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參數(shù)資料
| 型號(hào)： | CYU01M16SFE |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 16-Mbit (1M x 16) Pseudo Static RAM |
| 中文描述： | 16兆位（1米× 16）偽靜態(tài)存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 9/11頁(yè) |
| 文件大?。?/td> | 503K |
| 代理商： | CYU01M16SFE |
CYU01M16SFE
MoBL3
Document #: 38-05603 Rev. *E
Page 9 of 11
Write Cycle 4 (BHE/BLE Controlled, OE LOW)
[15, 16, 20, 21]
Truth Table
[22]
CE
1
H
X
X
L
L
CE
2
X
L
X
H
H
WE
X
X
X
H
H
OE
X
X
X
L
L
BHE
X
X
H
L
H
BLE
X
X
H
L
L
Inputs/Outputs
High Z
High Z
High Z
Data Out (I/O
0
–I/O
15
)
Data Out (I/O
0
–I/O
7
);
I/O
8
–I/O
15
in High Z
Data Out (I/O
8
–I/O
15
);
I/O
0
–I/O
7
in High Z
High Z
High Z
High Z
Data In (I/O
0
–I/O
15
)
Mode
Power
Deselect/Power-down
Deselect/Power-down
Deselect/Power-down
Read
Read
Standby (I
SB
)
Standby (I
SB
)
Standby (I
SB
)
Active (I
CC
)
Active (I
CC
)
L
H
H
L
L
H
Read
Active (I
CC
)
L
L
L
L
H
H
H
H
H
H
H
L
H
H
H
X
L
H
L
L
L
L
H
L
Output Disabled
Output Disabled
Output Disabled
Write (Upper Byte and Lower
Byte)
Write (Lower Byte Only)
Active (I
CC
)
Active (I
CC
)
Active (I
CC
)
Active (I
CC
)
L
H
L
X
H
L
Data In (I/O
0
–I/O
7
);
I/O
8
–I/O
15
in High Z
Data In (I/O
8
–I/O
15
);
I/O
0
–I/O
7
in High Z
Active (I
CC
)
L
H
L
X
L
H
Write (Upper Byte Only)
Active (I
CC
)
Note:
22.H = Logic HIGH, L = Logic LOW, X = Don’t Care.
Switching Waveforms
(continued)
DATA I/O
ADDRESS
t
HD
t
SD
t
SA
t
HA
t
AW
t
WC
CE
1
WE
VALID DATA
t
BW
BHE/BLE
t
SCE
CE
2
t
PWE
DON’T CARE
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