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Número de pieza
componentes Descripción
CY7C109B-20VC Ver la hoja de datos (PDF) - Cypress Semiconductor
Número de pieza
componentes Descripción
Fabricante
CY7C109B-20VC
128K x 8 Static RAM
Cypress Semiconductor
CY7C109B-20VC Datasheet PDF : 12 Pages
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Switching Waveforms
(continued)
Write Cycle No. 3 (WE Controlled, OE LOW)
[14]
ADDRESS
CE
1
t
WC
t
SCE
CE
2
t
SA
WE
t
SCE
t
AW
t
PWE
DATA I/O
NOTE 15
t
HZWE
t
SD
DATA VALID
Truth Table
CE
1
CE
2
OE WE
I/O
0
– I/O
7
H
X
X
X High Z
X
L
X
X High Z
L
H
L
H Data Out
L
H
X
L Data In
L
H
H
H High Z
Mode
Power-Down
Power-Down
Read
Write
Selected, Outputs Disabled
CY7C109B
CY7C1009B
t
HA
t
HD
t
LZWE
10B9
–
11
Power
Standby (I
SB
)
Standby (I
SB
)
Active (I
CC
)
Active (I
CC
)
Active (I
CC
)
Document #: 38-05038 Rev. **
Page 8 of 12
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