Ac Characteristics - Renesas F-ZTAT H8 Series Hardware Manual

8-bit single-chip microcomputer
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16.2.3

AC Characteristics

Table 16.4 shows the control signal timing, and table 16.5 shows the serial interface timing, of the
H8/3852, H8/3853, and H8/3854.
Table 16.4 Control Signal Timing of H8/3852, H8/3853, and H8/3854
V
= 2.7 V to 5.5 V of the mask ROM version of H8/3852, H8/3853, and H8/3854,
CC
V
= 3.0 V to 5.5 V of H8/3854F, V
CC
unless otherwise specified.
Item
Symbol Pins
System clock
f
OSC
oscillation frequency
OSC clock (φ
)
t
OSC
OSC
cycle time
System clock (φ)
t
cyc
cycle time
Subclock oscillation
f
W
frequency
Watch clock (φ
)
t
W
W
cycle time
Subclock (φ
)
t
SUB
subcyc
cycle time
Instruction cycle time
Oscillation
t
rc
stabilization time
(crystal oscillator)
Oscillation
t
rc
stabilization time
External clock high
t
CPH
width
External clock low
t
CPL
width
External clock rise
t
CPr
time
External clock fall
t
CPf
time
= 0.0 V, T
SS
Applicable
Test Conditions
OSC1, OSC2
V
= 4.0 V to 5.5 V 2.0
CC
OSC1, OSC2
V
= 4.0 V to 5.5 V 100.0
CC
X1, X2
X1, X2
OSC
, OSC
V
= 4.0 V to 5.5 V 40.0
1
2
CC
X
, X
1
2
OSC
V
= 4.0 V to 5.5 V 40.0
1
CC
OSC
V
= 4.0 V to 5.5 V 40.0
1
CC
= 4.0 V to 5.5 V ⎯
OSC
V
1
CC
= 4.0 V to 5.5 V ⎯
OSC
V
1
CC
16. Electrical Characteristics (H8/3854 Group)
3
= –20°C to +75°C*
a
Values
Min
Typ
2.0
200.0
2
32.768 ⎯
30.5
2
2
60.0
2
80.0
80.0
Rev.3.00 Jul. 19, 2007 page 431 of 532
, including subactive mode,
Reference
Max
Unit Figure
10.0
MHz
5.0
1
1000.0
ns
*
Figure 16.1
1000.0
1
16
t
*
OSC
2000.0
ns
kHz
μs
2
8
t
*
W
t
cyc
t
subcyc
ms
s
ns
Figure 16.1
ns
Figure 16.1
15.0
ns
Figure 16.1
20.0
15.0
ns
Figure 16.1
20.0
REJ09B0397-0300

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