W19B320STB9G
Model | W19B320STB9G |
Description | Flash, 2MX16, 90ns, PBGA48, TFBGA-48 |
PDF file | Total 52 pages (File size: 2M) |
Chip Manufacturer | WINBOND |
W19B(L)320ST/B
7.10 Data Polling Algorithm
START
Read DQ7-DQ0
Addr=VA
Yes
DQ7=Data?
No
No
DQ5=1?
Yes
Read DQ7-DQ0
Addr=VA
DQ7=Data?
No
FAIL
Yes
PASS
Notes:
1. VA = Valid address for programming. During a sector erase operation; a valid address is any sector address within the
sector being erased. During chip erase, a valid address is any non-protected sector address.
2. DQ7 should be rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5.
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