MX29F004TTC-70 View Datasheet(PDF) - Macronix International
Part Name
Description
MFG CO.
'MX29F004TTC-70' PDF : 39 Pages View PDF
MX29F004T/B
CHIP UNPROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V
START
PLSCNT=1
Write "unlock for chip protect/unprotect"
Command (Table 1)
Set OE=A9=VIH
CE=VIL, A6=1
Active WE Pulse to start
Data don't care
No
Toggle bit checking
Q6 not Toggled
Yes
Set OE=CE=VIL,
A9=VIH, A1=1
Read Data from Device
No
Data=00H?
Yes
Write Reset Command
Chip Unprotect
Complete
Increment
PLSCNT
No
PLSCNT=1000?
Yes
Device Failed
P/N:PM0554
REV. 1.9, OCT. 19, 2004
31
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