W39V040FBP WINBOND [Winbond], W39V040FBP Datasheet - Page 29

• Manufacturer Part Number: W39V040FBP
• Description: 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
• Manufacturer: WINBOND [Winbond]

Timing Waveforms for FWH Interface Mode, continued
Sector Erase Timing Diagram
FWH[3:0]
#RESET
FWH4
CLK
#RESET
FWH[3:0]
#RESET
FWH[3:0]
FWH4
FWH4
#RESET
FWH[3:0]
#RESET
FWH[3:0]
FWH[3:0]
FWH4
#RESET
FWH4
CLK
FWH4
CLK
CLK
CLK
CLK
1 Clock
1 Clock
1 Clock
1 Clocks
1 Clock
1 Clock
3rd Start
5th Start
2nd Start
4th Start
6th Start
1st Start
1110b
1110b
1110b
1110b
1110b
1110b
1 Clocks
1 Clock
1 Clock
1 Clock
1 Clock
IDSEL
0000b
1 Clock
IDSEL
0000b
0000b
0000b
IDSEL
0000b
IDSEL
IDSEL
IDSEL
0000b
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
Write the 6th command(target sector to be erased) to the device in FWH mode.
A[18:16]
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
Load Address "5555" in 7 Clocks
Load Address "2AAA" in 7 Clocks
Write the 3rd command to the device in FWH mode.
Write the 5th command to the device in FWH mode.
Load Address "2AAA" in 7 Clocks
Load Address "5555" in 7 Clocks
Write the 2nd command to the device in FWH mode.
Write the 4th command to the device in FWH mode.
Load Sector Address in 7 Clocks
Load Address "5555" in 7 Clocks
Write the 1st command to the device in FWH mode.
X101b
X010b
Address
XXXXb
Address
X010b
Address
Address
X101b
Address
Address
X101b
1010b
1010b
0101b
0101b
XXXXb
0101b
1010b
1010b
0101b
0101b
XXXXb
0101b
- 29 -
1010b
XXXXb
1010b
0101b
0101b
0101b
M Size
M
Size
0000b
M Size
M Size
0000b
0000b
M Size
0000b
0000b
M Size
0000b
0000b
Load Data "80"
Load Data "55"
Load Data "55"
in 2 Clocks
Load Data "AA"
0000b
0101b
in 2 Clocks
0101b
in 2 Clocks
in 2 Clocks
Load Data "AA"
1010b
Load Din
in 2 Clocks
in 2 Clocks
1010b
Data
Data
Data
Data
Data
Data
1000b
0011b
0101b
0101b
1010b
1010b
Publication Release Date: April 14, 2005
1111b
1111b
1111b
1111b
1111b
1111b
2 Clocks
2 Clocks
2 Clocks
2 Clocks
2 Clocks
2 Clocks
TAR
TAR
TAR
TAR
TAR
TAR
Tri-State
Tri-State
Tri-State 0000b
Tri-State
Tri-State
Tri-State
1 Clocks
1 Clock
1 Clock
1 Clock
1 Clock
1 Clock
0000b
0000b
0000b
Sync
Sync
0000b
0000b
Sync
Sync
Sync
Sync
1111b
1111b
1111b
1111b Tri-State
1111b
1111b
2 Clocks
2 Clocks
2 Clocks
2 Clocks
TAR
TAR
2 Clocks
2 Clocks
TAR
TAR
TAR
TAR
W39V040FB
Tri-State
Tri-State
Tri-State
Tri-State
Tri-State
Internal
erase start
Internal
erase start
Start next
command
Start next
command
Start next
command
1 Clocks
Start next
command
1 Clock
1 Clock
1 Clock
Start next
command
1 Clock
Revision A3