The SN8PC20 is a RISC-like high performance and low operating voltage 8-bit micro-controller (1.8V~3.6V @1MIPS). One clock per instruction cycle (1T) architecture will provide up to 8MIPS computation power. The device is designed with the excellent IC structure including the program memory up to 2K-word OTP ROM, data memory of 56-bytes RAM, one 8-bit timer counters (T0), a watchdog timer, two interrupt sources (T0, INT0), one channel duty/cycle programmable IR output (IROUT) with 400mA sunk current and 4-level stack buffers. There are four oscillator configurations to select for generating system clock, including High/Low Speed crystal, ceramic resonator or cost-saving RC. This device also includes an internal 8MHz RC oscillator for system clock and includes an internal low frequency RC oscillator for slow mode controlled by programming.
- Operating voltage: 1.8V~3.6V at Fcpu = 1MIPS
- ROM size: 2K * 16 bits
- RAM size: 56 * 8 bits
- 4-levels stack buffer
- Bi-directional I/O: P0, P1, P5
- Level trigger wakeup Input Port: P0, P1
- External interrupt: P0
- One channel IR output pin with 400mA sunk current
- One external interrupts: INT0
- One internal interrupts: T0
- On-chip watch dog
- Internal High Clock: 8MHz RC oscillator
- External High Clock: Crystal type up to 8MHz
- Internal Low Clock: RC oscillator, about 16KHz at 3V
- One clock per instruction cycle
- Most of instructions are one cycle only
- All ROM area lookup table function(MOVC)
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