MITMSIUTBSUISBHIISMHICMRICORCOCMOPMUTPEURTSERS
M37221MM3762-2X1MX6X-XSXXPSP
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DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M37221M6-XXXSP is a single-chip microcomputer designed with
CMOS silicon gate technology. It is housed in a 42-pin shrink plastic
molded DIP.
In addition to their simple instruction sets, the ROM, RAM and I/O
addresses are placed on the same memory map to enable easy pro-
gramming.
1
2
3
42
41
40
39
H
SYNC
SYNC
P5
P5
P5
2
/R
V
3
/G
4
/B
P0
P0
P0
P0
P0
P0
0
1
2
3
4
5
/PWM0
/PWM1
/PWM2
/PWM3
/PWM4
/PWM5
The M37221M6-XXXSP has a PWM output function and a OSD dis-
play function, so it is useful for a channel selection system for TV.
P55
/OUT1
4
5
P2
0
/SCLK
38
37
36
6
7
8
P21/SOUT
FEATURES
P2
2
/SIN
Number of basic instructions .....................................................71
•
•
35
34
P1
P1
P1
0
/OUT2
/SCL1
/SCL2
Memory size
9
1
2
P06
/INT2/A-D4
P0 /INT1
ROM ........................................................24 K bytes
RAM.......................................................... 384 bytes
ROM for display......................................... 8 K bytes
RAM for display .......................................... 96 bytes
10
7
33
32
11
12
P2
3
/TIM3
/TIM2
P13
/SDA1
31
P2
4
P14/SDA2
P2
P2
P2
5
6
7
13
14
30
29
P1
P1
P1
P3
5/A-D1/INT3
The minimum instruction execution time
•
6
/A-D2
/A-D3
/A-D5
.......................................... 0.5 s (at 8 MHz oscillation frequency)
15
16
17
28
27
26
7
0
Power source voltage .................................................. 5 V ± 10 %
•
•
D-A
P3
CNVSS
Power dissipation............................................................. 165 mW
2
P31
/A-D6
(at 8 MHz oscillation frequency, VCC=5.5V, at CRT display)
18
19
25
24
Subroutine nesting....................................... 96 levels (maximum)
RESET
•
Interrupts....................................................... 14 types, 14 vectors
OSC1/P3
3
4
XIN
•
8-bit timers .................................................................................. 4
20
21
23
22
OSC2/P3
X
OUT
•
Programmable I/O ports (Ports P0, P1, P2, P30–P32) .............. 27
•
VSS
VCC
Input ports (Ports P33, P34) .........................................................2
•
Output ports (Ports P52–P55) ...................................................... 4
•
12 V withstand ports .................................................................... 6
•
Outline 42P4B
LED drive ports ........................................................................... 4
•
Serial I/O ............................................................ 8-bit ✕ 1 channel
•
2
Multi-master I C-BUS interface ............................... 1 (2 systems)
•
A-D comparator (6-bit resolution) ................................ 6 channels
•
PWM output circuit......................................... 14-bit ✕ 1, 8-bit ✕ 6
•
CRT display function
•
Number of display characters ................ 24 characters ✕ 2 lines
(16 lines maximum)
Kinds of characters ..................................................... 256 kinds
Dot structure .......................................................... 12 ✕ 16 dots
Kinds of character sizes.................................................. 3 kinds
Kinds of character colors (It can be specified by the character)
maximum 7 kinds (R, G, B)
Kinds of character background colors (It can be specified by the character)
maximum 7 kinds (R, G, B)
Kinds of raster colors (maximum 7 kinds)
Display position
Horizontal .................................................................. 64 levels
Vertical .................................................................... 128 levels
Bordering (horizontal and vertical)
APPLICATION
TV
1