MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
45
28
RESET
NC
P05/D5
P06/D6
P07/D7
P52
46
47
27
D5
D6
D7
NC
P51/XCOUT
P50/XCIN
NC
VCC
VSS
AVSS
NC
XOUT
XIN
VSS
26
48
49
25
24
50
23
NC
VSS
P53
VCC
VSS
M37478E8-XXXFP
22
21
20
19
18
17
51
52
VSS
53
54
A10
A9
P17/S
RDY/A10
Oscillation
circuit
P16/SCLK/A9
P15/TXD/A8
NC
55
56
A8
NC
: Same functions as M5L27C256
Fig. 31 Pin connection in EPROM mode
1
32
31
A
10
P0
P0
P0
P0
P0
P0
P0
P0
P4
P4
P3
P3
P3
P3
7
6
5
4
3
2
1
0
1
0
3
2
1
0
D
D
7
6
P17/SRDY
2
3
A
9
P1
P1
P1
6
5
4
/SCLK
D
D
D
D
D
D
5
4
30
29
28
27
26
A
A
A
A
A
8
7
6
5
4
/TX
D
4
5
/RX
D
3
2
1
0
P1
P1
3
2
/T
1
0
1
0
6
/T
7
P1
P1
8
25
24
23
22
9
A
A
A
A
3
2
A
A
14
13
P2
3
2
1
0
/IN
/IN
/IN
/IN
3
2
1
0
10
P2
P2
P2
V
PP
1
0
11
12
13
14
15
/CNTR
/CNTR
1
0
21
20
19
18
OE
A
A
12
11
CE
V
REF
IN
OUT
SS
/INT
/INT
1
Oscillation
circuit
X
0
X
RESET
V
SS
V
16
17
V
CC
V
CC
V
SS
: Same functions as M5L27C256
Fig. 32 Pin connection in EPROM mode
37
MITSUBISHI [ Mitsubishi Group ]
