參數(shù)資料
型號: W29D040CT55C
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 512K X 8 FLASH 5V PROM, 55 ns, PDSO32
封裝: TSOP-32
文件頁數(shù): 18/40頁
文件大?。?/td> 280K
代理商: W29D040CT55C
W29D040C
Publication Release Date: January 1999
- 25 -
Revision A1
To insure the command has been accepted, the system software should check the status of DQ3 prior to and following each
subsequent sector erase command. If DQ3 were high on the second status check, the command may not have been
accepted.
EMBEDDED ALGORITHMS
Start
Read Byte
(DQ0-DQ7)
Address = VA
Pass
Fail
DQ7 = Data
?
No
Yes
DQ5 = 1
?
No
Yes
Read Byte
(DQ0-DQ7)
Address = VA
DQ7 = Data
?
Yes
Data Polling Algorithm
VA = Byte address for programming
= Any of the sector addresses within
the sector being erased during sector
erase operation
= Valid address equals any non-
protected sector group address
during chip erase
No
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