1-60
3820 GROUP USER’S MANUAL
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 32 Recommended operating conditions (Low power source voltage version) (2)
(V
CC
= 2.2 to 5.5 V, T
a
= –20 to 85
°
C, unless otherwise noted)
Note 1:
The total output current is the sum of all the currents flowing through all the applicable ports. The total average current is an aver-
age value measured over 100 ms. The total peak current is the peak value of all the currents.
2:
The peak output current is the peak current flowing in each port.
3:
The average output current is an average value measured over 100 ms.
4:
When the oscillation frequency has a duty cycle of 50 %.
5:
When using the microcomputer in low-speed mode, make sure that the sub-clock input oscillation frequency f(X
CIN
) is less than
f(X
IN
)/3.
–40
–40
40
40
–20
–20
20
20
–5
5
10
–1.0
–2.5
2.5
5.0
8.0
8.0
50
“H” total peak output current
“H” total peak output current
“L” total peak output current
“L” total peak output current
“H” total average output current
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
(Note 1)
“H” total average output current P4
1
–P4
7
,P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 1)
“L” total average output current
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
(Note 1)
“L” total average output current
P4
1
–P4
7
,P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 1)
“H” peak output current
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
, P4
1
–P4
7
, P5
0
–P5
7
,
P6
0
, P6
1
, P7
0
, P7
1
(Note 2)
“L” peak output current
P0
0
–P0
7
, P1
0
–P1
7
(Note 2)
“L” peak output current
P2
0
–P2
7
, P4
1
–P4
7
, P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 2)
“H” average output current
P0
0
–P0
7
, P1
0
–P1
7
(Note 3)
“H” average output current
P2
0
–P2
7
, P4
1
–P4
7
, P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 3)
“L” average output current
P0
0
–P0
7
, P1
0
–P1
7
(Note 3)
“L” average output current
P2
0
–P2
7
, P4
1
–P4
7
, P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 3)
Clock input frequency
for timers X and Y
(duty cycle 50 %)
High-speed mode (4.0 V
≤
V
CC
≤
5.5 V)
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
(Note 1)
P4
1
–P4
7
,P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 1)
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
(Note 1)
P4
1
–P4
7
,P5
0
–P5
7
, P6
0
, P6
1
, P7
0
, P7
1
(Note 1)
Main clock input oscillation
frequency (Note 4)
Sub-clock input oscillation frequency (Note 4, 5)
Σ
I
OH(peak)
Σ
I
OH(peak)
Σ
I
OL(peak)
Σ
I
OL(peak)
Σ
I
OH(avg)
Σ
I
OH(avg)
Σ
I
OL(avg)
Σ
I
OL(avg)
I
OH(peak)
I
OL(peak)
I
OL(peak)
I
OH(avg)
I
OH(avg)
I
OL(avg)
I
OL(avg)
f(CNTR
0
)
f(CNTR
1
)
f(X
IN
)
f(X
CIN
)
Symbol
Parameter
Limits
Typ.
Min.
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
MHz
MHz
MHz
kHz
Unit
Max.
4.0 V
≤
V
CC
≤
5.5 V
V
CC
≤
4.0 V
32.768
High-speed mode (V
CC
≤
4.0 V)
Middle-speed mode
4.0
(10XV
CC
–4)
9
MHz
MHz
(20XV
CC
–8)
9