MX29SL800CT Macronix International, MX29SL800CT Datasheet - Page 44

• Manufacturer Part Number: MX29SL800CT
• Description: 8M-BIT [1Mx8/512K x16] CMOS SINGLE VOLTAGE 1.8V ONLY FLASH MEMORY
• Manufacturer: Macronix International

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FIGURE 17. CHIP UNPROTECTION ALGORITHM (A9, OE# Control)
P/N:PM1224
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 50ms
Set OE#=A9=VID
CE#=VIL,A6=1
All sectors have
A9=VID,A1=1
been verified?
Chip Unprotect
PLSCNT=1
Data=00H?
START
Complete
44
Yes
Yes
MX29SL800C T/B
No
PLSCNT=1000?
Device Failed
Increment
PLSCNT
Yes
No
REV. 1.0, APR. 20, 2006