W39V040FBP WINBOND [Winbond], W39V040FBP Datasheet - Page 27

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

Timing Waveforms for FWH Interface Mode, continued
13.4 #DATA Polling Timing Diagram
#RESET
FWH[3:0]
FWH[3:0]
#RESET
#RESET
FWH[3:0]
FWH4
FWH4
FWH4
CLK
CLK
CLK
1 Clock
1 Clock
1 Clock
Start
1110b
1101b
1101b
Start
Start
1 Clock
1 Clock
1 Clock
IDSEL
IDSEL
IDSEL
0000b
0000b
0000b
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
Write the last command(program or erase) to the device in FWH mode.
An[18:16]
An[18:16]
An[18:16]
Load Address "An" in 7 Clocks
Read the DQ7 to see if the internal write complete or not.
Load Address in 7 Clocks
Load Address in 7 Clocks
When internal write complete, the DQ7 will equal to Dn7.
An[15:12]
An[15:12]
An[15:12]
Address
Address
Address
An[11:8]
An[11:8]
An[11:8]
XXXXb
An[7:4]
An[7:4]
An[7:4]
- 27 -
An[3:0]
An[3:0]
An[3:0]
M Size
M Size
0000b
M Size
0000b
0000b
Load Data "Dn"
Dn[3:0]
in 2 Clocks
1111b
1111b
2 Clocks
2 Clocks
Data
Publication Release Date: April 14, 2005
TAR
TAR
Dn[7:4]
Tri-State
Tri-State
1 Clock
1 Clock
1111b
0000b
0000b
Sync
Sync
2 Clocks
TAR
Tri-State
Data out 2 Clocks
Data out 2 Clocks
XXXXb
XXXXb
Data
Data
W39V040FB
1 Clock
Dn7,xxx
Dn7,xxx
0000b
Sync
1111b
1111b
1111b
2 Clocks
2 Clocks
2 Clocks
TAR
TAR
TAR
Tri-State
Tri-State
Tri-State
Revision A3
1 Clock
Next Start
1 Clock
1 Clock
Next Start
Next Start