Overview
The Atmel® ATmega328P is a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega328P achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
Features
● High performance, low power AVR® 8-bit microcontroller ● Advanced RISC architecture
● 131 powerful instructions – most single clock cycle execution
● 32×8 general purpose working registers
● Fully static operation
● Up to 16MIPS throughput at 16MHz
● On-chip 2-cycle multiplier
● High endurance non-volatile memory segments
● 32K bytes of in-system self-programmable flash program memory
● 1Kbytes EEPROM
● 2Kbytes internal SRAM
● Write/erase cycles: 10,000 flash/100,000 EEPROM
● 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
● 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
● Programmable serial USART
● Master/slave SPI serial interface
● Byte-oriented 2-wire serial interface (Phillips 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