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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： | 27/32頁 |
| 文件大小： | 300K |
| 代理商： | W49V002FAQ |
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W49V002FA
Publication Release Date: February 19, 2002
- 27 -
Revision A2
Timing Waveforms for FWH Interface Mode, continued
Chip Erase Timing Diagram
Load Address "5555" in 7 Clocks
Sync
Internal
TAR
1 Clock
X101b
Load Data "10"
0001b
Write the 6th command to the device in FWH mode.
0101b
0101b
0101b
0000b
1111b
Tri-State
0000b
Data
Address
FWH4
FWH[3:0]
1st Start
CLK
X101b
0101b
0101b
0101b
1010b
1010b
FWH4
FWH[3:0]
CLK
FWH4
FWH[3:0]
CLK
FWH4
FWH[3:0]
CLK
Address
Sync
TAR
Data
Load Address "5555" in 7 Clocks
1 Clock
2 Clocks
Load Data "AA"
Write the 1st command to the device in FWH mode.
Load Address "2AAA" in 7 Clocks
1 Clock
2 Clocks
X010b
1010b
1010b
1010b
Load Data "55"
0101b
0101b
Write the 2nd command to the device in FWH mode.
Load Address "5555" in 7 Clocks
1 Clock
2 Clocks
X101b
0101b
0101b
0101b
Load Data "80"
1000b
0000b
Write the 3rd command to the device in FWH mode.
Address
Address
Sync
TAR
Data
Sync
TAR
Data
1111b
Tri-State
0000b
1111b
Tri-State
0000b
1111b
Tri-State
0000b
Load Address "5555" in 7 Clocks
1 Clock
2 Clocks
X101b
0101b
0101b
0101b
Load Data "AA"
1010b
1010b
Write the 4th command to the device in FWH mode.
Load Address "2AAA" in 7 Clocks
1 Clock
2 Clocks
X010b
1010b
1010b
1010b
Load Data "55"
0101b
0101b
Write the 5th command to the device in FWH mode.
Address
Address
Sync
TAR
Data
Sync
TAR
Data
1111b
Tri-State
0000b
1111b
Tri-State
0000b
FWH4
FWH[3:0]
CLK
FWH4
FWH[3:0]
CLK
2 Clocks
IDSEL
0000b
0000b
0000b
0000b
0000b
0000b
M Size
M Size
M Size
M Size
M Size
M Size
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
XXXXb
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
Start next
1 Clock
2 Clocks
TAR
1111b
Tri-State
Start next
1 Clock
2 Clocks
TAR
1111b
Tri-State
Internal
TAR
2 Clocks
1111b
Tri-State
6th Start
IDSEL
5th Start
IDSEL
4th Start
IDSEL
3th Start
IDSEL
2th Start
IDSEL
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
1 Clock
1 Clock
0000b
1110b
#RESET
#RESET
#RESET
#RESET
#RESET
#RESET
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