W39V040FAP Winbond Electronics, W39V040FAP Datasheet - Page 34

• Manufacturer Part Number: W39V040FAP
• Manufacturer: Winbond Electronics

Specifications of W39V040FAP

• Density: 4Mb
• Access Time (max): 150ns
• Interface Type: Parallel/Serial
• Boot Type: Top
• Address Bus: 4/11Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: 0C to 70C
• Package Type: PLCC
• Program/erase Volt (typ): 3.3V
• Sync/async: Async/Sync
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 20mA
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

Timing Waveforms for FWH Interface Mode, continued
11.9 Page Erase Timing Diagram
FWH[3:0]
#RESET
FWH4
CLK
FWH[3:0]
#RESET
FWH[3:0]
#RESET
#RESET
FWH4
FWH[3:0]
FWH4
#RESET
FWH[3:0]
FWH[3:0]
FWH4
#RESET
CLK
FWH4
FWH4
CLK
CLK
CLK
CLK
1 Clock
1 Clock
1 Clock
1 Clocks
1 Clock
5th Start
1 Clock
3rd Start
2nd Start
4th Start
6th Start
1st Start
1110b
1110b
1110b
1110b
1110b
1110b
1 Clock
1 Clock
1 Clocks
1 Clock
1 Clock
IDSEL
0000b
1 Clock
0000b
IDSEL
0000b
IDSEL
IDSEL
0000b
0000b
IDSEL
IDSEL
0000b
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
Write the 6th command(target page to be erased) to the device in FWH mode.
XA[18:16]b
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
Load Address "2AAA" in 7 Clocks
Load Address "5555" in 7 Clocks
Load Address "2AAA" in 7 Clocks
Write the 5th command to the device in FWH mode.
Write the 2nd command to the device in FWH mode.
Write the 3rd command to the device in FWH mode.
Load Address "5555" in 7 Clocks
Write the 4th command to the device in FWH mode.
Load Page Address in 7 Clocks
Load Address "5555" in 7 Clocks
Write the 1st command to the device in FWH mode.
X101b
X010b
Address
A[15:12]
Address
X010b
Address
X101b
Address
Address
X101b
Address
1010b
1010b
0101b
XXXXb
0101b
0101b
- 34 -
1010b
1010b
0101b
XXXXb
0101b
0101b
1010b
XXXXb
1010b
0101b
0101b
0101b
M
Size
M Size
0000b
0000b
M Size
M Size
0000b
M Size
0000b
0000b
M Size
0000b
0000b
Load Data "55"
Load Data "80"
Load Data "55"
Load Data "AA"
in 2 Clocks
in 2 Clocks
0000b
0101b
in 2 Clocks
0101b
in 2 Clocks
Load Data "AA"
1010b
Load Din
in 2 Clocks
in 2 Clocks
1010b
Data
Data
Data
Data
Data
Data
1000b
0101b
0101b
0101b
1010b
1010b
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
Tri-State
Tri-State
Tri-State
1 Clock
1 Clock
1 Clocks
1 Clock
1 Clock
0000b
1 Clock
0000b
0000b
0000b
Sync
0000b
Sync
0000b
Sync
Sync
Sync
Sync
W39V040FA
1111b
1111b
1111b Tri-State
1111b
1111b
1111b
2 Clocks
2 Clocks
2 Clocks
2 Clocks
TAR
2 Clocks
2 Clocks
TAR
TAR
TAR
TAR
TAR
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
Start next
command
1 Clock
1 Clocks
1 Clock
1 Clock
Start next
command
1 Clock