Ac Characteristics - Hitachi H8/3672 Series Hardware Manual

16.2.3

AC Characteristics

Table 16-3 AC Characteristics
V = 3.0 V to 5.5 V, V
CC
Item Symbol
System clock f
OSC
oscillation
frequency
System clock (ø) t
cyc
cycle time
Instruction cycle
time
Oscillation t
rc
stabilization time
(crystal oscillator)
Oscillation t
rc
stabilization time
(ceramic oscillator)
External clock t
CPH
high width
External clock t
CPL
low width
External clock t
CPr
rise time
External clock t
CPf
fall time
Rev. 1.0, 03/01, page 214 of 280
= 0.0 V, T = –20°C to +75°C, unless otherwise specified.
SS a
Applicable
Pins Test Condition
1
OSC , V
CC
2
OSC
1
OSC ,
2
OSC
1
OSC ,
2
OSC
1
OSC V
CC
1
OSC V
CC
1
OSC V
CC
1
OSC V
CC
Min
= 4.0 V to 5.5 V 2.0
2.0
1
—
2
—
—
= 4.0 V to 5.5 V 25.0
40.0
= 4.0 V to 5.5 V 25.0
40.0
= 4.0 V to 5.5 V —
—
= 4.0 V to 5.5 V —
—
Values
Typ Max Unit
— 16.0 MHz
10.0
— 64 t
OSC
— 12.8 µs
— — t
cyc
— 10.0 ms
— 5.0 ms
— — ns
— —
— — ns
— —
— 10.0 ns
— 15.0
— 10.0 ns
— 15.0
Reference
Figure
*1
*2
Figure 16-1