Hitachi HD6433822, Hardware Manual

Page: 373 / 480

15.2.3 AC Characteristics
Table 15-3 lists the control signal timing, and tables 15-4 lists the serial interface timing of the
H8/3864.
Table 15-3 Control Signal Timing
V
CC
= 1.8 V to 5.5 V, AV
CC
= 1.8 V to 5.5 V, V
SS
= AV
SS
= 0.0 V, T
a
= –20°C to +75°C
(including subactive mode) unless otherwise indicated.
Applicable
Values
Reference
Item Symbol Pins Min Typ Max Unit Test Condition Figure
System clock f
OSC
OSC
1
, OSC
2
0.4 — 6 MHz V
CC
= 4.5 V to 5.5 V *
2
oscillation frequency
0.4 — 4 V
CC
= 3.0 V to 5.5 V
0.4 — 3.2 V
CC
= 2.6 V to 5.5 V
0.4 — 2 V
CC
= 2.2 V to 5.5 V
0.4 — 1 Except the above
OSC clock (ø
OSC
) t
OSC
OSC
1
, OSC
2
167 — 2500 ns V
CC
= 4.5 V to 5.5 V Figure 15-1
cycle time
250 — 2500 V
CC
= 3.0 V to 5.5 V *
2
313 — 2500 V
CC
= 2.6 V to 5.5 V
500 — 2500 V
CC
= 2.2 V to 5.5 V Figure 15-1
1000 — 2500 Except the above
System clock (ø) t
cyc
2 — 128 t
OSC
cycle time
— — 244.1 µs
Subclock oscillation f
W
X
1
, X
2
— 32.768 — kHz
frequency or 38.4
Watch clock (ø
W
) t
W
X
1
, X
2
— 30.5 — µs Figure 15-1
cycle time or 26.0
Subclock (ø
SUB
) t
subcyc
2 — 8 t
W
*
1
cycle time
Instruction cycle 2 — — t
cyc
time t
subcyc
Oscillation t
rc
OSC
1
, OSC
2
— 20 45 µs Figure 15-9 Figure 15-9
stabilization time V
CC
= 2.2 V to 5.5 V *
2
— 0.1 8 ms Figure 15-9 Figure 15-9
V
CC
= 2.2 V to 5.5 V
— — 50 ms Except the above
Oscillation t
rc
X
1
, X
2
— — 2.0 s
stabilization time
369