Datasheet

Section 21 Electrical Characteristics
Rev. 2.00 Sep. 23, 2005 Page 368 of 444
REJ09B0068-0200
21.2.3 AC Characteristics
Table 21.3 AC Characteristics
Vcc = 3.0 to 5.5 V, Vss = 0.0 V, Ta = –20 to +75°C, unless otherwise indicated.
Values
Item Symbol
Applicable
Pins
Test Condition Min. Typ. Max. Unit
Reference
Figure
f
OSC
OSC1,
OSC2
Vcc = 4.0 to 5.5 V 2.0 — 20.0 MHz *
1
System clock
oscillation
frequency
2.0 — 10.0 MHz
t
cyc
1 — 64 t
OSC
*
2
System clock (φ)
cycle time
— — 12.8 µs
Instruction cycle
time
2 — — t
cyc
Oscillation
stabilization time
(crystal resonator)
t
rc
OSC1,
OSC2
— — 10.0 ms
Oscillation
stabilization time
(ceramic resonator)
t
rc
OSC1,
OSC2
— — 5.0 ms
t
CPH
OSC1 Vcc = 4.0 to 5.5 V 20.0 — — ns Figure 21.1External clock high
width
40.0 — — ns
t
CPL
OSC1 Vcc = 4.0 to 5.5 V 20.0 — — ns External clock low
width
40.0 — — ns
t
CPr
OSC1 Vcc = 4.0 to 5.5 V — — 10.0 ns External clock rise
time
— — 15.0 ns
t
CPf
OSC1 Vcc = 4.0 to 5.5 V — — 10.0 ns External clock fall
time
— — 15.0 ns