MX29F040QC-12 View Datasheet(PDF) - Macronix International
Part Name
Description
MFG CO.
'MX29F040QC-12' PDF : 40 Pages View PDF
CHIP UNPROTECTION ALGORITHM FOR SYSTEM WITH 12V
MX29F040
Increment
Sector Addr
START
Protect All Sectors
PLSCNT=1
Set OE=A9=VID
CE=VIL,A6=1
Activate WE Pulse
Time Out 12ms
Set OE=CE=VIL
A9=VID,A1=1
Set Up First Sector Addr
Read Data from Device
No
Data=00H?
Yes
No
All sectors have
been verified?
Yes
Remove VID from A9
Write Reset Command
Chip Unprotect
Complete
Increment
PLSCNT
No
PLSCNT=1000?
Yes
Device Failed
* It is recommended before unprotect whole chip, all sectors should be protected in advance.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
27
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