MBM29LV400TC-55PF Meet Spansion Inc., MBM29LV400TC-55PF Datasheet - Page 47

• Manufacturer Part Number: MBM29LV400TC-55PF
• Description: Flash Memory Cmos 4m 512k ? 8/256k ? 16 Bit
• Manufacturer: Meet Spansion Inc.

46
MBM29LV400TC
5.
Sector Protection Algorithm
*: A
-1
is V
IL
on byte mode.
Write Reset Command
Increment PLSCNT
Remove V
PLSCNT = 25?
Device Failed
-55/70/90
ID
No
Yes
from A
9
/MBM29LV400BC
No
(A
(
WE = V
(A
17
CE = V
Protect Another Sector?
Write Reset Command
Addr. = SPA, A
A
Setup Sector Addr.
, A
Activate WE Pulse
Remove V
OE = V
9
Read from Sector
6
Time out 100 s
Sector Protection
should remain V
= A
16
Data = 01h?
A
, A
PLSCNT = 1
Completed
IH
6
IL
0
= A
, RESET = V
= V
, CE = OE = V
Start
15
ID
, A
, A
0
IL
ID
Yes
No
= V
, A
14
9
from A
1
= V
, A
1
= V
IL
= V
13
ID
IH
,
, A
9
IH
ID
,
)
IH
)
IL
*
12
)
Yes
-55/70/90