MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PIN CONFIGURATION (TOP VIEW)
1
2
3
42
41
40
P5
7/SRDY
/SCLK
3
P5
P0
P0
P0
P0
P0
P0
P0
P0
P4
P4
P4
P4
P3
P3
P3
P3
RESET
P5
P5
2
7
6
5
4
3
2
1
0
3
2
1
0
P1
P1
P1
P1
P1
P1
6
4
5
6
39
38
37
36
5
/T
/R
X
D
D
4
X
45
28
NC
RESET
NC
3
2
/T
/T
1
0
1
0
7
6
5
4
3
2
1
0
46
47
27
P0
P0
P0
P5
5
6
7
2
7
26
P5
P5
1
/XCOUT
/XCIN
35
34
33
8
9
P1
P1
/IN
/IN
/IN
/IN
/IN
/IN
/IN
/IN
48
49
25
24
23
22
21
20
19
18
17
0
NC
M37478M4-XXXFP
M37478M8-XXXFP
M37478E8-XXXFP
10
11
12
13
14
P2
7
6
5
4
3
2
1
0
V
50
51
52
NC
V
V
CC
32
31
30
P2
P2
P2
P2
P2
P2
P2
V
SS
SS
P5
3
AVSS
NC
53
54
P1
P1
P1
7/SRDY
/SCLK
29
28
27
26
3
2
/CNTR
/CNTR
1
0
X
X
OUT
6
15
16
55
56
IN
5
/T
X
D
1
0
/INT
/INT
1
NC
NC
17
18
19
20
21
0
25
24
23
22
REF
IN
OUT
SS
X
1
/XCOUT
/XCIN
X
0
V
VCC
Outline 42P4B
42S1B-A (Window)
Outline 56P6N-A
Note : The only differences between the 42P4B package product and the 56P6N-A package product are package shape, ab-
solute maximum ratings and the fact that the 56P6N-A package product has an AVSS pin.
2
MITSUBISHI [ Mitsubishi Group ]
