ATMEGA328-AU The ATMEGA328-AU is an 8-bit AVR microcontroller from Atmel with 32KB Flash memory, 2KB SRAM, and 1KB EEPROM. It operates at up to 20 MHz and features 23 I/O lines in a 32-TQFP package.
Mfr Part #:

ATMEGA328-AU

Available from 1 distributors
Mfr Name: Atmel
Atmel
The ATMEGA328-AU is an 8-bit AVR microcontroller from Atmel with 32KB Flash memory, 2KB SRAM, and 1KB EEPROM. It operates at up to 20 MHz and features 23 I/O lines in a 32-TQFP package.
✓ Total Stock: 19,441 pcs

ATMEGA328-AU Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
19,441 pcs
19441 pcs On Request 1 On Request On Request On Request On Request On Request

ATMEGA328-AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

ATMEGA328-AU Description

Short technical summary and product information.

The ATMEGA328-AU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology (formerly Atmel). It features 32KB of in-system self-programmable Flash memory, 2KB of internal SRAM, and 1KB of EEPROM with high endurance (10,000 write/erase cycles for Flash, 100,000 for EEPROM).

 

The device operates over a voltage range of 1.8V to 5.5V and supports clock speeds up to 20 MHz, delivering up to 20 MIPS throughput. It includes 23 general-purpose I/O lines, an 8-channel 10-bit ADC, two 8-bit and one 16-bit timer/counters, six PWM channels, and serial communication interfaces (I2C, SPI, UART/USART).

 

This microcontroller is housed in a 32-TQFP (7x7mm) surface-mount package and is specified for an operating temperature range of -40°C to +85°C. It supports six sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) for optimized power consumption, with typical power-down current as low as 0.1 µA.

ATMEGA328-AU Quick Information

Product Type: Microcontroller
Series: AVR
Canonical Name: ATmega328-AU 8-bit AVR Microcontroller
Subcategory: 8-bit

ATMEGA328-AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATMEGA328-AU Features

  • 8-bit AVR core with up to 20 MIPS throughput.
  • 32KB Flash, 2KB SRAM, 1KB EEPROM memory.
  • 23 I/O lines with 8-channel 10-bit ADC.
  • Operates from 1.8V to 5.5V supply voltage.
  • Surface-mount 32-TQFP (7x7mm) package.

ATMEGA328-AU Applications

  • Ideal for embedded control and automation systems.
  • Suitable for sensor interfacing and data acquisition.
  • Used in IoT edge nodes and low-power devices.
  • Applicable in motor control and PWM applications.

ATMEGA328-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA328-AU?

The operating voltage range is 1.8V to 5.5V.

What is the maximum clock frequency of the ATMEGA328-AU?

The maximum clock frequency is 20 MHz at 4.5V-5.5V, 10 MHz at 2.7V-5.5V, and 4 MHz at 1.8V-5.5V.

What is the operating temperature range of the ATMEGA328-AU?

The operating temperature range is -40°C to +85°C.

What package does the ATMEGA328-AU come in?

It comes in a 32-TQFP (7x7mm) surface-mount package.

How much Flash memory does the ATMEGA328-AU have?

It has 32KB of Flash program memory.

How many I/O pins does the ATMEGA328-AU have?

It has 23 I/O pins.

What serial communication interfaces does the ATMEGA328-AU support?

It supports I2C, SPI, and UART/USART.

Home
Account

Categories