MX29LV640DT Macronix International, MX29LV640DT Datasheet - Page 44

• Manufacturer Part Number: MX29LV640DT
• Description: 64m-bit Single Voltage 3V ONLY Uniform Sector Flash Memory
• Manufacturer: Macronix International

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Figure 14-1. IN-SYSTEM SECTOR GROUP PROTECT WITH RESET#=Vhv
P/N:PM1208
Retry Count=25?
Retry Count +1
Device fail
Yes
No
No
No
Temporary Unprotect Mode
Temporary Unprotect Mode
Read at Sector Address
with [A6,A1,A0]:[0,1,0]
Write Sector Address
with [A6,A1,A0]:[0,1,0]
with [A6,A1,A0]:[0,1,0]
Sector Protect Done
Write Sector Address
Write RESET CMD
Protect another
First CMD=60h?
RESET#=Vih
Wait 150us
Retry count=0
44
Data=01h?
RESET#=Vhv
Wait 1us
data: 60h
data: 40h
sector?
START
MX29LV640D T/B
Yes
Yes
No
Yes
PLSCNT=1
Reset
REV. 1.6, AUG. 16, 2008
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