Datasheet

Rev.6.00 Oct.28.2004 page 685 of 1016
REJ09B0138-0600H
(1) Clock Timing
Table 22-4 lists the clock timing
Table 22-4 Clock Timing
Conditions: V
CC
= 5.0 V ± 10%, AV
CC
= 5.0 V ± 10%, V
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V, ø = 10 to 20 MHz, T
a
= –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Condition
Test
Item Symbol Min Max Unit Conditions
Clock cycle time t
cyc
50 100 ns Figure 22-4
Clock high pulse width t
CH
20 ns
Clock low pulse width t
CL
20 ns
Clock rise time t
Cr
—5 ns
Clock fall time t
Cf
—5 ns
Clock oscillator setting
time at reset (crystal)
t
OSC1
10 ms Figure 22-5
Clock oscillator setting time
in software standby (crystal)
t
OSC2
10 ms Figure 21-2
External clock output stabilization
delay time
t
DEXT
500 µs Figure 22-5
t
CH
t
Cf
t
cyc
t
CL
t
Cr
ø
Figure 22-4 System Clock Timing