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參數資料
| 型號： | W49V002FAP |
| 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, PQCC32 |
| 封裝： | PLASTIC, LCC-32 |
| 文件頁數： | 6/32頁 |
| 文件大小： | 300K |
| 代理商： | W49V002FAP |
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W49V002FA
- 6 -
Operating Mode Selection - FWH Mode
Operation modes in FWH interface mode are determined by "START Cycle" when it is selected. When
it is not selected, its outputs (FWH[3:0]) will be disable. Please reference to the "FWH Cycle
Definition".
TABLE OF COMMAND DEFINITION
COMMAND
NO. OF
1ST CYCLE
2ND CYCLE
3RD CYCLE 4TH CYCLE 5TH CYCLE 6TH CYCLE
DESCRIPTION
Cycles
Addr. Data
Addr. Data
Addr. Data
Addr. Data
Addr. Data
Addr. Data
Read
1
A
IN
D
OUT
Chip Erase
6
5555 AA
2AAA 55
5555 80
5555 AA
2AAA 55
5555 10
Sector Erase
6
5555 AA
2AAA 55
5555 80
5555 AA
2AAA 55
SA 30
Byte Program
4
5555 AA
2AAA 55
5555 A0
A
IN
D
IN
Boot Block Lockout
6
5555 AA
2AAA 55
5555 80
5555 AA
2AAA 55
5555 40
Product ID Entry
Product ID Exit
(1)
Product ID Exit
(1)
3
5555 AA
2AAA 55
5555 90
3
5555 AA
2AAA 55
5555 F0
1
XXXX F0
Notes:
1. The cycle means the write command cycle not the FWH clock cycle.
2. The Column Address / Row Address are mapped to the Low / High order Internal Address. i.e. Column Address
A[10:0] are mapped to the internal A[10:0], Row Address A[6:0] are mapped to the internal A[17:11]
3. Address Format: A14
A0 (Hex); Data Format: DQ7-DQ0 (Hex)
4. Either one of the two Product ID Exit commands can be used.
5. SA: Sector Address
SA = 3C000h to 3FFFFh for Boot Block
SA = 3A000h to 3BFFFh for Parameter Block1
SA = 38000h to 39FFFh for Parameter Block2
SA = 30000h to 37FFFh for Main Memory Block1
SA = 2XXXXh for Main Memory Block2
SA = 1XXXXh for Main Memory Block3
SA = 0XXXXh for Main Memory Block4
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