MBM29LV800TE/BE60/70/90
Start
Setup Sector Addr.
A18, A17,A16, A15,
(
)
A14, A13, A12
PLSCNT = 1
OE = VID, A9 = VID
CE = VIL, RESET = VIH
A6 = A0 = VIL, A1 = VIH
Activate WE Pulse
Increment PLSCNT
Time out 100 µs
WE = VIH, CE = OE = VIL
(A9 should remain VID)
Read from Sector Address
Addr. = SPA, A1 = VIH
*
(
)
A6 = A0 = VIL
No
PLSCNT = 25?
Yes
No
Data = 01h?
Yes
Yes
Remove VID from A9
Write Reset Command
Protect Another Sector
?
No
Remove VID from A9
Write Reset Command
Device Failed
Sector Protection
Completed
* : A-1 is VIL on byte mode.
Sector Protection Algorithm
49
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