The SN8P2617 is a RISC-like high performance and low power consumption 8-bit micro-controller. One clock per instruction cycle (1T) architecture will provide up to 16MIPS computation power. The device is designed with the excellent IC structure including the program memory up to 4K-word Mask ROM, data memory of 256-bytes RAM, two 8-bit timer counters (T0, TC0), a watchdog timer, six interrupt sources (T0, TC0, INT0, INT1, INT2, SIO), one channel PWM output (PWM0), one channel Buzzer output (BZ0) and 8-level stack buffers. There are three oscillator configurations to select for generating system clock, including external High/Low Speed crystal, ceramic resonator or external cost-saving RC. This device also includes an internal low frequency RC oscillator for slow mode controlled by programming.