1
4Bit Single Chip Microcontroller
DMC42C4008
DESCRIPTION
The DMC42C4008 is a 4-bit single chip
microcomputer having 8K bytes ROM and is
designed with CMOS silicon gate technology.
The DMC42C4008 includes peripherals such
as various timers, A/D converter(8ch), serial
communication interface(8bit), on-chip oscillator
and clock circuit. It provides the hardware
features, architectural enhancements and
instructions which are necessary to make it
a powerful and cost effective controller for
applications requiring up to 64K bytes of
programmable memory.
P80
P81
P82
P83
P20 / CLO
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
64
63
62
61
60
59
58
57
56
V
DD
P63
P62
P61
P60
PD3
PD2
PD1
PD0
PC3
PC2
PC1
PC0
AV
DD
AV
SS
PB3 / AD7
PB2 / AD6
PB1 / AD5
PB0 / AD4
PA3 / AD3
PA2 / AD2
PA1 / AD1
PA0 / AD0
P93
P92
P91
P90
P73
P72
P71
P70
TEST
PIN CONFIGURATIONS
P20 / CLO
P21
P22
P23
P00 / INT0 / TI0
P01 / INT1 / TI1
P02 /INT2 / TI2
P03 / INT3
P10 / SCK
64
63
62
61
60
59
58
57
56
55
54
53
52
P22
P23
P00 / INT0
P01 / INT1
P02 / INT2
P03 / INT3
P10 / SCK
P11 / SI
P12 / SO
P13 / BUZ
P30
P31
P32
P33
RESETB
XI
XO
P40
P41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
TI0
TI1
TI2
51
50
49
48
47
46
45
44
43
PD1
PD0
PC3
PC2
PC1
PC0
AV
DD
AV
SS
PB3 / AD7
PB2 / AD6
PB1 / AD5
PB0 / AD4
PA3 / AD3
PA2 / AD2
PA1 / AD1
PA0 / AD0
P93
P92
P91
P11 / SI
P12 / SO
P13 / BUZ
P30
P31
P32
P33
RESETB
XI
XO
P40
P41
P42
P43
P50
P51
P52
P53
V
SS
D
M
C
4
2
C
4
0
0
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P83
P21
P82
P81
P80
P63
P62
P61
P60
PD3
DMC42C4008
PD2
42
41
40
39
38
37
36
35
34
33
32
P90
20
P42
21
P43
22
P50
23
P51
24
P52
25
P53
V
DD
26
V
SS
27
TEST
28
P70
29
P71
30
P72
31
P73
DAEWOO [ DAEWOO SEMICONDUCTOR ]
