Datasheet

Section 22 Electrical Characteristics
Rev. 4.00 Mar. 15, 2006 Page 451 of 556
REJ09B0026-0400
22.2.3 AC Characteristics
Table 22.3 AC Characteristics
V
CC
= 3.0 to 5.5 V, V
SS
= 0.0 V, T
a
= –20 to +75°C (regular specifications) or T
a
= –40 to +85°C
(wide-range specifications), unless otherwise indicated.
Values
Item Symbol
Applicable
Pins
Test Condition Min. Typ. Max. Unit
Reference
Figure
f
OSC
OSC1, OSC2 V
CC
= 4.0 to 5.5 V 2.0 — 20.0 MHz *
1
System clock
oscillation
frequency
2.0 — 10.0
t
cyc
1 — 64 t
OSC
*
2
System clock (•)
cycle time
— — 12.8 µs
Subclock oscillator
oscillation
frequency
f
RO
V
CC
= 4.0 to 5.5 V 64.0 — 850.0 kHz
Subclock oscillator
(φw) cycle time
t
RO
V
CC
= 4.0 to 5.5 V 1.18 — 15.6 µs
Subclock (φsub)
cycle time
t
subcyc
V
CC
= 4.0 to 5.5 V 2 — 8 φw
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
t
CPH
OSC1 V
CC
= 4.0 to 5.5 V 20.0 — — ns Figure 22.1
External clock high
width
40.0 — —
t
CPL
OSC1 V
CC
= 4.0 to 5.5 V 20.0 — — ns
External clock low
width
40.0 — —
t
CPr
OSC1 V
CC
= 4.0 to 5.5 V — — 10.0 ns
External clock rise
time
— — 15.0
t
CPf
OSC1 V
CC
= 4.0 to 5.5 V — — 10.0 ns
External clock fall
time
— — 15.0