Datasheet

Rev.6.00 Oct.28.2004 page 759 of 1016
REJ09B0138-0600H
22.7.3 AC Characteristics
(1) Clock Timing
Table 22-36 lists the clock timing
Table 22-36 Clock Timing
Condition B: 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 = 2 to 20 MHz, T
a
= –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Condition C: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, V
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V, ø = 2 to 13 MHz, T
a
= –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Condition B Condition C
Item Symbol Min Max Min Max Unit Test Conditions
Clock cycle time t
cyc
50 500 76 500 ns Figure 22-68
Clock high pulse width t
CH
20 — 23 — ns
Clock low pulse width t
CL
20 — 23 — ns
Clock rise time t
Cr
—5 —15ns
Clock fall time t
Cf
—5 —15ns
Clock oscillator setting
time at reset (crystal)
t
OSC1
10 — 20 — ms Figure 22-69
Clock oscillator setting time
in software standby (crystal)
t
OSC2
10 — 20 — ms Figure 21-2
External clock output
stabilization delay time
t
DEXT
500 — 500 — µs Figure 22-69