Microchip, 8 bit AVR, ATmega Microcontroller, 20 MHz, 32kB FLASH, 32-Pin TQFP

ATmega328 8-Bit megaAVR Microcontrollers

The Atmel ATmega328 Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle the ATmega328 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.

Microcontroller Features

• 20 MHz Max. Operating Frequency
• Up to 20 MIPS at 20 MHz
• 32 KB Flash
• 1024 B EEPROM
• 2 KB SRAM
• 131 Instructions – Most single clock cycle execution
• 32 General Purpose Registers
• 23 GPIO
• Power-on Reset and Programmable Brown-out Detection
• Internal Calibrated Oscillator
• External and Internal Interrupt Sources
• Five Power-Saving Sleep Modes
• Internal and External Interrupts
• Fully Static Operation

Peripheral Features

• 10-bit 15 ksps Analogue-to-Digital Converter (ADC) – 8 or 6 channels
• Capacitive Touch Sense – 16 channels
• Temperature Sensor
• Two 8-bit Timers
• One 16-bit Timer
• Output Compare Module – 6 channels
• Six PWM Channels
• Programmable Serial USART
• Master/Slave SPI Serial Interface
• Byte-oriented 2-wire Serial Interface – I2C compatible
• Programmable Watchdog Timer with Separate Oscillator
• Analogue Comparator
• Interrupt and Wake-up on Pin Change