W39V040FB Datasheet, PDF (29/33 Pages) Winbond – 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE

W39V040FB
Timing Waveforms for FWH Interface Mode, continued
Sector Erase Timing Diagram
CLK
#RESET
FWH4
FWH[3:0]
1st Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
Address
M Size
Data
TAR
Sync
TAR
Start next
command
XXXXb X101b 0101b 0101b 0101b 0000b 1010b 1010b 1111b Tri-State 0000b 1111b Tri-State
Load Address "5555" in 7 Clocks
Load Data "AA"
in 2 Clocks
2 Clocks 1 Clock
2 Clocks 1 Clock
Write the 1st command to the device in FWH mode.
CLK
#RESET
FWH4
FWH[3:0]
2nd Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
XXXXb
Address
X010b 1010b 1010b
1010b
M
Size
0000b
Data
0101b 0101b
Load Address "2AAA" in 7 Clocks
Load Data "55"
in 2 Clocks
Write the 2nd command to the device in FWH mode.
TAR
Sync
TAR
Start next
command
1111b Tri-State 0000b 1111b Tri-State
2 Clocks 1 Clock 2 Clocks 1 Clock
CLK
#RESET
FWH4
FWH[3:0]
3rd Start IDSEL
1110b 0000b
XXXXb
1 Clocks1 Clocks
XXXXb
Address
M Size
Data
XXXXb X101b 0101b 0101b 0101b 0000b 0000b 1000b
Load Address "5555" in 7 Clocks
Load Data "80"
in 2 Clocks
Write the 3rd command to the device in FWH mode.
TAR
Sync
TAR
Start next
command
1111b Tri-State 0000b 1111b Tri-State
2 Clocks 1 Clocks 2 Clocks 1 Clocks
CLK
#RESET
FWH4
FWH[3:0]
4th Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
Address
M Size
Data
TAR
Sync
TAR
Start next
command
XXXXb X101b 0101b 0101b 0101b 0000b 1010b 1010b 1111b Tri-State 0000b 1111b Tri-State
Load Address "5555" in 7 Clocks
Load Data "AA"
in 2 Clocks
Write the 4th command to the device in FWH mode.
2 Clocks 1 Clock
2 Clocks
1 Clock
CLK
#RESET
FWH4
FWH[3:0]
5th Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
Address
M Size
Data
TAR
Sync
TAR
Start next
command
XXXXb X010b 1010b 1010b 1010b 0000b 0101b 0101b 1111b Tri-State 0000b 1111b Tri-State
Load Address "2AAA" in 7 Clocks
Load Data "55"
in 2 Clocks
Write the 5th command to the device in FWH mode.
2 Clocks 1 Clock
2 Clocks
1 Clock
CLK
#RESET
FWH4
FWH[3:0]
Internal
erase start
6th Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
Address
M Size
Data
TAR
Sync
TAR
XXXXb A[18:16] XXXXb XXXXb XXXXb XXXXb 0000b
Load Sector Address in 7 Clocks
0000b 0011b
Load Din
in 2 Clocks
1111b Tri-State 0000b 1111b Tri-State Internal
erase start
2 Clocks 1 Clock
2 Clocks
Write the 6th command(target sector to be erased) to the device in FWH mode.
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Publication Release Date: April 14, 2005
Revision A3