1 1 1 PRODUCT OVERVIEW 1.1 FEATURES  Features Selection Table CHIP ROM RAM Stack Timer PWM RFC Ext. Int I/O LCD Driver Package T0 TC0 T1 Dot C-type R-type SN8P2308 4K*16 128*8 8 V V 1 1 2-ch 1 25 4*32 V V LQFP64 SN8P2318 4K*16 128*8 8 V V 1 1 5-ch 2 29 4*32 V V LQFP64 SN8P2317 4K*16 128*8 8 V V 1 1 5-ch 2 25 4*21 V V LQFP48  Memory configuration  Fcpu (Instruction cycle) ROM size: 4K * 16 bits. Fcpu = Fosc/1, Fpsc/2, Fosc/4, Fosc/8, Fosc/ 16. RAM size: 128 * 8 bits.  One 8-bit basic timer. (T0).  8 levels stack buffer.  One 8-bit timer/counter (TC0) with duty/cycle  5 interrupt sources programmable PWM and IR carry signal. 3 internal interrupts: T0, TC0, T1  One 16-bit timer/counter (T1) with auto-reload/ 2 external interrupt: INT0, INT1 counter/capture timer supports for RFC function.  5-Channel RFC (Resistor to Frequency Converter)  I/O pin configuration  4*32 LCD Driver (128 dots) supports internal C type Bi-directional: P0, P1, P5. and external R type bias. Bi-directional and shared with SEG pins: P2, P3.  On chip watchdog timer and clock source is Input only shared with reset pin: P0.3. Internal low clock RC type (16KHz @3V, 32KHz Wakeup: P0, P1 level change. @5V). Pull-up resisters: P0, P1, P2, P3, P5. External interrupt pin:  4 system clocks P0.0 trigger edge controlled by PEDGE. External high clock: RC type up to 10 MHz P0.1 level change trigger. External high clock: Crystal type up to 16 MHz Event counter input: Internal high clock: PLL 16MHz from 32K X’tal. TC0 event counter input pin: P0.0 Internal low clock: RC type 16KHz(3V), 32KHz(5V) T1 event counter input pin: P0.2 RFC channel pins: P1.0~P1.4.  4 operating modes Normal mode: Both high and low clock active  3-Level LVD: 2.0V/2.4V/3.6V Slow mode: Low clock only.  Powerful instructions Sleep mode: Both high and low clock stop Instruction’s length is one word. Green mode: Periodical wakeup by timer Most of instructions are one cycle only. All ROM area JMP/CALL instruction.  Package (Chip form support) All ROM area lookup table function (MOVC). LQFP 48 pin LQFP 64 pin