w19b320b Winbond Electronics Corp America, w19b320b Datasheet - Page 36

• Manufacturer Part Number: w19b320b
• Description: W19b320bt/b Datasheet
• Manufacturer: Winbond Electronics Corp America

7.9
7.10 Program Algorithm
Security Sector Protect Verify
Increment Address
Read from Security
Write 40h to Security
Sector Address
A1 = 1, A0 = 0
A1 = 1, A0 = 0
Sector address
Enter Security
any address
Write 60h to
with A6 = 0
with A6 = 0
#RESET =
V
START
Wait 1 μ s
in progress
IH
Embedded
Sector
algorithm
Program
or
V
ID
No
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W19B320BT/B DATASHEET
Command Sequence
Last Address?
Write Program
Verify Data?
from System
Data Poll
Programming
Completed
Remove V
Security Sector is
Security Sector is
START
Security Sector
from #RESET
Protect Verify
Exit Security
If data = 00h,
If data = 01h,
Write reset
unprotected.
command
producted.
complete
Yes
Yes
Sector
IH
or V
No
Publication Release Date:Dec.25, 2007
ID
Revisionv A3