M37221EF Datasheet, PDF (3/63 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37221EF-XXXSP,M37221EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
FUNCTIONS
Parameter
Number of basic instructions
Instruction execution time
Clock frequency
Memory size
Input/Output ports
ROM
RAM
CRT ROM
CRT RAM
P0
P10, P15–P17
P11–P14
P20, P21
P22–P27
P30, P31
P32
P33, P34
P52–P55
Serial I/O
Multi-master I²C-BUS interface
A-D comparator
D-A converter
PWM output circuit
Timers
ROM correction function
Subroutine nesting
Interrupt
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Input
Output
Clock generating circuit
Power source voltage
Power dissipation
CRT ON
CRT OFF
In stop mode
Operating temperature range
Device structure
Package
CRT display function
Number of display characters
Dot structure
Kinds of characters
Kinds of character sizes
Kinds of character colors
Display position (horizontal, vertical)
Functions
71
0.5 µs (the minimum instruction execution time, at 8 MHz oscillation fre-
quency)
8 MHz (maximum)
62 K bytes
1216 bytes
8 K bytes
96 bytes
8-bit ! 1 (N-channel open-drain output structure, can be used as PWM
output pins, INT input pins, A-D input pin)
4-bit ! 1 (CMOS input/output structure, can be used as CRT output pin,
A-D input pins, INT input pin)
4-bit ! 1 (CMOS input/output structure, can be used as multi-master I²C-
BUS interface)
2-bit ! 1 (CMOS input/output or N-channel open-drain output structure,
can be used as serial I/O pins)
6-bit ! 1 (CMOS input/output structure, can be used as serial input pin,
external clock input pins)
2-bit ! 1 (CMOS input/output or N-channel open-drain output structure,
can be used as A-D input pins, D-A conversion output pins)
1-bit ! 1 (N-channel open-drain output structure)
2-bit ! 1 (can be used as CRT display clock I/O pins)
4-bit ! 1 (CMOS output structure, can be used as CRT output pins)
8-bit ! 1
1 (2 systems)
6 channels (6-bit resolution)
2 (6-bit resolution)
14-bit ! 1, 8-bit ! 6
8-bit timer ! 4
32 bytes ! 2
96 levels (maximum)
External interrupt ! 3, Internal timer interrupt ! 4, Serial I/O interrupt ! 1,
CRT interrupt ! 1, Multi-master I²C-BUS interface interrupt ! 1,
f(XIN)/4096 interrupt ! 1, VSYNC interrupt ! 1, BRK interrupt ! 1
2 built-in circuits (externally connected a ceramic resonator or a quartz-
crystal oscillator)
5 V ± 10 %
165 mW typ. (at oscillation frequency fCPU = 8 MHz, fCRT = 8 MHz)
110 mW typ. (at oscillation frequency fCPU = 8 MHz)
1.65 mW (maximum)
–10 °C to 70 °C
CMOS silicon gate process
42-pin shrink plastic molded DIP
24 characters ! 2 lines (maximum 16 lines by software)
12 ! 16 dots
256 kinds
3 kinds
Maximum 7 kinds (R, G, B); can be specified by the character
64 levels (horizontal) ! 128 levels (vertical)
3