Rev. 6.00, 08/04, page 481 of 628
16.6.3
AC Characteristics
Table 16.16 lists the control signal timing, and tables 16.10 lists the serial interface timing of the
H8/38024S.
Table 16.16 Control Signal Timing
V
CC
= 1.8 V to 3.6 V, AV
CC
= 1.8 V to 3.6 V, V
SS
= AV
SS
= 0.0 V
Values
Item
Symbol
Applicable
Pins
Min
Typ
Max
Unit
Test Condition
Reference
Figure
System clock
oscillation
frequency
f
OSC
OSC
1
, OSC
2
2.0
—
10.0
MHz
V
CC
= 2.7 V to 3.6 V
2.0
—
4.0
MHz
V
CC
= 1.8 V to 3.6 V
OSC clock (
φ
OSC
)
cycle time
t
OSC
OSC
1
, OSC
2
100
—
500
(1000)
ns
V
CC
= 2.7 V to 3.6 V Figure 16.1
*
2
250
—
500
(1000)
ns
V
CC
= 1.8 V to 3.6 V
t
cyc
2
—
128
t
OSC
System clock (
φ
)
cycle time
—
—
128
µs
Subclock oscillation
frequency
f
W
X
1
, X
2
—
32.768
or 38.4
—
kHz
Watch clock (
φ
W
)
cycle time
t
W
X
1
, X
2
—
30.5 or
26.0
—
µs
Figure 16.1
Subclock (
φ
SUB
)
cycle time
t
subcyc
2
—
8
t
W
*
1
Instruction cycle
time
2
—
—
t
cyc
t
subcyc
Oscillation
stabilization time
t
rc
OSC
1
, OSC
2
—
20
45
µs
Ceramic oscillator
V
CC
= 2.2 V to 3.6 V
Figure 16.9
—
80
—
µs
Ceramic oscillator
Except the above
—
0.8
2
ms
Crystal oscillator
V
CC
= 2.7 V to 3.6 V
—
1.2
3
ms
Crystal oscillator
V
CC
= 2.2 V to 3.6 V
—
—
50
ms
Except the above
X
1
, X
2
—
—
2
s
V
CC
= 2.2 V to 3.6 V
—
4
—
s
Except the above
Summary of Contents for H8/38024 Series
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