• RS Stock No. 922-2142P
  • Brand Microchip
  • Mfr. Part No. ATMEGA328P-PU
Microchip ATMEGA328P-PU, 8bit AVR CPU Microcontroller, 20MHz, 32 kB Flash, 28-Pin PDIP
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

Not what you’re looking for? Select the attributes you require, then click the button below
Family NameATmega
Package TypePDIP
Mounting TypeThrough Hole
Pin Count28
Device CoreAVR CPU
Data Bus Width8bit
Program Memory Size32 kB
Maximum Frequency20MHz
RAM Size2 kB
Number of PWM Units1
ADC Channels6
Typical Operating Supply Voltage1.8 → 5.5 V
Minimum Operating Temperature-40 °C
Timers1 (1 x 16 bit), 2 (1 x 8 bit)
Timer Resolution8 bit, 16 bit
ADC Resolution10bit
Number of Timers3
Number of ADC Units1
ADCs1 (6 x 10 bit)
Program Memory TypeFlash
Pulse Width Modulation1 (6 x 8 bit)
Dimensions34.79 x 7.49 x 4.07mm
Maximum Operating Temperature+85 °C
Instruction Set ArchitectureRISC
PWM Resolution8bit
PWM Channels6
Select all
Customer reviews

Add a review - Log In

Discontinued product
Microchip Technology ATMEGA328P-PU, 8bit AVR Microcontroller, 20MHz, 32 kB Flash, 28-Pin PDIP
Compare alternative
Packaging Options:
What is Production Packaging?
Components are supplied in the original manufacturer's packaging, ready for insertion into your machinery. Allowing you to reduce waste and improve production efficiency.
Technical Reference
  • RS Components

    Statement of conformity

    The product detailed below complies with the specifications published by RS Components. Where applicable it provides assurance that electrostatic discharge sensitive devices have been handled and packed under conditions that meet the administrative and technical requirements of the ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 Electrostatic Control Standards.
    RS Stock No. 922-2142P
    Description Microchip ATMEGA328P-PU, 8bit AVR CPU Microcontroller, 20MHz, 32 kB Flash, 28-Pin PDIP
    Manufacturer/Brand: Microchip
    Mfr. Part No. ATMEGA328P-PU
    The foregoing information relates to product sold on, or after, the date shown below.
    Date Dec 18, 2017
    RS Components Ltd, Birchington Road, Corby, Northamptonshire, NN17 9RS, UK
Similar Products
View Similar Products

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

Frequently Asked Questions
Need some help?
Call our Customer Services team on:
08457 201201