
MITSUBISHI MICROCOMPUTERS
3802 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3
FUNCTIONAL BLOCK DIAGRAM (Package : 64P4B)
CNTR1
CNTR
0
VREF AVSS
RAM
ROM
CPU
A
X
Y
S
PC
H
PCL
PS
VSS
32
RESET
27
VCC
1
26
CNVSS
P0(8)
49 50 51
52 53
54
55
56
P1(8)
41
43 45
47
42 44
46
48
P2(8)
33 35 37 39
36
38 40
P3(8)
57 59
61 63
58 60
62 64
P4(8)
20 22
24 28
21 23
25
29
P5(8)
12 14
16 18
13
15
17
19
P6(8)
46
10
59
11
3
34
2
XIN
30
XOUT
31
D-A
(8)
D-A
(8)
A-D
(8)
Reset input
Clock generating circuit
Clock input Clock output
Prescaler 12 (8)
Timer 1 (8)
Timer 2 (8)
I/O port P4 I/O port P0I/O port P1I/O port P2I/O port P3
I/O port P5
I/O port P6
7 8
SI/O1 (8)
INT
0
INT2
INT4
Prescaler X (8)
Timer X (8)
Prescaler Y (8)
Timer Y (8)
converter 2
converter 1
~
SI/O2 (8)
PWM (8)
INT3
converter
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