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W39V040FAQ Datasheet(PDF) 25 Page - Winbond

Part # W39V040FAQ
Description  512K X 8 CMOS FLASH MEMORY WITH FWH INERFACE
PDF  36 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W39V040FAQ Datasheet(HTML) 25 Page - Winbond

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W39V040FA
Publication Release Date: December 19, 2002
- 25 -
Revision A2
Timing Waveforms, for FWH Interface Mode, continued
Program Cycle Timing Diagram
FWH4
#RESET
FWH[3:0 ]
1st Start
IDSEL
Load Address "5555" in 7 Clocks
CLK
1 Clock
2 Clocks
Load Data "AA" in 2 Clocks
1010b
1010b
Write the 1st command to the device in FWH mode.
2nd Start
Load Address "2AAA" in 7 Clocks
1 Clock
2 Clocks
Load Data "55"
in 2 Clocks
0101b
0101b
Write the 2nd command to the device in FWH mode.
3rd Start
Load Address "5555" in 7 Clocks
1 Clock
2 Clocks
Load Data "A0"
in 2 Clocks
1010b
0000b
Write the 3rd command to the device in FWH mode.
4th Start
Load Ain in 7 Clocks
FWH4
#RESET
FWH[3:0 ]
CLK
FWH4
#RESET
FWH[3:0 ]
CLK
FWH4
#RESET
FWH[3:0 ]
CLK
Sync
Internal
program start
TAR
1 Clock
2 Clocks
A[15:12]
Load Din in 2 Clocks
D[7:4]
Write the 4th command(target location to be programmed) to the device in FWH mode.
A[11:8]
A[7:4]
A[3:0]
D[3:0]
1111b
Tri-State
0000b
Data
Address
Address
Address
Address
Sync
TAR
Data
Sync
TAR
Data
Sync
TAR
Data
1111b
Tri-State
0000b
1111b
Tri-State
0000b
1111b
Tri-State
0000b
IDSEL
Internal
program start
IDSEL
IDSEL
0000b
0000b
0000b
0000b
X101b
0101b
0101b
0101b
X010b
1010b
1010b
1010b
X101b
0101b
0101b
0101b
M Size
M Size
M Size
M Size
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XA[18:16]b
XXXXb
XXXXb
XXXXb
XXXXb
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
Start next
command
1 Clock
2 Clocks
TAR
1111b
Tri-State
Start next
command
1 Clock
2 Clocks
TAR
1111b
Tri-State
Start next
command
1 Clock
2 Clocks
TAR
1111b
Tri-State
TAR
2 Clocks
1111b Tri-State



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