Microchip PIC18F2221-I/SO PIC Microcontroller, PIC, 4 kB Flash, 28-Pin SOIC

The Microchip flash microcontroller with 10-Bit A/D and nanoWatt technology has four crystal modes, using crystals or ceramic resonators. All of the devices in the microcontroller incorporate a range of features that can significantly reduce power consumption during operation.

C Compiler optimized architecture
Optional extended instruction set designed to optimize re-entrant code
100,000 Erase/Write cycle enhanced flash program memory typical
1,000,000 Erase/Write cycle data EEPROM memory typical
Flash/data EEPROM retention 100 years typical
Self programmable under software control
Priority levels for interrupts
8 x 8 Single cycle hardware multiplier
Extended watchdog timer (WDT) programmable period from 4 ms to 131 s
Single supply 5 V In circuit serial programming (ICSP™) via two pins
In circuit debug (ICD) via two pins
Wide operating voltage range 2.0 V to 5.5 V