Microchip Technology ATMEGA328PB-AUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega, Functional Safety (FuSa)
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 27
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
EEPROM Size 1K x 8
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-TQFP (7x7)
Package / Case 32-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA328PB-AUR from Microchip Technology is an 8-bit AVR microcontroller. It provides 32KB flash and 2KB RAM at 20MHz. With a 1.8V to 5.5V supply range and a 32-TQFP package, it is a powerful upgrade for makers and industrial applications.

  • Enhanced AVR core: More peripherals than the classic ATmega328P.
  • Wide voltage range: 1.8V to 5.5V supports battery and USB power.
  • Large flash: 32KB accommodates complex sketches and firmware.
  • Compact package: TQFP-32 reduces board space for production.

Arduino-Compatible Prototypes

As an enhanced version of the popular ATmega328P, it supports existing shields and code.

3D Printer Controllers

With 32KB flash and PWM, it can manage stepper motors and heater controls.

Robotics Platforms

Multiple PWM channels and 20MHz speed enable servo and motor control.

Environmental Monitoring

Low voltage operation allows for solar or battery-powered data loggers.

Smart Agriculture

Robust I/O and wide voltage range suit irrigation controllers and sensor nodes.

Educational Kits

The TQFP package is suitable for surface-mount soldering practice and compact designs.

Q: What is the core architecture of the ATMEGA328PB?
A: It uses an 8-bit AVR core.
Q: What is the maximum clock speed?
A: It operates at up to 20MHz.
Q: How much flash and RAM does it have?
A: It has 32KB flash and 2KB RAM.
Q: What is the supply voltage range?
A: It runs from 1.8V to 5.5V.
Q: What package is this variant?
A: It is a 32-pin TQFP package.
Base Product Number : ATMEGA328PB
20MHz 8-bit Arduino ATmega328PB AVR maker Microchip robotics TQFP-32
Q: What is the core architecture of the ATMEGA328PB?
A: It uses an 8-bit AVR core.
Q: What is the maximum clock speed?
A: It operates at up to 20MHz.
Q: How much flash and RAM does it have?
A: It has 32KB flash and 2KB RAM.
Q: What is the supply voltage range?
A: It runs from 1.8V to 5.5V.
Q: What package is this variant?
A: It is a 32-pin TQFP package.