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參數資料
| 型號： | 3820 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數： | 1/66頁 |
| 文件大小： | 1093K |
| 代理商： | 3820 |
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DESCRIPTION
The 3820 group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 3820 group has the LCD drive control circuit and the serial I/
O as additional functions.
The various microcomputers in the 3820 group include variations
of internal memory size and packaging. For details, refer to the
section on part numbering.
For details on availability of microcomputers in the 3820 group, re-
fer to the section on group expansion.
FEATURES
Basic machine-language instructions....................................... 71
The minimum instruction execution time ............................ 0.5
μ
s
(at 8MHz oscillation frequency)
Memory size
ROM .................................................................. 4 K to 32 K bytes
RAM ................................................................. 192 to 1024 bytes
Programmable input/output ports ............................................. 43
Software pull-up/pull-down resistors (Ports P0-P7 except Port P4
0
)
Interrupts .................................................. 16 sources, 16 vectors
(includes key input interrupt)
Timers ........................................................... 8-bit
3, 16-bit
2
Serial I/O1 .....................8-bit
1 (UART or Clock-synchronized)
Serial I/O2 ....................................8-bit
1 (Clock-synchronized)
LCD drive control circuit
Bias ...................................................................................1/2, 1/3
Duty ............................................................................1/2, 1/3, 1/4
Common output .......................................................................... 4
Segment output......................................................................... 40
2 Clock generating circuit
Clock (X
IN
-X
OUT
) .................................. Internal feedback resistor
Sub-clock (X
CIN
-X
COUT
).......... Without internal feedback resistor
(connect to external ceramic resonator or quartz-crystal oscillator)
Watchdog timer ............................................................. 15-bit
1
Power source voltage
In high-speed mode ....................................................4.0 to 5.5 V
(at 8MHz oscillation frequency and high-speed selected)
In middle-speed mode ................................................2.5 to 5.5 V
(at 8MHz oscillation frequency and middle-speed selected)
In low-speed mode......................................................2.5 to 5.5 V
(Extended operating temperature version: 3.0 V to 5.5 V)
Power dissipation
In high-speed mode ...........................................................32 mW
(at 8 MHz oscillation frequency)
In low-speed mode..............................................................45
μ
W
(at 32 kHz oscillation frequency, at 3 V power source voltage)
Operating temperature range ................................... – 20 to 85
°
C
(Extended operating temperature version: –40 to 85
°
C)
APPLICATIONS
Household appliances, consumer electronics, etc.
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PIN CONFIGURATION (TOP VIEW)
P
0
/
1
P
1
/
1
P
2
/
1
P
3
/
1
P
4
/
2
P
5
/
2
P
6
/
2
P
7
/
2
P
0
/
2
P
3
/
2
P
4
/
2
P
5
/
2
P
6
/
3
P
7
/
3
P
1
/
3
P
2
/
3
P
3
/
3
P
4
/
3
P
5
/
3
P
6
/
3
P
7
/
3
P
0
/
3
P
1
/
2
P
2
/
2
SEG
1
SEG
2
SEG
3
SEG
4
SEG
6
SEG
5
SEG
7
V
CC
SEG
8
SEG
9
SEG
10
SEG
11
SEG
12
SEG
13
SEG
14
SEG
15
S
0
C
3
C
2
C
1
V
L
V
L
V
L
P
0
/
3
/
0
P
7
/
2
P
6
/
O
P
7
/
R
P
6
/
C
P
5
/
X
D
P
4
/
X
D
P
3
/
1
P
2
/
0
C
0
P
0
/
I
P
4
/
0
P
3
/
R
P
2
/
C
P
1
/
O
P
5
/
1
P
1
/
1
P4
1
/
φ
P4
0
X
IN
P7
0
/X
COUT
P7
1
/X
CIN
X
OUT
V
SS
P2
7
P2
6
P2
5
P2
4
P2
3
P2
2
P2
1
P2
0
RESET
M38203M4-XXXFP
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Package type : 80P6N-A
80-pin plastic molded QFP
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