CY7C109 CYPRESS [Cypress Semiconductor], CY7C109 Datasheet - Page 8

• Manufacturer Part Number: CY7C109
• Description: 128K x 8 Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Switching Waveforms
Write Cycle No. 3 (WE Controlled, OE LOW)
Note:
Truth Table
Document #: 38-05032 Rev. **
15. During this period the I/Os are in the output state and input signals should not be applied.
CE
ADDRESS
H
DATA I/O
X
L
L
L
1
CE
CE
WE
1
2
CE
H
H
H
X
L
2
NOTE 15
OE
H
X
X
L
X
t
SA
WE
(continued)
X
X
H
H
L
High Z
High Z
Data Out
Data In
High Z
t
HZWE
I/O
0
– I/O
[14]
7
t
AW
t
SCE
Power-Down
Power-Down
Read
Write
Selected, Outputs Disabled
t
SCE
t
WC
t
PWE
DATA VALID
t
SD
Mode
t
t
HA
LZWE
t
HD
Standby (I
Standby (I
Active (I
Active (I
Active (I
CY7C1009
CC
CC
CC
Power
CY7C109
SB
SB
)
)
)
)
)
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