Cypress Semiconductor CY62167EV30 Ficha de especificações - Página 9

Procurar online ou descarregar pdf Ficha de especificações para Hardware informático Cypress Semiconductor CY62167EV30. Cypress Semiconductor CY62167EV30 15 páginas. Mobl 16-mbit (1m x 16 / 2m x 8) static ram

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Switching Waveforms
Figure 10
shows BHE/BLE controlled, OE LOW write cycle waveforms.
ADDRESS
CE
1
CE
2
BHE/BLE
WE
NOTE 24
DATA IO

Truth Table

CE
CE
WE
OE
BHE BLE
1
2
H
X
X
X
X
L
X
X
X
X
X
X
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
H
L
H
H
H
L
H
H
H
L
H
L
X
L
H
L
X
L
H
L
X
Document #: 38-05446 Rev. *E
(continued)
Figure 10. Write Cycle No. 4
t
AW
t
SA
Inputs/Outputs
X
X
High Z
X
X
High Z
H
H
High Z
L
L
Data Out (I/O
–I/O
0
H
L
Data Out (I/O
–I/O
0
High Z (I/O
–I/O
8
15
L
H
High Z (I/O
–I/O
);
0
7
Data Out (I/O
–I/O
8
L
H
High Z
H
L
High Z
L
L
High Z
L
L
Data In (I/O
–I/O
0
15
H
L
Data In (I/O
–I/O
0
7
High Z (I/O
–I/O
8
15
L
H
High Z (I/O
–I/O
);
0
7
Data In (I/O
–I/O
8
15
[23]
t
WC
t
SCE
t
BW
t
PWE
t
SD
VALID DATA
Mode
Deselect / Power Down
Deselect / Power Down
Deselect / Power Down
)
Read
15
);
Read
7
)
Read
)
15
Output Disabled
Output Disabled
Output Disabled
)
Write
);
Write
)
Write
)
CY62167EV30 MoBL
t
HA
t
HD
Power
Standby (I
)
SB
Standby (I
)
SB
Standby (I
)
SB
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Active (I
)
CC
Page 9 of 14
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