w19b320b Winbond Electronics Corp America, w19b320b Datasheet - Page 37

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

7.11 Erase Algorithm
Notes:
7.12 Data Polling Algorithm
Notes:
1.
2. See DQ3 section for the sector erase timer details.
1. VA = Valid address for programming. During a sector erase operation; a valid address is any sector address within the
2. DQ7 should be rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5.
See Command Definitions Table for erase command sequence details.
sector being erased. During chip erase, a valid address is any non-protected sector address.
No
No
Command Sequence
Data Poll to Erasing
Erase Completed
Bank from System
Write Program
(Note1,2)
Data=FFh?
START
Read DQ7-DQ0
Read DQ7-DQ0
DQ7=Data?
DQ7=Data?
Addr=VA
START
DQ5=1?
Addr=VA
Yes
FAIL
No
No
Yes
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W19B320BT/B DATASHEET
Yes
Yes
in progress
Embedded
algorithm
Erase
PASS
Publication Release Date:Dec. 25, 2007
Revisionv A3