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Recommended operating conditions (T
Symbol
Power source voltage (Note 4), During CPU, CRT operation
V
CC
Power source voltage
V
SS
HIGH input voltage
V
IH1
HIGH input voltage
V
IH2
LOW input voltage
V
IL1
LOW input voltage
V
IL2
LOW input voltage
V
IL3
HIGH average output current (Note 1)
I
OH
LOW average output current (Note 2)
I
OL1
LOW average output current (Note 2)
I
OL2
LOW average output current (Note 2)
I
OL3
LOW average output current (Note 3)
I
OL4
Oscillation frequency (for CPU operation) (Note 5) X
f(X
)
IN
Oscillation frequency (for CRT display) (Note 5)
f
CRT
Input frequency
f
hs1
Input frequency
f
hs2
Input frequency
f
hs3
Notes 1: The total current that flows out of the IC must be 20 mA (max.).
2: The total input current to IC (I
3: The total average input current for ports P2
4: Connect 0.1 µ F or more capacitor externally across the power source pins V
reduce power source noise. Also connect 0.1 µ F or more capacitor externally across the pins
V
–CNV
CC
SS
5: Use a quartz-crystal oscillator or a ceramic resonator for the CPU oscillation circuit.
ELECTRICAL CHARACTERISTICS
= –10 °C to 70 °C, V
a
Parameter
OL1
.
7220 Group User's Manual
= 5 V ± 10 %, unless otherwise noted)
CC
P0
–P0
,P1
–P1
0
7
0
7
P3
–P3
, S
, S
0
4
IN
CLK
V
, RESET, X
SYNC
TIM2, TIM3, INT1, INT2, INT3
SCL1, SCL2, SDA1, SDA2
(When using I
2
C-BUS)
P0
–P0
,P1
–P1
0
7
0
7
P3
–P3
0
4
SCL1, SCL2, SDA1, SDA2
2
(When using I
C-BUS)
H
, V
, RESET, TIM2,
SYNC
SYNC
TIM3, INT1, INT2, INT3, X
OSC1, S
, S
IN
CLK
R, G, B, OUT1, D-A,
P1
–P1
, P2
–P2
0
7
0
R, G, B, OUT1, D-A, P0
P1
, P1
–P1
, P2
0
5
7
P3
2
P1
–P1
1
4
P0
–P0
0
5
P2
–P2
4
7
IN
OSC1
TIM2, TIM3
S
CLK
SCL1, SCL2
+ I
+ I
) must be 30 mA or less.
OL2
OL3
–P2
to IC must be 20 mA or less.
4
7
3.1 Electrical characteristics
Min.
Typ.
4.5
5.0
0
, P2
–P2
,
0.8V
0
7
CC
, H
,
SYNC
, OSC1,
IN
0.7V
CC
, P2
–P2
,
0
0
7
0
0
,
IN
, P3
, P3
7
0
1
, P0
,
6
7
–P2
, P3
–
0
7
0
8.0
7.9
5.0
Max.
Unit
5.5
V
0
0
V
V
V
CC
V
V
CC
0.4V
V
CC
V
0.3V
CC
V
0.2V
CC
1
mA
mA
2
mA
6
mA
1
10
mA
MHz
8.1
MHz
8.0
kHz
100
1
MHz
400
kHz
–V
so as to
CC
SS
3-3
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