This powerful 10 MIPS (100 nanosecond instruction execution) yet easy to program (only 77 single-word instructions) CMOS Flash-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into a 28-pin package and is upwardly compatible with the PIC16C5X. PIC12CXXX, PIC16CXX and PIC17CXX devices provide a seamless migration path of software code to higher levels of hardware integration. PIC18F4220, C compiler-friendly development environment, includes 256 byte EEPROM, Self-programming, an MPLAB® ICD, 2 capture/compare/PWM functions, 13 channels 10-bit Analog-to-Digital (A/D) converter, 2 comparators , synchronous serial port, 3-wire Serial Peripheral Interface (SPI™) or 2-wire Inter-Integrated Circuit (I²C™) bus and Addressable Universal Asynchronous Transceiver (AUSART), 8 MHz internally configurable RC oscillator, and advanced low-power oscillator controls. All these features make them ideal for battery-powered and power-critical applications, including instrumentation and monitoring, data acquisition, power conditioning, environmental monitoring, telecom and consumer audio/video applications.