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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： | 23/32頁 |
| 文件大小： | 300K |
| 代理商： | W49V002FAQ |
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W49V002FA
Publication Release Date: February 19, 2002
- 23 -
Revision A2
Timing Waveforms for FWH Interface Mode, continued
Program Cycle Timing Diagram
FWH4
#RESET
FWH[3:0 ]
1st Start
IDSEL
Load Address "5555" in 7 Clocks
CLK
1 Clock
2 Clocks
Load Data "AA" in 2 Clocks
1010b
1010b
Write the 1st command to the device in FWH mode.
2nd Start
Load Address "2AAA" in 7 Clocks
1 Clock
2 Clocks
Load Data "55"
0101b
0101b
Write the 2nd command to the device in FWH mode.
3rd Start
Load Address "5555" in 7 Clocks
1 Clock
2 Clocks
Load Data "A0"
1010b
0000b
Write the 3rd command to the device in FWH mode.
4th Start
Load Ain in 7 Clocks
FWH4
FWH[3:0 ]
CLK
FWH4
FWH[3:0 ]
CLK
FWH4
FWH[3:0]
CLK
Sync
Internal
TAR
1 Clock
2 Clocks
A[15:12]
Load Din in 2 Clocks
D[7:4]
Write the 4th command(target location to be programmed) to the device in FWH mode.
A[11:8]
A[7:4]
A[3:0]
D[3:0]
1111b
Tri-State
0000b
Data
Address
Address
Address
Address
Sync
TAR
Data
Sync
TAR
Data
Sync
TAR
Data
1111b
Tri-State
0000b
1111b
Tri-State
0000b
1111b
Tri-State
0000b
IDSEL
Internal
program start
IDSEL
IDSEL
0000b
0000b
0000b
0000b
X101b
0101b
0101b
0101b
X010b
1010b
1010b
1010b
X101b
0101b
0101b
0101b
M Size
M Size
M Size
M Size
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXA[17:16]b
XXXXb
XXXXb
XXXXb
XXXXb
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
Start next
1 Clock
2 Clocks
TAR
1111b
Tri-State
Start next
1 Clock
2 Clocks
TAR
1111b
Tri-State
Start next
1 Clock
2 Clocks
TAR
1111b
Tri-State
TAR
2 Clocks
1111b Tri-State
#RESET
#RESET
#RESET
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