Truth table, Truth table” on, Switching waveforms – Cypress CY62167EV30 User Manual
Page 9
CY62167EV30 MoBL
®
Document #: 38-05446 Rev. *E
Page 9 of 14
shows BHE/BLE controlled, OE LOW write cycle waveforms.
Figure 10. Write Cycle No. 4
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
0
–I/O
15
)
Read
Active (I
CC
)
L
H
H
L
H
L
Data Out (I/O
0
–I/O
7
);
High Z (I/O
8
–I/O
15
)
Read
Active (I
CC
)
L
H
H
L
L
H
High Z (I/O
0
–I/O
7
);
Data Out (I/O
8
–I/O
15
)
Read
Active (I
CC
)
L
H
H
H
L
H
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
L
High Z
Output Disabled
Active (I
CC
)
L
H
L
X
L
L
Data In (I/O
0
–I/O
15
)
Write
Active (I
CC
)
L
H
L
X
H
L
Data In (I/O
0
–I/O
7
);
High Z (I/O
8
–I/O
15
)
Write
Active (I
CC
)
L
H
L
X
L
H
High Z (I/O
0
–I/O
7
);
Data In (I/O
8
–I/O
15
)
Write
Active (I
CC
)
Switching Waveforms
(continued)
t
HD
t
SD
t
SA
t
HA
t
AW
t
WC
VALID DATA
t
BW
t
SCE
t
PWE
NOTE 24
CE
1
ADDRESS
CE
2
WE
DATA IO
BHE/BLE