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Recommended operating conditions (T
Symbol
V
Power source voltage (Note 4), During CPU, CRT operation
CC
V
Power source voltage
SS
V
HIGH input voltage
IH
V
LOW input voltage
IL1
V
LOW input voltage
IL2
I
HIGH average output current (Note 1)
OH
I
LOW average output current (Note 2)
OL1
I
LOW average output current (Note 2)
OL2
I
LOW average output current (Note 3)
OL3
f(X
)
Oscillation frequency (for CPU operation) (Note 5) X
IN
f
Oscillation frequency (for CRT display) (Note 5)
CRT
f
Input frequency
hs1
f
Input frequency
hs2
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.
= –10 °C to 70 °C, V
a
Parameter
OL1
.
7220 Group User's Manual
M37220M3-XXXSP/FP
CC
P0
–P0
,P1
–P1
, P2
–P2
0
7
0
7
0
P3
–P3
, S
, S
, H
0
4
IN
CLK
SYNC
V
, RESET, X
, OSC1,
SYNC
IN
TIM2, TIM3, INT1, INT2, INT3
P0
–P0
,P1
–P1
, P2
–P2
0
7
0
7
0
P3
–P3
0
4
H
, V
, RESET, TIM2,
SYNC
SYNC
TIM3, INT1, INT2, INT3, X
OSC1, S
, S
IN
CLK
R, G, B, OUT, D-A, P1
P2
–P2
, P3
, P3
0
7
0
R, G, B, OUT, D-A, P0
P1
–P1
, P2
–P2
0
7
0
P0
–P0
0
5
P2
–P2
4
7
IN
OSC1
TIM2, TIM3
S
CLK
+ I
) must be 30 mA or less.
OL2
–P2
to IC must be 20 mA or less.
4
7
4.6 Electrical characteristics
= 5 V ± 10 %, unless otherwise noted)
Min.
Typ.
4.5
0
0.8V
,
7
CC
,
,
0
7
0
,
IN
–P1
,
0
7
1
, P0
,
6
7
, P3
–P3
7
0
2
7.9
5.0
Max.
Unit
5.0
5.5
V
0
0
V
V
V
CC
V
V
0.4V
CC
0.2V
V
CC
mA
1
mA
2
1
mA
10
mA
8.0
MHz
8.1
MHz
8.0
kHz
100
1
MHz
–V
so as to
CC
SS
4-29
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