LC863448C/40C/32C/28C/24C/20C/16C

No.A0117-3/18

Bus Cycle Time / Instruction-Cycle Time

Bus Cycle Time

Instruction Cycle Time

Clock Divider

System Clock Oscillation

Oscillation Frequency

Voltage

0.424

μs

0.848

μs

1/2

Internal VCO

(Ref: X'tal 32.768kHz)

14.156MHz

4.5V to 5.5V

7.5

μs

15.0

μs

1/2

Internal RC

800kHz

4.5V to 5.5V

91.55

μs

183.1

μs

1/1

Crystal

32.768kHz

4.5V to 5.5V

183.1

μs

366.2

μs

1/2

Crystal

32.768kHz

4.5V to 5.5V

Ports

• Input / Output Ports

: 4 ports (23 terminals)

Data direction programmable in nibble units

: 1 port (8 terminals)

(If the N-ch open drain output is selected by option, the corresponding port data can be read in output mode.)

Data direction programmable for each bit individually: 3 ports (15 terminals)

AD Converter

• 4 channels×6-bit AD converters

Serial Interfaces

• IIC-bus compliant serial interface (Multi-master type)

Consists of a single built-in circuit with two I/O channels. The two data lines and two clock lines can be connected

internally.

PWM Output

• 3 channels×7-bit PWM

Timer

• Timer 0: 16-bit timer/counter

With 2-bit prescaler + 8-bit programmable prescaler

Mode 0: Two 8-bit timers with a programmable prescaler

Mode 1: 8-bit timer with a programmable prescaler + 8-bit counter

Mode 2: 16-bit timer with a programmable prescaler

Mode 3: 16-bit counter

The resolution of timer is 1 tCYC.

• Base Timer

Generate every 500ms overflow for a clock application

(using 32.768kHz crystal oscillation for the base timer clock)

Generate every 976

μs, 3.9ms, 15.6ms, 62.5ms overflow

(using 32.768kHz crystal oscillation for the base timer clock)

Clock for the base timer is selectable from 32.768kHz crystal oscillation, system clock or programmable prescaler

output of Timer 0

Remote Control Receiver Circuit (connected to the P73/INT3/T0IN terminal)

• Noise rejection function

• Polarity switching

Watchdog Timer

External RC circuit is required

Interrupt or system reset is activated when the timer overflows

ROM Correction Function

Max 128 bytes / 2 addresses