Filter
Top Products
CY62157CV30/33
Document #: 38-05014 Rev. *F Page 10 of 13
Write Cycle No. 4 (BHE/BLE Controlled, OE LOW)
[19]
Truth Table
CE
1
CE
2
WE OE BHE BLE Inputs/Outputs Mode Power
H X X X X X High Z Deselect/Power-Down Standby (I
SB
)
X L X X X X High Z Deselect/Power-Down Standby (I
SB
)
X X X X H H High Z Deselect/Power-Down Standby (I
SB
)
L H H L L L Data Out (I/O
O
–I/O
15
) Read Active (I
CC
)
L H H L H L Data Out (I/O
O
–I/O
7
);
I/O
8
–I/O
15
in High Z
Read Active (I
CC
)
L H H L L H Data Out (I/O
8
–I/O
15
);
I/O
0
–I/O
7
in High Z
Read Active (I
CC
)
L H H H L L High Z Output Disabled Active (I
CC
)
L H H H H L High Z Output Disabled Active (I
CC
)
L H H H L H High Z Output Disabled Active (I
CC
)
L H L X L L Data In (I/O
O
–I/O
15
) Write Active (I
CC
)
L H L X H L Data In (I/O
O
–I/O
7
);
I/O
8
–I/O
15
in High Z
Write Active (I
CC
)
L H L X L H Data In (I/O
8
–I/O
15
);
I/O
0
–I/O
7
in High Z
Write Active (I
CC
)
Switching Waveforms (continued)
DATA I/O
ADDRESS
t
HD
t
SD
t
SA
t
HA
t
AW
t
WC
CE
1
WE
DATA
IN
VALID
NOTE 20
t
BW
BHE/BLE
t
SCE
CE
2
t
PWE
[+] Feedback