SN8P2722

描述

The SN8P2722 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 2K-word OTP ROM, data memory of 128 bytes RAM, two 8-bit timer counters (T0, TC0), a watchdog timer, four interrupt sources (T0, TC0, ADC, INT0), one channel PWM output (PWM0), one channel Buzzer output (2K / 4K), 5-channel 12-bit ADC converter, 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 internal cost-saving RC, an internal 16MHz RC oscillator for system clock and includes an internal low frequency RC oscillator for slow mode controlled by programming.

特点

• OTP ROM size: 2K * 16 bits
• RAM size: 128 * 8 bits
• 8-levels stack buffer
• Bi-directional I/O: P0, P4, P5
• Level trigger wakeup Input Port: P0
• External interrupt: P0
• One external interrupts: INT0
• Three internal interrupts: T0, TC0, ADC
• One channel 2K / 4K Buzzer output
• 5-channel 12-bit ADC converter
• On-chip watchdog
• Internal High Clock: 16MHz RC oscillator
• External High Clock: Crystal t*e up to 16MHz / RC t*e up to 10MHz
• Internal Low Clock: RC oscillator, about 16KHz at 3V, 32KHz at 5V
• Most of instructions are one cycle only
• All ROM area lookup table function(MOVC)
• To support MUL instruction