Renesas H8/38024 Series, Руководство по оборудованию

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Rev. 6.00, 08/04, page 500 of 628
16.8.3 AC Characteristics
Table 16.22 lists the control signal timing and table 16.23 lists the serial interface timing.
Table 16.22 Control Signal Timing
V
CC
= 2.7 V to 5.5 V, AV
CC
= 2.7 V to 5.5 V, V
SS
= AV
SS
= 0.0 V, unless otherwise specified
Values
Item Symbol
Applicable
Pins
Min Typ Max Unit Test Condition
Reference
Figure
f
OSC
OSC
1
, OSC
2
2.0 — 16.0 MHz System clock
oscillation
frequency
0.7 — 2.0 On-chip oscillator
selected
* 2
OSC clock (
φ
OSC
)
cycle time
t
OSC
OSC
1
, OSC
2
62.5 — 500 ns Figure 16.1
500 — 1429 On-chip oscillator
selected
t
cyc
2 — 128 t
OSC
System clock (
φ
)
cycle time
— — 182 µs
Subclock oscillation
frequency f
W
X
1
, X
2
— 32.768 — kHz
Watch clock (
φ
W
)
cycle time
t
W
X
1
, X
2
— 30.5 — 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 ms
t
rc
X
1
, X
2
— — 2.0 s
External clock high
width t
CPH
OSC
1
25 — — ns V
CC
= 2.7 V to 3.6
V in conditions A
and C
Figure 16.1
External clock low
width t
CPL
OSC
1
25 — — ns Figure 16.1
External clock rise
time t
CPr
OSC
1
— — 6 ns Figure 16.1
External clock fall
time t
CPf
OSC
1
— — 6 ns Figure 16.1
RES
pin low
width
t
REL
RES
10 — — t
cyc
Figure 16.2