MX29SL800CT Macronix International, MX29SL800CT Datasheet - Page 42

• 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 15. IN-SYSTEM CHIP UNPROTECTION ALGORITHM WITH RESET#=VID
P/N:PM1224
Increment PLSCNT
PLSCNT=1000?
Device failed
No
Yes
No
write 40H to sector address
Remove VID from RESET#
Read from sector address
Chip unprotect complete
Set up first sector address
with A6=1, A1=1, A0=0
with A6=1, A1=1, A0=0
Write reset command
Verify chip unprotect
A6=1, A1=1, A0=0
Chip unprotect :
write 60H with
RESET#=VID
Cycle=60H ?
Wait 50ms
Data=00H
Last sector
First Write
protected?
PLSCNT=1
All sector
verified?
START
Wait 1us
42
Yes
Yes
Yes
No
MX29SL800C T/B
?
Yes
No
No
Set up next sector address
Protect all sectors
Temporary Sector
Unprotect Mode
REV. 1.0, APR. 20, 2006