M37220M3-010SP MITSUBISHI [Mitsubishi Electric Semiconductor], M37220M3-010SP Datasheet - Page 4

• Manufacturer Part Number: M37220M3-010SP
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER?
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

4
PIN DESCRIPTION
V
CNV
RESET
X
X
P0
P0
P0
A-D4,
P0
P1
P1
INT3,
P1
P1
P2
P2
P2
P2
P2
P2
P3
DA1,
P3
DA2,
P3
P3
P3
CC,
IN
OUT
0
5
6
7
0
5
6
7
0
1
2
3
4
5
0
1
2
3
4
/PWM0–
/PWM5,
/INT2/
/INT1
–P1
/A-D1
/A-D2,
/A-D3
/S
/S
/S
/TIM3,
/TIM2,
–P2
/A-D5/
/A-D6/
/OSC1,
/OSC2
Pin
SS
V
CLK
OUT
IN
SS
4
,
7
,
,
,
Power source
CNV
Reset input
Clock input
Clock output
I/O port P0
PWM output
External interrupt
input
Analog input
I/O port P1
Analog input
External interrupt
input
I/O port P2
External clock
input
Serial I/O data
input/output
Serial I/O synchro-
nizing clock input/
output
I/O port P3
Analog input
D-A conversion
output
Input port P3
Clock input for
CRT display
Clock output for
CRT display
Name
SS
Output
Output
Output
Output
Output
Input/
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
Apply voltage of 5 V
This is connected to V
To enter the reset state, the reset input pin must be kept at a “L” for 2 s or more (under
normal V
If more time is needed for the quartz-crystal oscillator to stabilize, this “L” condition should
be maintained for the required time.
This chip has an internal clock generating circuit. To control generating frequency, an
external ceramic resonator or a quartz-crystal oscillator is connected between pins X
X
the X
Port P0 is an 8-bit I/O port with direction register allowing each I/O bit to be individually
programmed as input or output. At reset, this port is set to input mode. The output structure
is N-channel open-drain output. The note out of this Table gives a full of port P0 function.
Pins P0
structure is N-channel open-drain output.
Pins P0
Pins P0
Port P1 is an 8-bit I/O port and has basically the same functions as port P0. The output
structure is CMOS output.
Pins P1
Pin P1
Port P2 is an 8-bit I/O port and has basically the same functions as port P0. The output
structure is CMOS output.
Pins P2
Pins P2
output structure is N-channel open-drain output.
Pin P2
ture is N-channel open-drain output.
Ports P3
CMOS output or N-channel open-drain output structure can be selected as the ports P3
and P3
Pins P3
Pins P3
Ports P3
Pin P3
Pin P3
output.
OUT
. If an external clock is used, the clock source should be connected to the X
OUT
4
5
0
3
1
0
6
6
5
3
1
0
is also used as CRT display clock output pin OSC2.The output structure is CMOS
is also used as an external interrupt input pins INT3.
is also used serial I/O syncronizing clock input/output pin S
. The output structure of port P3
is also used as CRT display clock input pin OSC1.
0
0
3
–P0
, P0
–P1
, P2
, P2
, P3
CC
, P3
is also used as an analog interrupt input pin A-D4.
–P3
pin should be left open.
, P3
conditions).
1
5
7
7
4
2
2
1
4
are also used as analog input pins A-D5, A-D6 respectively.
are also used as PWM output pins PWM0–PWM5 respectively.The output
are also used as external interrupt input pins INT2, INT1 respectively.
are also used as an analog input pins A-D1 to A-D3.
is also used an external clock input pins TIM3, TIM2 respectively.
are also used serial I/O data input/output pins S
are a 3-bit I/O port and have basically the same functions as port P0. Either
are a 2-bit input port.
are also used as D-A conversion output pins DA1, DA2 respectively.
SS
10 % (typical) to V
.
Functions
with ON-SCREEN DISPLAY CONTROLLER
2
CC
is N-channel open-drain output.
, and 0 V to V
MITSUBISHI MICROCOMPUTERS
M37220M3-XXXSP
SS
.
OUT
, S
CLK
IN
. The output struc-
respectively. The
IN
pin and
IN
and
0