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ATMEGA328PB-AU 8-bit AVR microcontroller with 32KB Flash, 2KB RAM, and 1KB EEPROM. Operates at up to 20MHz with 27 I/O lines in a 32-TQFP package.
Mfr Part #:

ATMEGA328PB-AU

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
8-bit AVR microcontroller with 32KB Flash, 2KB RAM, and 1KB EEPROM. Operates at up to 20MHz with 27 I/O lines in a 32-TQFP package.
✓ Total Stock: 41,465 pcs

ATMEGA328PB-AU Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
27,815 pcs
On Request
27815 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
13,400 pcs
On Request
13400 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
250 pcs
On Request
250 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

ATMEGA328PB-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
SVHC Present
Speed
Supplier Device Package
Voltage
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ATMEGA328PB-AU Description

Short technical summary and product information.

The ATMEGA328PB-AU is an 8-bit AVR microcontroller from Microchip Technology featuring a high-performance RISC architecture. It provides 32KB of Flash program memory, 2KB of SRAM, and 1KB of EEPROM, operating at a maximum clock frequency of 20MHz. The device includes 27 general-purpose I/O lines and supports serial communication via I²C, SPI, and UART/USART interfaces.

 

Integrated peripherals include an 8-channel 10-bit ADC, PWM channels, brown-out detection, power-on reset, and a watchdog timer. The microcontroller operates over a supply voltage range of 1.8V to 5.5V, with a recommended range of 4.5V to 5.5V for full performance. It is designed for industrial temperature ranges from -40°C to 85°C.

 

The device is housed in a 32-lead TQFP package with a 7x7mm body and is surface-mountable. It is RoHS3 compliant and lead-free. The ATMEGA328PB-AU is suitable for a wide range of embedded control applications requiring moderate processing power and low power consumption.

ATMEGA328PB-AU Quick Information

Product Type: Microcontroller
Series: ATmega
Canonical Name: Microchip Technology ATMEGA328PB-AU 8-bit AVR Microcontroller
Subcategory: 8-bit Microcontroller

ATMEGA328PB-AU Compliance

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

ATMEGA328PB-AU Features

  • 8-bit AVR RISC core with 20MHz max speed.
  • 32KB Flash, 2KB SRAM, and 1KB EEPROM memory.
  • 27 I/O lines with 8-channel 10-bit ADC.
  • Supports I²C, SPI, and UART/USART interfaces.
  • Industrial temperature range -40°C to 85°C.

ATMEGA328PB-AU Applications

  • Embedded control systems and automation.
  • Sensor interfacing and data acquisition.
  • Industrial motor control and monitoring.
  • Consumer electronics and IoT devices.

ATMEGA328PB-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA328PB-AU?

The operating voltage range is 1.8V to 5.5V, with a recommended range of 4.5V to 5.5V.

What package does the ATMEGA328PB-AU come in?

32-lead TQFP package with 7x7mm body, surface mount.

What is the operating temperature range?

-40°C to 85°C (industrial grade).

Is the ATMEGA328PB-AU RoHS compliant?

Yes, it is RoHS3 compliant and lead-free.

What is the maximum clock frequency?

20MHz.

How much Flash memory does it have?

32KB (16K x 16) Flash program memory.

What communication interfaces are supported?

I²C, SPI, and UART/USART.

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