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參數(shù)資料
| 型號： | W28F321TB70L |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 2M X 16 FLASH 1.8V PROM, 70 ns, PBGA48 |
| 封裝： | 7 X 7 MM, 0.75 MM PITCH, TFBGA-48 |
| 文件頁數(shù)： | 3/28頁 |
| 文件大?。?/td> | 372K |
| 代理商： | W28F321TB70L |
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W28F321BB/TB
Publication Release Date: February 17, 2003
- 11 -
Revision A2
Table 9. Block Locking State Transitions upon #WP Transition(4)
Current State
Result after #WP Transition (Next State)
Previous State
State
#WP
DQ1
DQ0
#WP = 0
→1(1)
#WP = 1
→0(1)
-
[000]
0
[100]
-
[001]
0
1
[101]
-
[110]
(2)
[110]
-
Other than [110]
(2)
[011]
0
1
[111]
-
[100]
1
0
-
[000]
-
[101]
1
0
1
-
[001]
-
[110]
1
0
-
[011]
(3)
-
[111]
1
-
[011]
Notes:
1. "#WP = 0→1" means that #WP is driven to VIH and "#WP = 1→0" means that #WP is driven to VIL.
2. State transition from the current state [011] to the next state depends on the previous state.
3. When #WP is driven to VIL in [110] state, the state changes to [011] and the blocks are automatically locked.
4. In this state transitions table, assumes that lock configuration commands are not written in previous, current and next state.
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