH
V
V
V
V
, CE
15
Start
IH
ID
IL
IL
, A
, A
, A
, A
, RESET
Yes
No
14
6
=
1
9
=
, A
=
=
OE
0
V
V
V
= V
13
IL
ID
IH
=
, A
)*
,
=
V
ID
IL
V
,
12
)
IL
)
IH
Yes
-55/-70/-90/-12