參數(shù)資料
型號(hào): S29AL016M90FFI010
廠商: SPANSION LLC
元件分類: PROM
英文描述: 16 MEGABIT (2M X 8 BIT / I M X 16 BIT) 3.0 VOLT ONLY BOOT SECTOR FLASH MEMORY
中文描述: 1M X 16 FLASH 3V PROM, 90 ns, PBGA64
封裝: 13 X 11 MM, LEAD FREE, FBGA-64
文件頁(yè)數(shù): 35/62頁(yè)
文件大?。?/td> 1850K
代理商: S29AL016M90FFI010
38
S29AL016M
S29AL016M_00_A7 October 11, 2006
Data
Sheet
Figure 8. Toggle Bit Algorithm
Notes:
1. Read toggle bit twice to determine whether or not it is toggling. See text.
2. Recheck toggle bit because it may stop toggling as DQ5 changes to “1”. See text.
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program or erase time has exceeded a specified inter-
nal pulse count limit. Under these conditions DQ5 produces a “1.” This is a failure
condition that indicates the program or erase cycle was not successfully
completed.
The DQ5 failure condition may appear if the system tries to program a “1” to a
location that is previously programmed to “0.” Only an erase operation can
START
No
Yes
DQ5 = 1?
No
Yes
Toggle Bit
= Toggle?
No
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Read DQ7–DQ0
Toggle Bit
= Toggle?
Read DQ7–DQ0
Twice
Read DQ7–DQ0
(Note 1)
(Notes
1, 2)
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