MX29LV640BU Macronix International, MX29LV640BU Datasheet - Page 48

• Manufacturer Part Number: MX29LV640BU
• Description: 64M-BIT [4M x 16] CMOS EQUAL SECTOR FLASH MEMORY
• Manufacturer: Macronix International

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Figure 16. SECTOR GROUP PROTECTION ALGORITHM (A9, OE# Control)
P/N:PM1081
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
Set Up Sector Addr
Activate WE# Pulse
Read from Sector
Time Out 150us
Addr=SA, A1=1
Sector Protection
Protect Another
PLSCNT=1
Data=01H?
START
A6=VIL
Complete
48
Sector?
MX29LV640BU
Yes
.
REV. 1.0, MAR. 08, 2005