Datasheet

Section 20 Electrical Characteristics
Rev. 2.00 Sep. 23, 2005 Page 397 of 472
REJ09B0160-0200
20.3.3 AC Characteristics
Table 20.10 AC Characteristics
V
CC
= 3.0 to 3.6 V, V
SS
= 0.0 V, T
a
= –20 to +75°C, unless otherwise indicated.
Values
Item Symbol
Applicable
Pins
Test Condition Min. Typ. Max. Unit
Reference
Figure
System clock
oscillation
frequency
f
OSC
OSC1,
OSC2
4.0 — 18.0 MHz
t
cyc
1 — 64 t
OSC
System clock (φ)
cycle time
— — 12.8 µs
Figure 20.1*
Subclock oscillation
frequency
f
W
X1, X2 — 32.768 — kHz
Watch clock (φ
W
)
cycle time
t
W
X1, X2 — 30.5 — µs
Subclock (φ
SUB
)
cycle time
t
subcyc
2 — 8 t
W
*
Instruction cycle
time
2 — — t
cyc
t
subcyc
Oscillation
stabilization time
(crystal resonator)
t
rc
OSC1,
OSC2
— — 10.0 ms
Oscillation
stabilization time
(ceramic resonator)
t
rc
OSC1,
OSC2
— — 5.0 ms
Oscillation
stabilization time
t
rcx
X1, X2 — — 2.0 s
External clock
high width
t
CPH
OSC1 25.0 — — ns Figure 20.1
External clock
low width
t
CPL
OSC1 25.0 — — ns
External clock
rise time
t
CPr
OSC1 — — 10.0 ns
External clock
fall time
t
CPf
OSC1 — — 10.0 ns