MX29F200CT Macronix International, MX29F200CT Datasheet - Page 34

• Manufacturer Part Number: MX29F200CT
• Description: 2M-BIT [256Kx8/128Kx16] CMOS FLASH MEMORY
• Manufacturer: Macronix International

SECTOR PROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V
P/N:PM1250
Increment PLSCNT
PLSCNT=32?
Device Failed
No
Yes
No
Write "unlock for sector protect/unprotect"
Activate WE# Pulse to start
Write Reset Command
(A16,A15,A14,A13,A12)
Set CE#=OE#=VIL
34
Read from Sector
Set Up Sector Addr
Toggle bit checking
Command (Table1)
OE#=VIH, A9=VIH
CE#=VIL, A6=VIL
Addr=SA, A1=1
Protect Another
Sector Protection
Q6 not Toggled
PLSCNT=1
Data don't care
Data=01H?
A9=VIH
START
Complete
Sector?
MX29F200C T/B
Yes
Yes
No
No
Yes
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REV. 1.0 , DEC. 14, 2005