cy62127dv30 Cypress Semiconductor Corporation., cy62127dv30 Datasheet - Page 8

• Manufacturer Part Number: cy62127dv30
• Description: 1-mb 64k X 16 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-05229 Rev. *H
Switching Waveforms
Write Cycle No. 4 (BHE-/BLE-controlled, OE LOW)
Truth Table
ADDRESS
CE
H
BHE/BLE
X
L
L
L
L
L
L
L
L
L
DATA I/O
CE
WE
WE
X
H
H
H
H
X
H
H
L
L
L
OE
DON'T CARE
X
L
L
H
X
X
L
H
H
X
X
BHE
H
H
L
X
H
L
L
L
L
H
L
(continued)
BLE
X
L
L
H
L
H
L
H
L
L
H
t
SA
High Z
High Z
High Z
Data Out
Data In
Data In
High Z
Data Out
High Z
High Z
High Z
I/O
0
–I/O
7
t
AW
[20, 21]
t
High Z
High Z
High Z
Data Out
High Z
Data Out
High Z
High Z
Data In
High Z
Data In
SCE
t
PWE
I/O
t
WC
8
t
–I/O
BW
15
DATA
t
SD
Deselect/Power-down
Deselect/Power-down
Read All bits
Read Lower Byte Only
Read Upper Byte Only
Output Disabled
Output Disabled
Output Disabled
Write
Write Lower Byte Only
Write Upper Byte Only
IN
VALID
Mode
t
HA
t
HD
CY62127DV30
Active (I
Active (I
Standby (I
Standby (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
Power
Page 8 of 11
CC
CC
CC
CC
CC
CC
CC
CC
CC
SB
SB
)
)
)
)
)
)
)
)
)
)
)
[+] Feedback