The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 4KB ISP flash memory, 256-Byte EEPROM, 256B SRAM, 12 general purpose I/O lines, 32 general purpose working registers, an 8-bit timer/counter with two PWM channels.

High Performance, Low Power AVR® 8-bit Microcontroller
Advanced RISC Architecture
120 Powerful Instructions – Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
High Endurance, Non-volatile Memory Segments
2K/4K/8K Bytes of In-System, Self-programmable Flash Program Memory
Endurance: 10,000 Write/Erase Cycles
128/256/512 Bytes of In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
128/256/512 Bytes of Internal SRAM
Data Retention: 20 years at 85°C / 100 years at 25°C
Programming Lock for Self-programming Flash & EEPROM Data Security
Peripheral Features