Microchip ATMEGA328P-PU, 8bit AVR Microcontroller, 20MHz, 1 kB, 32 kB Flash, 28-Pin PDIP

  • RS stock no. 696-2260
  • Mfr. Part No. ATMEGA328P-PU
  • Manufacturer Atmel
Technical data sheets
Legislation and Compliance
Product Details

ATmega328P 8-Bit megaAVR picoPower Microcontrollers

The Atmel ATmega328P Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. Featured is picoPower technology that offers ultra-low power consumption and low-power sleep modes, ideal for battery powered applications.

Microcontroller Features

•20 MHz Max. Operating Frequency
•Up to 20 MIPS at 20 MHz
•32 KB Flash
•1024 B EEPROM
•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
•Six 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

Attribute Value
Family Name ATmega
Package Type PDIP
Mounting Type Through Hole
Pin Count 28
Device Core AVR
Data Bus Width 8bit
Program Memory Size 1 kB, 32 kB
Maximum Frequency 20MHz
RAM Size 2 kB
Number of PWM Units 3
ADC Channels 6
Number of SPI Channels 1
Typical Operating Supply Voltage 1.8 → 5.5 V
Width 6.76mm
ADCs 6 x 10 bit
Number of USART Channels 1
Number of ADC Units 1
Minimum Operating Temperature -40 °C
Number of Timers 3
Maximum Operating Temperature +85 °C
Height 3.28mm
Number of I2C Channels 1
PWM Channels 6
ADC Resolution 10bit
Timer Resolution 8 bit, 16 bit
Timers 1 x 16 bit, 2 x 8 bit
Dimensions 37.4 x 6.76 x 3.28mm
Length 37.4mm
Pulse Width Modulation 2(6 x 8 bit), 6 x 16 bit
Instruction Set Architecture RISC
PWM Resolution 8 bit, 16 bit
Program Memory Type Flash
Discontinued product