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The SN8P2318 is a RISC-like high performance and low power consumption 8-bit micro-controller. The device is designed with the excellent IC structure including the program memory up to 4K-word OTP ROM, data memory of 128 bytes RAM, one 8-bit timer counters (T0) , one 8-bit counters / timers (TC0), a watchdog timer, five interrupt sources (T0, TC0, T1, INT0, INT1), 4*32 LCD Driver (128dots), one channel programmable PWM and IR carry signal, 16-bit timer with capture timer function, RFC function, and 8-level stack buffers. There are four oscillator configurations to select for generating system clock, including external High/Low Speed crystal, ceramic resonator or external cost-saving RC, an internal 16MHz PLL oscillator for system clock. The external low speed crystal/ceramic resonator/RC oscillator support slow mode controlled by programming.

  • OTP ROM size: 4K * 16 bits

  • RAM size: 128 * 8 bits

  • 8-levels stack buffer

  • Bi-directional I/O: P0, P1, P2, P3, P5

  • Internal pull-up resistor: P0, P1, P2, P3, P5

  • Level trigger wakeup input port: P0, P1

  • 2 external interrupt: P0.0 (INT0), P0.1(INT1)

  • 3 internal interrupts: T0, TC0, T1

  • 8-bit timer: T0

  • 8-bit counter / timer, programmable PWM and IR output: TC0

  • 16-bit timer with capture timer

  • 5-channel RFC function

  • 4*32 LCD Driver (128dots) supports internal C-type and external R-type bias

  • On-chip watchdog

  • Internal High Clock: 16MHz PLL oscillator

  • External High Clock: Crystal type up to 16MHz / RC type up to 10MHz

  • External Low Clock: 32KHz Crystal type / RC type for LCD/PLL/slow mode

  • One clock per instruction cycle

  • Most of instructions are one cycle only

  • All ROM area lookup table function(MOVC)

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