high-performance risc cpu: ? c compiler optimized architecture/instruction set: - source code compatible with the pic16 and pic17 instruction sets ? linear program memory addressing to 128 kbytes ? linear data memory addressing to 3840 bytes ? 1 kbyte of data eeprom ? up to 10 mips operation: - dc – 40 mhz osc./clock input - 4 mhz – 10 mhz osc./clock input with pll active ? 16-bit wide instructions, 8-bit wide data path ? priority levels for interrupts ? 31-level, software accessible hardware stack ? 8 x 8 single cycle hardware multiplier external memory interface (pic18f8x20 devices only): ? address capability of up to 2 mbytes ? 16-bit interface peripheral features: ? high current sink/source 25 ma/25 ma ? four external interrupt pins ? timer0 module: 8-bit/16-bit timer/counter ? timer1 module: 16-bit timer/counter ? timer2 module: 8-bit timer/counter ? timer3 module: 16-bit timer/counter ? timer4 module: 8-bit timer/counter ? secondary oscillator clock option – timer1/timer3 ? five capture/compare/pwm (ccp) modules: - capture is 16-bit, max. resolution 6.25 ns (tcy/16) - compare is 16-bit, max. resolution 100 ns (tcy) - pwm output: pwm resolution is 1 to 10-bit ? master synchronous serial port (mssp) module with two modes of operation: - 3-wire spi? (supports all 4 spi modes) - i2c? master and slave mode ? two addressable usart modules: - supports rs-485 and rs-232 ? parallel slave port (psp) module analog features: ? 10-bit, up to 16-channel analog-to-digital converter (a/d): - conversion available during sleep ? programmable 16-level low-voltage detection (lvd) module: - supports interrupt on low-voltage detection ? programmable brown-out reset (pbor) ? dual analog comparators: - programmable input/output configuration special microcontroller features: ? 100,000 erase/write cycle enhanced flash program memory typical ? 1,000,000 erase/write cycle data eeprom memory typical ? 1 second programming time ? flash/data eeprom retention: > 40 years ? self-reprogrammable under software control ? power-on reset (por), power-up timer (pwrt) and oscillator start-up timer (ost) ? watchdog timer (wdt) with its own on-chip rc oscillator for reliable operation ? programmable code protection ? power saving sleep mode ? selectable oscillator options including: - 4x phase lock loop (of primary oscillator) - secondary oscillator (32 khz) clock input ? in-circuit serial programming? (icsp?) via two pins ? mplab? in-circuit debug (icd) via two pins cmos technology: ? low-power, high-speed flash technology ? fully static design ? wide operating voltage range (2.0v to 5.5v) ? industrial and extended temperature ranges