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參數資料
型號: W49V002FAQ
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 256K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
中文描述: 256K X 8 FLASH 3.3V PROM, 11 ns, PDSO32
封裝: 8 X 14 MM, STSOP-32
文件頁數: 25/32頁
文件大小: 300K
代理商: W49V002FAQ
W49V002FA
Publication Release Date: February 19, 2002
- 25 -
Revision A2
Timing Waveforms for FWH Interface Mode, continued
Toggle Bit Timing Diagram
Read the DQ6 to see if the internal write complete or not.
FWH4
Start
Load Address in 7 Clocks
CLK
1 Clock
2 Clocks
Address
Sync
TAR
1111b
Tri-State
0000b
Data out 2 Clocks
X,D6,XXb
Data
XXXXb
FWH4
FWH[3:0]
Start
Load Address in 7 Clocks
CLK
1 Clock
2 Clocks
Address
Sync
TAR
1111b
Tri-State
0000b
Data out 2 Clocks
Data
When internal write complete, the DQ6 will stop toggle.
X,D6,XXb
XXXXb
FWH4
FWH[3:0]
Start
Load Address "An" in 7 Clocks
CLK
1 Clock
2 Clocks
A[15:12]
Load Data "Dn"
D[7:4]
Write the last command(program or erase) to the device in FWH mode.
Address
Sync
TAR
Data
1111b
Tri-State
0000b
A[11:8]
A[7:4]
A[3:0]
D[3:0]
IDSEL
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
IDSEL
IDSEL
0000b
0000b
0000b
M Size
M Size
M Size
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXA[17:16]b
XXXXb
XXXXb
XXXXb
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1101b
1 Clock
1 Clock
0000b
1101b
1 Clock
2 Clocks
TAR
1111b
Tri-State
Next Start
1 Clock
2 Clocks
TAR
1111b
Tri-State
Next Start
1 Clock
2 Clocks
TAR
1111b
Tri-State
Next Start
FWH[3:0]
#RESET
#RESET
#RESET
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