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MB84VB2000 Datasheet(PDF) 24 Page - fujitsu semiconductor

Part # MB84VB2000
Description  8M (x 8/x 16) FLASH MEMORY & 8M (x 8/x 16) FLASH MEMORY
PDF  28 Pages
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Manufacturer  FUJITSU [fujitsu semiconductor]
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Logo FUJITSU - fujitsu semiconductor

MB84VB2000 Datasheet(HTML) 24 Page - fujitsu semiconductor

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MB84VB2000-10/MB84VB2001-10
Figure 14
Extended Sector Protection Algorithm
To Sector Protection
Yes
No
No
PLSCNT = 1
No
Yes
Protection Other Sector
Start
Sector Protection
Extended Sector
PLSCNT = 25?
Device Failed
Remove VID from RESET
Completed
Remove VID from RESET
Write Reset Command
Write Reset Command
RESET = VID
Wait to 4
µs
Protection Entry?
To Setup Sector Protection
Write XXXH/60H
Write SPA/60H
(A0 = VIL, A1 = VIH, A6 = VIL)
Time Out 150
µs
To Verify Sector Protection
Write SPA/40H
(A0 = VIL, A1 = VIH, A6 = VIL)
Data = 01H?
?
Device is Operating in
Temporary Sector
Read from Sector Address
(A0 = VIL, A1 = VIH, A6 = VIL)
Increment PLSCNT
Setup Next Sector Address
No
Yes
Yes
Unprotection Mode
FAST MODE ALGORITHM



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