W19B320ABT7H Winbond Electronics, W19B320ABT7H Datasheet - Page 33

• Manufacturer Part Number: W19B320ABT7H
• Description: IC FLASH 32MBIT 70NS 48TSOP
• Manufacturer: Winbond Electronics

Specifications of W19B320ABT7H

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 32M (4Mx8, 2Mx16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.8 Security Sector Protect Verify
7.9 Program Algorithm
Read from Security
Increment Address
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
IH
Sector
in progress
Embedded
or
algorithm
Program
V
μ
ID
s
No
- 33 -
Command Sequence
Last Address?
Write Program
Verify Data?
Remove
from System
Security Sector is
Security Sector is
Data Poll
Programming
Completed
Security Sector
from #RESET
Protect Verify
START
Exit Security
If data = 00h,
If data = 01h,
Write reset
unprotected.
command
Sector
producted.
complete
Publication Release Date: December 27, 2005
Yes
Yes
V
IH
or
V
No
ID
W19B320AT/B
Revision A4