W19B320ABT7L
| Model | W19B320ABT7L |
| Description | Flash, 2MX16, 70ns, PDSO48, 12 X 20 MM, TSOP-48 |
| PDF file | Total 53 pages (File size: 479K) |
| Chip Manufacturer | WINBOND |
W19B320AT/B
7.8 Security Sector Protect Verify
START
Enter Security
Sector
#RESET =
V
IH
or
Wait 1
Write 60h to
any address
Write 40h to Security
V
ID
μ
s
If data = 00h,
Security Sector is
unprotected.
If data = 01h,
Security Sector is
producted.
V
IH
or
Remove
from #RESET
Write reset
command
Exit Security
Sector
Security Sector
Protect Verify
complete
V
ID
Sector Address
with A6 = 0
A1 = 1, A0 = 0
Read from Security
Sector address
with A6 = 0
A1 = 1, A0 = 0
7.9 Program Algorithm
START
Write Program
Command Sequence
Embedded
Program
algorithm
in progress
Data Poll
from System
Verify Data?
Yes
Increment Address
No
No
Last Address?
Yes
Programming
Completed
- 33 -
Publication Release Date: December 27, 2005
Revision A4
