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Número de pieza
componentes Descripción
ICM7170IPG(2003) Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
ICM7170IPG
(Rev.:2003)
Microprocessor-Compatible, Real-Time Clock
Intersil
ICM7170IPG Datasheet PDF : 14 Pages
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Timing Diagrams
(Continued)
ICM7170
A0 - A4, CS
WR
D0 - D7
ADDRESS VALID, CS LOW
t
AD
t
WA
t
CYC
t
WL
t
DW
t
WD
INPUT DATA VALID
FIGURE 2. WRITE CYCLE TIMING FOR NON-MULTIPLEXED BUS (ALE = V
IH
, RD = V
IH
)
A0 - A4, D0 - D7, CS
ALE
RD
ADDRESS VALID, CS LOW
t
LA
t
LL
t
ACC
OUTPUT DATA VALID
t
AR
t
AL
t
CYC
t
AS
t
RD
FIGURE 3. READ CYCLE TIMING FOR MULTIPLEXED BUS (WR = V
IH
)
A0 - A4, D0 - D7, CS
ALE
WR
ADDRESS VALID, CS LOW
t
LL
t
AL
t
AD
INPUT DATA VALID
t
LA
t
DW
t
WD
t
WA
t
CYC
t
WL
FIGURE 4. WRITE CYCLE TIMING FOR MULTIPLEXED BUS (RD = V
IH
)
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