FEATURES

♦ Memory configuration

OTP ROM size: 1K * 16 bits.

RAM size: 48 * 8 bits.

♦ Four levels stack buffer.

♦ I/O pin configuration

Input only: P1.1.

Bi-directional: P0, P1, P2, P5.

Wakeup: P0, P1.

Pull-up resisters: P0, P1, P2, P5.

External interrupt: P0.

One pin with open-drain: P1.0.

♦ 3 interrupt sources

Two internal interrupts: T0, TC0.

One external interrupts: INT0.

♦ Powerful instructions

One clock per machine cycle

Most of instructions are one cycle only.

All ROM area JMP instruction.

All ROM area lookup table function (MOVC)

♦ One channel PWM output. (PWM0)

♦ One channel Buzzer output. (BZ0)

♦ Two 8-bit timer counters. (T0, TC0).

♦ One RTC timer. (T0)

♦ On chip watchdog timer.

♦ Three system clocks

External high clock: RC type up to 10 MHz

External high clock: Crystal type up to 16 MHz

Internal low clock: RC type 16KHz(3V), 32KHz(5V)

Internal high clock: 16MHz RC type.

♦ Four operating modes

Normal mode: Both high and low clock active

Slow mode: Low clock only

Sleep mode: Both high and low clock stop

Green mode: Periodical wakeup by T0 Timer

♦ Package (Chip form support)

PDIP 14 pins

SOP 14 pins

SSOP 16 pins