
APPENDIX
3.1 Built-in PROM version
3820 GROUP USER’S MANUAL
3–4
Performance
71
0.5
μ
s (minimum instructions at 8MHz oscillation frequency)
M38203E4 16384 bytes
(user ROM capacity; 16254 bytes)
M38207E8 32768 bytes
(user ROM capacity; 32638 bytes)
M38203E4 512 bytes
M38207E8 1024 bytes
43
8 MHz (maximum)
32 kHz (standard) to 50 kHz (maximum)
16 sources, 16 vectors
(includes key input interrupt)
8-bit
3
16-bit
2
8-bit
1
(operable in clock synchronous mode and UART mode)
8-bit
1 (operable only in clock synchronous mode)
Select 1/2 or 1/3
Select duty ratio value of 2, 3, or 4
40 (maximum)
4 (maximum)
14-bit
1
1-bit output
2 built-in circuits
(connect an external ceramic resonator or an external
quartz-crystal oscillator)
2.5 V (minimum) to 5.0 V (standard) to 5.5 V (maximum)
8
4.0 V (minimum) in high-speed mode. However, at f(X
IN
) =
(4
V
CC
– 8) MHz, 2.5 V to 4.0 V is possible.
32 mW (at 8 MHz oscillation frequency, V
CC
= 5 V)
0.045 mW (at 32 kHz oscillation frequency, V
CC
= 3 V)
–20
°
C to 85
°
C
CMOS silicon gate
80D0 (0.8 mm-pitch ceramic LCC)
80P6N-A (0.8 mm-pitch plastic mold QFP)
80P6S-A (0.65 mm-pitch plastic mold QFP)
80P6D-A (0.5 mm-pitch plastic mold QFP)
3.1.2 Performance overview
Table 3.1.2 shows a performance overview of the built-in PROM version.
The performance of the built-in PROM version is the same as that of the mask ROM version with the
exception that the PROM is built in.
Bias
Duty ratio
Segment output
Common output
Parameter
PROM
RAM
Main clock f(X
IN
)
Sub-clock f(X
CIN
)
Table 3.1.2 Performance overview of built-in PROM version
Basic instructions
Instruction execution time
Memory sizes
Programmable I/O ports
Oscillation frequency
Interrupts
Timers
Serial I/O1
Serial I/O2
LCD
(Liquid Crystal Display)
drive control functions
Watchdog timer
φ
clock output function
Clock generating circuit
Power source voltage
Power dissipation
Operating temperature range
Device structure
Packages
EPROM version
One Time PROM
version
High-speed mode
Low-speed mode
Note:
The parts enclosed by thick line denotes performance peculiar to the PROM version.