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M37905M4C-XXXFP, M37905M4C-XXXSP
M37905M6C-XXXFP, M37905M6C-XXXSP
M37905M8C-XXXFP, M37905M8C-XXXSP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
DESCRIPTION
These are single-chip 16-bit microcomputers designed with high-per-
formance CMOS silicon gate technology, being packaged in 64-pin
plastic molded QFP or shrink plastic molded SDIP. These microcom-
puters support the 7900 Series instruction set, which are enhanced
and expanded instruction set and are upper-compatible with the
7700/7751 Series instruction set.
The CPU of these microcomputers is a 16-bit parallel processor that
can also be switched to perform 8-bit parallel processing. Also, the
bus interface unit of these microcomputers enhances the memory
access efficiency to execute instructions fast. Therefore, these mi-
crocomputers are suitable for office, business, and industrial equip-
ment controller that require high-speed processing of large data.
Also, they are suitable for motor-control equipment since each of
them includes the motor control circuit.
DISTINCTIVE FEATURES
Number of basic machine instructions .................................... 203
Memory
[M37905M4C-XXXFP, M37905M4C-XXXSP]
ROM .............................................................................. 32 Kbytes
RAM .............................................................................1024 bytes
[M37905M6C-XXXFP, M37905M6C-XXXSP]
ROM .............................................................................. 48 Kbytes
RAM .............................................................................3072 bytes
[M37905M8C-XXXFP, M37905M8C-XXXSP]
ROM .............................................................................. 60 Kbytes
RAM .............................................................................3072 bytes
Instruction execution time
The fastest instruction at 20 MHz frequency ........................ 50 ns
Single power supply .................................................... 5 V ± 0.5 V
Interrupts ........... 8 external sources, 23 internal sources, 7 levels
Multi-functional 16-bit timer ................................................. 10 + 3
(Three-phase motor drive waveform and Pulse motor drive wave-
form output are available.)
Serial I/O (UART or Clock synchronous)..................................... 3
10-bit A-D converter ..........................................12-channel inputs
8-bit D-A converter ............................................2-channel outputs
12-bit watchdog timer
Programmable input/output (ports P1, P2, P4, P5, P6, P7, P8) .. 50
APPLICATION
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, requiring motor control, such as
inverter air conditioners and general-purpose inverters
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
22
21
20
19
18
17
P
3
/
3
P
2
/
2
P
1
/
1
P
5
/
I
/
1
P
4
/
O
/
0
P
3
/
I
/
3
P
2
/
O
/
2
P
1
/
I
/
1
P
0
/
O
/
0
P
7
/
7
/
I
/
P
6
/
6
/
I
/
P
5
/
5
/
I
/
P
C
/
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
3
3
32
31
30
29
28
27
26
25
24
23
P
0
/
0
P
7
/
I
/
3
P
6
/
O
/
2
MD0
RESET
X
IN
X
OUT
V
CONT
V
SS
P5
3
/INT
3
/RTP
TRG0
P5
2
/INT
2
/RTP
TRG1
P5
1
/INT
1
P4OUT
CUT
/INT
0
P4
7
/TA8
IN
/RTP3
3
P4
6
/TA8
OUT
/RTP3
2
P4
5
/TA7
IN
/RTP3
1
P4
4
/TA7
OUT
/RTP3
0
P4
3
/TA6
IN
/RTP2
3
P4
2
/TA6
OUT
/RTP2
2
P
3
/
I
P
2
/
O
P
1
/
I
P
0
/
O
P
7
/
1
P
6
/
1
P
5
/
1
/
1
P
4
/
1
/
1
P
3
/
0
P8
3
/AN
11
/T
X
D
2
P8
2
/AN
10
/R
X
D
2
P8
1
/AN
9
/CTS
2
/CLK
2
P8
0
/AN
8
/CTS
2
/RTS
2
/DA
1
V
CC
AV
CC
V
REF
AV
SS
V
SS
P7
7
/AN
7
/DA
0
P7
6
/AN
6
P7
5
/AN
5
P7
4
/AN
4
M37905M
X
C-XXXFP
P1
1
/CTS
0
/CLK
0
P1
0
/CTS
0
/RTS
0
P
1
/
I
/
1
P
0
/
O
/
0
M
P
7
P
6
(
I
)
P
5
(
I
)
P
4
(
I
)
P1
2
/R
X
D
0
N
N
M37905MxC-XXXFP PIN CONFIGURATION (TOP VIEW)
Outline 64P6N-A
Note :
Allocation of pins TB0
IN
to TB2
IN
can be switched by software.