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114
12.2.5
DC Characteristics (3 V, CPU operates at half of the external clock frequency)
Conditions: V
CC
= 2.7 to 3.3 V, V
SS
= 0 V, T
a
= –25 to +85
°
C, unless otherwise specified.
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Input high
RES
V
IH
V
CC
×
0.8 —
V
CC
+ 0.3
V
voltage
CLK
V
CC
×
0.7 —
V
CC
+ 0.3
I/O ports
V
CC
×
0.7 —
V
CC
+ 0.3
Input low
RES
V
IL
–0.3
—
V
CC
×
0.2
V
voltage
CLK
–0.3
—
V
CC
×
0.2
I/O ports
–0.3
—
V
CC
×
0.2
Output high
voltage
I/O ports
V
OH
V
CC
×
0.7 —
V
CC
V
I
OH
= –20
µ
A
Output low
voltage
I/O ports
V
OL
0
—
0.4
V
I
OL
= 1 mA
Input leakage
current
CLK
|I
in
|
—
—
10
µ
A
V
in
= 0.5 to V
CC
– 0.5 V
Input pull-up
RES
–I
p
—
—
150
µ
A
V
in
= 0 V
MOS current*
1
I/O ports
—
—
150
Current
dissipation*
2
Normal
operation*
3
I
CC
—
—
6
mA
1 MHz
≤
f
CLK
*
4
≤
5 MHz
Sleep
mode
—
—
100
µ
A
V
in
(I/O ports and
RES
)
= V
CC
– 0.5 V to V
CC
or
I/O ports open*
1
Pin
capacitance*
5
C
p
—
—
15
pF
V
in
= 0 V,
f
CLK
*
6
= 1 MHz,
T
a
= 25
°
C
Notes: 1. The input pull-up MOS's in the
RES
and I/O port pins are always turned on, even in
sleep mode. To reduce their current, the I/O port pins and
RES
must be kept high
during sleep mode. The unused I/O port pin must be left as an input pin and left open
(unconnected).
2. Current dissipation assumes that V
IHmin
= V
CC
– 0.5 V, V
ILmax
= 0.5 V, and all output pins
are unloaded.
3. Normal operation means an operating mode other than sleep mode. In normal
operation, CLK must be input according to the DC and AC characteristics.
4. f
CLK
is the external clock frequency. For the H8/3153, 1 MHz
≤
f
CLK
≤
4 MHz.
5. Pin capacitance is the value in the die state.
6. f
CLK
is the external clock frequency.