參數(shù)資料
型號: W29D040C-55C
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 512K X 8 FLASH 5V PROM, 55 ns, PDIP32
封裝: PLASTIC, DIP-32
文件頁數(shù): 5/40頁
文件大?。?/td> 280K
代理商: W29D040C-55C
W29D040C
Publication Release Date: January 1999
- 13 -
Revision A1
Hardware Sequence Flags
STATUS
DQ7
DQ6
DQ5
DQ3
DQ2
Byte Programming
DQ7
Toggle
0
No Tog
Program/Erase in Auto-Erase
0
Toggle
0
1
(Note 1)
In Progress
Erase
suspend
Erase sector address
1
No Tog
0
1
Toggle
mode
Non-erase sector address
Data
Program in erase suspend
DQ7 (Note 2)
Toggle
0
1
1 (Note
1)
Exceeded
Bye Programming
DQ7
Toggle
1
0
No Tog
Time
Programming/Erase in Auto-Erase
0
Toggle
1
(Note 3)
Limits
Program in erase suspend
DQ7
Toggle
1
(Note 3)
Note:
1. DQ2 can be toggles when sector address applied is that of an erasing sector. Conversely, DQ2 cannot be toggle
when
the sector address applied is that of a non-erasing sector. DQ2 is used to determine which are erasing and
which are
not.
2. These status flags apply when outputs are read from the address of a erase-suspended sector.
3. If DQ5 is high (exceeded timing limits), successive reads from a problem sector will cause DQ2 will stop toggling.
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