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Rev. 1.0, 07/01, page 309 of 372
20.3.3 AC Characteristics
Table 20-11 AC Characteristics
V
CC
= 2.7 to 5.5 V, V
SS
= 0.0 V, T
a
= –20 to +75°C, unless otherwise indicated.
A
pp
licable
Values
Reference
Item Symbol Pins Test Condition Min Typ Max Unit Figure
System clock
oscillation
f
OSC
OSC
1
,
OSC
2
V
CC
= 4.0 to 5.5 V 2.0 — 16.0 MHz *1
frequency
2.0 10.0
System clock (ø) t
cyc
1—64t
OSC
*2
cycle time
— — 12.8 µs
Subclock oscillation
frequency
f
W
X
1
, X
2
— 32.768 — kHz
Watch clock (ø
W
)
cycle time
t
W
X
1
, X
2
— 30.5 — µs
Subclock (ø
SUB
)
cycle time
t
subcyc
2—8 t
W
*2
Instruction cycle
time
2——t
cyc
t
subcyc
Oscillation
stabilization time
(crystal oscillator)
t
rc
OSC
1
,
OSC
2
— — 10.0 ms
Oscillation
stabilization time
(ceramic oscillator)
t
rc
OSC
1
,
OSC
2
—— 5.0ms
Oscillation
stabilization time
t
rcx
X
1
, X
2
—— 2.0s
External clock t
CPH
OSC
1
V
CC
= 4.0 to 5.5 V 25.0 — — ns Figure 20-1
high width
40.0 — —
External clock t
CPL
OSC
1
V
CC
= 4.0 to 5.5 V 25.0 — — ns
low width
40.0 — —
External clock t
CPr
OSC
1
V
CC
= 4.0 to 5.5 V — — 10.0 ns
rise time
— — 15.0
External clock t
CPf
OSC
1
V
CC
= 4.0 to 5.5 V — — 10.0 ns
fall time
— — 15.0