CY7C1041 Cypress Semiconductor, CY7C1041 Datasheet - Page 8

• Manufacturer Part Number: CY7C1041
• Description: 256K x 16 Static RAM
• Manufacturer: Cypress Semiconductor

Switching Waveforms
Truth Table
CE
Write Cycle No. 3 (WE Controlled, LOW)
H
L
L
L
L
L
L
L
BHE, BLE
DATA I/O
ADDRESS
CE
OE
WE
H
X
L
L
L
X
X
X
WE
X
H
H
H
H
L
L
L
BLE
H
H
X
L
L
L
L
X
BHE
t
SA
(continued)
X
H
H
X
L
L
L
L
High Z
Data Out
Data Out
High Z
Data In
Data In
High Z
High Z
I/O
0
–I/O
7
t
AW
High Z
Data Out
High Z
Data Out
Data In
High Z
Data In
High Z
t
SCE
I/O
t
t
t
BW
WC
HZWE
8
8
–I/O
15
t
PWE
Power Down
Read All Bits
Read Lower Bits Only
Read Upper Bits Only
Write All Bits
Write Lower Bits Only
Write Upper Bits Only
Selected, Outputs Disabled
t
SD
Mode
t
HD
t
LZWE
t
HA
Standby (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
Active (I
CY7C1041
Power
1041-10
CC
CC
CC
CC
CC
CC
CC
SB
)
)
)
)
)
)
)
)