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S29WS064N0LBAI011 Datasheet(PDF) 45 Page - SPANSION

Part # S29WS064N0LBAI011
Description  256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY
PDF  99 Pages
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Manufacturer  SPANSION [SPANSION]
Direct Link  http://www.spansion.com
Logo SPANSION - SPANSION

S29WS064N0LBAI011 Datasheet(HTML) 45 Page - SPANSION

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January 25, 2005 S29WS-N_00_G0
43
Ad vance
Information
Figure 7.6. Write Operation Status Flowchart
START
Read 1
DQ7=valid
data?
YES
NO
Read 1
DQ5=1?
YES
NO
Write Buffer
Programming?
YES
NO
Device BUSY,
Re-Poll
Read3
DQ1=1?
YES
NO
Read 2
Read 3
Read 2
Read 3
Read 2
Read 3
Read3
DQ1=1
AND DQ7 ≠
Valid Data?
YES
NO
(Note 4)
Write Buffer
Operation
Failed
DQ6
toggling?
YES
NO
TIMEOUT
(Note 1)
(Note 3)
Programming
Operation?
DQ6
toggling?
YES
NO
YES
NO
DQ2
toggling?
YES
NO
Erase
Operation
Complete
Device in
Erase/Suspend
Mode
Program
Operation
Failed
DEVICE
ERROR
Erase
Operation
Complete
Read3=
valid data?
YES
NO
Notes:
1) DQ6 is toggling if Read2 DQ6 does not equal Read3 DQ6.
2) DQ2 is toggling if Read2 DQ2 does not equal Read3 DQ2.
3) May be due to an attempt to program a 0 to 1. Use the RESET
command to exit operation.
4) Write buffer error if DQ1 of last read =1.
5) Invalid state, use RESET command to exit operation.
6) Valid data is the data that is intended to be programmed or all 1's for
an erase operation.
7) Data polling algorithm valid for all operations except advanced sector
protection.
Device BUSY,
Re-Poll
Device BUSY,
Re-Poll
Device BUSY,
Re-Poll
(Note 1)
(Note 2)
(Note 6)
(Note 5)



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