
MITSUBISHI MICROCOMPUTERS
M37754M8C-XXXGP, M37754M8C-XXXHP
M37754S4CGP, M37754S4CHP
DESCRIPTION
The M37754M8C-XXXGP is a single-chip microcomputer designed
with high-performance CMOS silicon gate technology. This is housed
in a 100-pin plastic molded QFP.
This microcomputer has a CPU and a bus interface unit. The CPU is
a 16-bit parallel processor that can also be switched to perform 8-bit
parallel processing, and the bus interface unit enhances the memory
access efficiency to execute instructions fast.
In addition to the 7700 Family basic instructions, the M37754M8C-
XXXGP has 6 special instructions which contain instructions for
signed multiplication/division; these added instructions improve the
servo arithmetic performance to control hard disk drives and so on.
This microcomputer also include the ROM, RAM, multiple-function
timers, motor control function, serial I/O, A-D converter, D-A con-
verter, and so on.
The differences between M37754M8C-XXXGP, M37754M8C-XXXHP,
M37754S4CGP and M37754S4CHP are listed in the table on the
next page: the internal ROM, usable processor mode, and package.
Therefore, the following descriptions will be for the M37754M8C-
XXXGP unless otherwise noted.
DISTINCTIVE FEATURES
 Number of basic machine instructions .................................... 109
(103 basic instructions of 7700 Family + 6 special instructions)
 Memory size
ROM ................................................ 60 Kbytes
RAM ................................................ 2048 bytes
 Instruction execution time
The fastest instruction at 40 MHz frequency ...................... 100 ns
 Single power supply ...................................................... 5V ±10 %
 Low power dissipation (at 40 MHz frequency) .......125 mW (Typ.)
 Interrupts ........................................................... 21 types, 7 levels
 Multiple-function 16-bit timer ................................................... 5+3
(three-phase motor drive waveform or pulse motor control wave-
form output)
 Serial I/O (UART or clock synchronous) ..................................... 2
 10-bit A-D converter ............................................ 8-channel inputs
 8-bit D-A converter ............................................ 2-channel outputs
 12-bit watchdog timer
 Programmable input/output
(ports P0—P11) ......................................................................... 87
 Small package [M37754M8C-XXXHP]
................................. 100-pin fine pitch QFP (read pitch : 0.5 mm)
APPLICATION
Control devices for personal computer peripheral equipment such as
CD-ROM drives, hard disk drives, high density FDD, printers
Control devices for office equipment such as copiers and facsimiles
Control devices for industrial equipment such as communication and
measuring instruments
Control devices for equipment required for motor control such as in-
verter air conditioner and general purpose inverter
M37754M8C-XXXGP PIN CONFIGURATION (TOP VIEW)
Outline 100P6S-A
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
P0
0
/A
0
P0
1
/A
1
P0
2
/A
2
P0
3
/A
3
P0
4
/A
4
P0
5
/A
5
P0
6
/A
6
P0
7
/A
7
P1
0
/A
8
P1
1
/A
9
P1
2
/A
10
P1
3
/A
11
P1
4
/A
12
P1
5
/A
13
P1
6
/A
14
P1
7
/A
15
P2
0
/A
16
P2
1
/A
17
P2
2
/A
18
P2
3
/A
19
P2
7
/A
23
P10
0
/D
0
/LA
0
P10
1
/D
1
/LA
1
P10
2
/D
2
/LA
2
P10
3
/D
3
/LA
3
P10
4
/D
4
/LA
4
P10
5
/D
5
/LA
5
P10
6
/D
6
/LA
6
P10
7
/D
7
/LA
7
P11
0
/D
8
 P111/D9
 P112D10
 P113/D11
 P114/D12
 P115/D13
 P116/D14
 P117/D15
 P30/WR
 P31/BHE
 P32/ALE
 P33/HLDA
VCC
VSS
→ E/RD
→ XOUT
← XIN
← RESET
CNVSS
← BYTE
 P40/HOLD
P87/TXD1 
P86/RXD1 
P85/CLK1 
P84/CTS1/RTS1/DA1/INT4 
P83/TXD0 
P82/RXD0/CLKS0 
P81/CLK0 
P80/CTS0/RTS0/CLKS1/DA0 
VCC
AVCC
VREF →
AVSS
VSS
P77/AN7/ADTRG 
P76/AN6 
P75/AN5 
P74/AN4 
P73/AN3 
P72/AN2 
P71/AN1 
P7
0
/AN
0
P9
5
/INT
3
/KI
4
P9
4
/CS
4
/RTP1
3
P9
3
/CS
3
/A
22
/RTP1
2
P9
2
/CS
2
/A
21
/U/RTP1
1
P9
0
/CS
0
P6
7
/TB
2IN
P6
6
/TB
1IN
P6
5
/TB
0IN
P6
4
/INT
2
P6
3
/INT
1
P6
2
/INT
0
P6
1
/TA
4IN
P6
0
/TA
4OUT
P5
7
/TA
3IN
/KI
3
P5
6
/TA
3OUT
/KI
2
P5
5
/TA
2IN
/KI
1
P5
4
/TA
2OUT
/KI
0
P5
3
/TA
1IN
/W/RTP0
3
P5
2
/TA
1OUT
/U/RTP0
2
P5
1
/TA
0IN
/V/RTP0
1
P5
0
/TA
0OUT
/W/RTP0
0
P4
7
P4
6
P4
5
P4
4
P4
3
P4
2/
φ1
P4
1/
RDY
P9
1
/CS
1
/A
20
/V/RTP1
0
81
50
82
49
83
48
84
47
85
46
86
45
87
44
88
43
89
42
90
41
91
40
92
39
93
38
94
37
95
36
96
35
97
M37754M8C-XXXGP
or
M37754S4CGP
34
98
33
99
32
100
31
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
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51