MX29LV040 Macronix, MX29LV040 Datasheet - Page 34

• Manufacturer Part Number: MX29LV040
• Description: 4M-Bit CMOS Single Voltage 3V Flash Memory
• Manufacturer: Macronix

Figure 14. SECTOR PROTECTION ALGORITHM
P/N:PM0722
PLSCNT=32?
Device Failed
No
Yes
No
Set WE#=VIH, CE#=OE#=VIL
OE#=VID, A9=VID, CE#=VIL
Write Reset Command
Remove VID from A9
A9 should remain VID
Activate WE# Pulse
Read from Sector
Set Up Sector Addr
Time Out 150us
Addr=SA, A1=1
34
Protect Another
Sector Protection
PLSCNT=1
Data=01H?
START
A6=VIL
Complete
Sector?
Yes
MX29LV040
REV. 1.3, DEC. 20, 2004