Renesas H8S Series Hardware Manual page 713

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