MSM6794 查看數據表（PDF） - Oki Electric Industry
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MSM6794 Datasheet PDF : 34 Pages
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¡ Semiconductor
AC Characteristics
Parallel interface (1)
Parameter
RD "H" level width
RD "L" level width
WR "H" level width
WR "L" level width
WR-RD "H" level width
CS, RS setup time
CS, RS hold time
Write data setup time
Write data hold time
Read data output delay time
Read data hold time
External clock "H" level width
External clock "L" level width
RESET pulse width
External clock rise time, fall time
Parallel interface (2)
Parameter
RD "H" level width
RD "L" level width
WR "H" level width
WR "L" level width
WR-RD "H" level width
CS, RS setup time
CS, RS hold time
Write data setup time
Write data hold time
Read data output delay time
Read data hold time
External clock "H" level width
External clock "L" level width
RESET pulse width
External clock rise time, fall time
MSM6794
Symbol
tWRH
tWRL
tWWH
tWWL
tWWRH
tAS
tAH
tDSW
tDHW
tDDR
tDHR
tWCH
tWCL
tWRE
tr, tf
(VDD=2.7 to 4.5V, VBI=5 to 12V, Ta=–25 to +85˚C)
Condition Min
Max
Unit
—
200
—
ns
—
200
—
ns
—
200
—
ns
—
200
—
ns
—
200
—
ns
—
50
—
ns
—
10
—
ns
—
50
—
ns
—
20
—
ns
CL=50pF
—
170
ns
—
20
—
ns
—
200
—
ns
—
200
—
ns
—
2.0
—
µs
—
—
100
ns
Symbol
tWRH
tWRL
tWWH
tWWL
tWWRH
tAS
tAH
tDSW
tDHW
tDDR
tDHR
tWCH
tWCL
tWRE
tr, tf
(VDD=4.5 to 5.5V, VBI=5 to 12V, Ta=–25 to +85˚C)
Condition Min
Max
Unit
—
150
—
ns
—
150
—
ns
—
150
—
ns
—
150
—
ns
—
150
—
ns
—
50
—
ns
—
10
—
ns
—
50
—
ns
—
20
—
ns
CL=50pF
—
130
ns
—
20
—
ns
—
150
—
ns
—
150
—
ns
—
2.0
—
µs
—
—
20
ns
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