MBM29LV400TC Fujitsu Microelectronics, Inc., MBM29LV400TC Datasheet - Page 51

• Manufacturer Part Number: MBM29LV400TC
• Description: 4m 512k X 8/256k X 16 Bit
• Manufacturer: Fujitsu Microelectronics, Inc.

FAST MODE ALGORITHM
Remove V
Write Reset Command
Device is Operating in
MBM29LV400TC
Increment PLSCNT
Unprotection Mode
Temporary Sector
PLSCNT = 25?
Device Failed
ID
from RESET
No
Yes
Figure 26
No
No
Extended Sector Protection Algorithm
To Setup Sector Protection
To Verify Sector Protection
(A
(A
Read from Sector Address
(A
Remove V
Protection Other Sector
Write Reset Command
0
0
0
To Sector Protection
= V
= V
= V
-70/-90/-12
Protection Entry?
Sector Protection
Extended Sector
Write XXXH/60H
Time Out 150 s
Write SPA/40H
Write SPA/60H
RESET = V
Data = 01H?
PLSCNT = 1
IL
IL
IL
Wait to 4 s
Completed
, A
, A
, A
Start
1
1
1
ID
= V
= V
= V
?
from RESET
Yes
IH
IH
IH
No
Yes
, A
, A
, A
ID
6
6
6
/MBM29LV400BC
= V
= V
= V
IL
IL
IL
)
)
)
Yes
Setup Next Sector Address
-70/-90/-12
51