High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family
Advanced RISC Architecture ̶ 131 Powerful Instructions – Most Single Clock Cycle Execution ̶ 32 x 8 General Purpose Working Registers ̶ Fully Static Operation ̶ Up to 20 MIPS Throughput at 20MHz ̶ On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory Segments ̶ 4/8/16/32KBytes of In-System Self-Programmable Flash program memory ̶ 256/512/512/1KBytes EEPROM ̶ 512/1K/1K/2KBytes Internal SRAM ̶ Write/Erase Cycles: 10,000 Flash/100,000 EEPROM ̶ Data retention: 20 years at 85C/100 years at 25C(1) ̶ Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation ̶ Programming Lock for Software Security
Atmel® QTouch® library support ̶ Capacitive touch buttons, sliders and wheels ̶ QTouch and QMatrix® acquisition ̶ Up to 64 sense channels
Peripheral Features ̶ Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode ̶ One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode ̶ Real Time Counter with Separate Oscillator ̶ Six PWM Channels ̶ 8-channel 10-bit ADC in TQFP and QFN/MLF package Temperature Measurement ̶ 6-channel 10-bit ADC in PDIP Package Temperature Measurement ̶ Programmable Serial USART ̶ Master/Slave SPI Serial Interface ̶ Byte-oriented 2-wire Serial Interface (Philips I2 C compatible) ̶ Programmable Watchdog Timer with Separate On-chip Oscillator ̶ On-chip Analog Comparator ̶ Interrupt and Wake-up on Pin Change
Special Microcontroller Features ̶ Power-on Reset and Programmable Brown-out Detection ̶ Internal Calibrated Oscillator ̶ External and Internal Interrupt Sources ̶ Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
I/O and Packages ̶ 23 Programmable I/O Lines ̶ 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
