MBM29LV800TE/BE60/70/90
Start
RESET = VID
Wait to 4 µs
Device is Operating in
Temporary Sector
Unprotection Mode
No
Extended Sector
Protection Entry?
Yes
To Setup Sector Protection
Write XXXh/60h
PLSCNT = 1
To Protect Secter
Write 60h to Secter Address
(A6 = A0 = VIL, A1 = VIH)
Time out 150 µs
To Verify Sector Protection
Write 40h to Secter Address
(A6 = A0 = VIL, A1 = VIH)
Increment PLSCNT
Read from Sector Address
(Addr. = SPA, A0 = VIL,
A1 = VIH, A6 = VIL)
No
Setup Next Sector Address
No
Data = 01h?
PLSCNT = 25?
Yes
Yes
Yes
Protect Other
Group ?
Remove VID from RESET
Write Reset Command
No
Remove VID from RESET
Write Reset Command
Device Failed
Sector Protection
Completed
Extended Sector Protection Algorithm
51
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