The PIC18F2221-I/SO is a 8-bit enhanced Flash Microcontroller with 10-bit A/D and nanoWatt technology. This powerful 10 MIPS (100 nanosecond instruction execution), yet easy-to-program (only 77 single word instructions) and is upwards compatible with the PIC16C5X, PIC12CXXX, PIC16CXX and PIC17CXX devices and provides a seamless migration path of software code to higher levels of hardware integration. The PIC18F2221 features a C compiler-friendly development environment, 256 bytes of EEPROM, self-programming, an ICD, 2 capture/compare/PWM functions, 13 channels of 10-bit Analogue-to-digital (A/D) converter, 2 comparators, the synchronous serial port can be configured as either 3-wire Serial Peripheral Interface (SPI?) or the 2-wire Inter-Integrated Circuit (I2C?) bus and Enhanced Universal Asynchronous Receiver Transmitter (EUSART), 8MHz internal RC oscillator and advanced low power oscillator controls.
- CPU - Up to 10 MIPS performance and C compiler optimized RISC architecture
- System - Watchdog timer with separate RC oscillator
- nanoWatt power managed modes - Run, idle and sleep modes
- Analogue - 10-bit ADC, 10 channels, 100kSPS, programmable low voltage detection module
- Peripherals - EUSART module including LIN bus support and four timer modules
- Flexible oscillator structure - Four crystal modes, up to 40MHz and fail-safe clock monitor
- 100 years Typical flash/data EEPROM retention
- Self-programmable under software control
- Priority levels for interrupts
- In-Circuit Debug (ICD) via two pins
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