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Part Name
Description
MX29LV004BQC-70 View Datasheet(PDF) - Macronix International
Part Name
Description
MFG CO.
MX29LV004BQC-70
4M-BIT [512K x 8] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY
Macronix International
'MX29LV004BQC-70' PDF : 54 Pages
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MX29LV004T/B
Figure 19. CHIP UNPROTECTION ALGORITHM (A9, OE Control)
Increment
Sector Addr
START
Protect All Sectors
PLSCNT=1
Set OE=A9=VID
CE=VIL,A6=1
Activate WE Pulse
Time Out 50ms
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:PM0732
REV. 1.1, SEP. 19, 2001
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