GENERAL DESCRIPTION
The SN8P021X/8P011X is an 8-bit micro-controller utilized with CMOS technology fabrication and featured with low power consumption and high performance by its unique electronic structure. This chip is designed with the excellent IC structure, including the program memory up to 2K/1K-word OTP ROM, 64 bytes of the data memory, one 8-bit T0 basic timer, one 8-bit timer/event counter, a watch dog timer, three interrupt sources (T0, TC0, INT0), 13 I/O pins and 8 levels stack buffer. Besides, the user can choose desired oscillator configurations for the controller. There are three oscillator configurations to select for generating system clock, including high-performing crystal, ceramic resonator or cost-saving RC.

FEATURES
♦ Memory configuration
    OTP ROM size : 2048 * 16 bits for SN8P021X series
    OTP ROM size : 1024 * 16 bits for SN8P011X series
    RAM size : 64 * 8 bits.
♦ I/O pin configuration (Total 13 pins)
    One input port : 1 pin with wakeup function.
    Two Input/output ports : 12 pins.
♦ 56 powerful instructions
    All of instructions are 1 word with 1 or 2 cycles execution.
    Execution time : 1 cycle uses 4 clocks of oscillator.
    All ROM area JMP instruction.
    All ROM area Subroutine CALL instruction.
    All ROM area lookup table function. (MOVC instruction)
♦ Three interrupt sources :
    Two internal interrupts : T0, TC0
    One external interrupt : INT0
♦ Eight levels stack buffer
♦ An 8-bit basic timer.
♦ An 8-bit timer/event counter.
♦ A watchdog timer.
♦ Acceptable oscillator type :
    Crystal or ceramic resonator up to 8MHz
    RC oscillator up to 2 MHz
♦ Package :
    PDIP : 16, 18, 20