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W39V040FC View Datasheet(PDF) - Winbond

Part NameDescriptionManufacturer
W39V040FC 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE Winbond
Winbond Winbond
W39V040FC Datasheet PDF : 36 Pages
First Prev 31 32 33 34 35 36
Timing Waveforms for FWH Interface Mode, continued
17.5 Toggle Bit Timing Diagram
W39V040FC
CLK
#RESET
FWH4
FWH[3:0]
CLK
#RESET
FWH4
FWH[3:0]
CLK
#RESET
FWH4
FWH[3:0]
Start IDSEL
1110b 0000b
1 Clock 1 Clock
XXXXb
Address
M Size
Data
TAR
Sync
TAR
Next Start
XXXXb A[18:16] A[15:12] A[11:8]
A[7:4]
A[3:0]
0000b D[3:0] D[7:4]
1111b Tri-State 0000b 1111b Tri-State
Load Address "An" in 7 Clocks
Load Data "Dn"
in 2 Clocks
2 Clocks
Write the last command(program or erase) to the device in FWH mode.
1 Clock
2 Clocks
1 Clock
Start IDSEL
1101b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
Address
M Size
TAR
Sync
Data
TAR
Next Start
XXXXb XXXXb XXXXb XXXXb XXXXb 0000b 1111b Tri-State 0000b XXXXb X,D6,XXb 1111b Tri-State
Load Address in 7 Clocks
2 Clocks 1 Clock Data out 2 Clocks 2 Clocks 1 Clock
Read the DQ6 to see if the internal write complete or not.
Start IDSEL
1101b 0000b
1 Clock 1 Clock
XXXXb
XXXXb
Address
M Size
XXXXb XXXXb XXXXb XXXXb XXXXb 0000b
Load Address in 7 Clocks
TAR
Sync
Data
TAR
Next Start
1111b Tri-State 0000b XXXXb X,D6,XXb 1111b Tri-State
2 Clocks 1 Clock Data out 2 Clocks 2 Clocks 1 Clock
When internal write complete, the DQ6 will stop toggle.
- 31 -
Publication Release Date: Apr. 11, 2006
Revision A1
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