MX26LV160AT Macronix International, MX26LV160AT Datasheet - Page 38

• Manufacturer Part Number: MX26LV160AT
• Description: 16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY BOOT SECTOR HIGH SPEED eLiteFlashTM MEMORY
• Manufacturer: Macronix International

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Figure 14. IN-SYSTEM CHIP UNPROTECTION ALGORITHM WITH RESET#=VID
P/N:PM1123
Increment PLSCNT
PLSCNT=1000?
Device failed
No
Yes
No
write 90H to sector address
Remove VID from RESET#
Read from sector address
Chip unprotect complete
Set up first sector address
with A6=0, A1=1, A0=0
with A6=0, 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
START
verified?
MX26LV160AT/AB
Wait 1us
38
Yes
Yes
Yes
No
?
Yes
No
No
Set up next sector address
Protect all sectors
Temporary Sector
Unprotect Mode
REV. 1.1, NOV. 18, 2004