ATtiny261/ATtiny461/ATtiny861 Features:

• 2/4/8K Bytes of In-System Self-Programmable Flash
• 128/256/512 Bytes In-System Programmable EEPROM
• 128/256/512 Bytes Internal SRAM
• One 8/16-bit timer/counter with PWM and prescaler
• One 8/10-bit High-speed timer/counter with PWM and separate prescaler
• 10-bit ADC
• USI-Universal Serial Interface
• debugWIRE for on-chip-debug
• Up to 20 MIPS throughput at 20 MHz (261, 461, 861)
• 1.8 - 5.5 V operation (261V, 461V, 861V)