MX29LV004CB Macronix, MX29LV004CB Datasheet - Page 35

• Manufacturer Part Number: MX29LV004CB
• Description: 4M-Bit CMOS Single Voltage 3V Only Flash Memory
• Manufacturer: Macronix

Figure 14. IN-SYSTEM SECTOR PROTECTION ALGORITHM WITH RESET#=VID
P/N:PM1148
Increment PLSCNT
Device failed
PLSCNT=25?
No
Yes
No
Write 60H to sector address
Remove VID from RESET#
Read from sector address
Sector protect complete
with A6=0, A1=1, A0=0
Write reset command
write 40H with A6=0,
Verify sector protect :
Set up sector address
Protect another
RESET#=VID
A1=1, A0=0
Wait 150us
Data=01H
Cycle=60H
First Write
PLSCNT=1
START
Wait 1us
sector?
35
Yes
Yes
MX29LV004C T/B
No
?
Yes
No
Reset PLSCNT=1
Temporary Sector
Unprotect Mode
REV. 1.1, AUG. 30, 2005