MX29LV320ML Macronix International, MX29LV320ML Datasheet - Page 50

• Manufacturer Part Number: MX29LV320ML
• Description: 32M-BIT SINGLE VOLTAGE 3V ONLY UNIFORM SECTOR FLASH MEMORY
• Manufacturer: Macronix International

Figure 19. CHIP UNPROTECT FLOWCHART (A9, OE# Control)
P/N:PM1136
Sector Addr
Increment
* It is recommended before unprotect whole chip, all sectors should be protected in advance.
No
Set Up First Sector Addr
Read Data from Device
Write Reset Command
Remove VID from A9
Set OE#=CE#=VIL
Activate WE# Pulse
Protect All Sectors
Time Out 15ms
Set OE#=A9=VID
A9=VID, A1=1
All sectors have
CE#=VIL, A6=1
been verified?
PLSCNT=1
Chip Unprotect
Data=00H?
START
Complete
50
MX29LV320M H/L
Yes
Yes
No
PLSCNT=1000?
Device Failed
Increment
PLSCNT
Yes
No
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REV. 1.1, AUG. 11, 2005