7220 Datasheet, PDF (21/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

OVERVIEW
1.1 Performance overview
The performance overview is shown in Table 1.1.1.
M37220M3-XXXSP/FP
Refer to “CHAPTER 4. M37220M3-XXXSP/FP.”
Table 1.1.1 Performance overview (1)
Parameter
Number of basic instructions
Instruction execution time
Clock frequency
Memory size
M37221M4-XXXSP
M37221M6-XXXSP/FP
M37221M8-XXXSP
M37221MA-XXXSP
CRT ROM
CRT RAM
Input/Output ports
P00–P07
I/O
P10, P15–P17
I/O
P11–P14
I/O
P20, P21
I/O
P22–P27
I/O
P30, P31
I/O
P32
P33, P34
P52–P55
I/O
Input
Output
Serial I/O
Multi-master I²C-BUS interface
A-D comparator
PWM output circuit
Timers
ROM correction function (See note)
Performance
71
0.5 µs (the minimum instruction execution time, at 8
MHz oscillation frequency)
8 MHz (maximum)
ROM
16 K bytes
RAM
320 bytes
ROM
24 K bytes
RAM
384 bytes
ROM
32 K bytes
RAM
512 bytes
ROM
40 K bytes
RAM
640 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)
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)
14-bit ! 1, 8-bit ! 6
8-bit timer ! 4
32 bytes ! 2
7220 Group User’s Manual
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