Microchip Technology ATMEGA328PB-MNR

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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 ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-VFQFN (5x5)
Package / Case 32-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA328PB-MNR is an extended-temperature 8-bit AVR MCU from Microchip. Operating from 1.8V to 5.5V at 20MHz, it provides 32KB flash and 2KB SRAM in a 32-VFQFN package. Designed for demanding automotive and industrial environments.

  • Extended temperature range (-40°C to 105°C) for harsh environments.
  • 20MHz speed with 32KB flash for complex applications.
  • Compact VFQFN with exposed pad for better heat dissipation.
  • Low-voltage operation (1.8V) for energy-efficient designs.

Automotive ECU

105°C rating and 20MHz performance handle engine bay conditions.

Industrial Robotics

VFQFN package with exposed pad improves thermal dissipation.

Solar Inverters

Wide voltage range and robust I/O manage power conversion.

Smart Grid Meters

Extended temperature ensures accuracy in outdoor enclosures.

Avionics Sensors

High-reliability operation in harsh vibration environments.

Battery Management

Low 1.8V operation and 32KB flash support complex SOC algorithms.

Q: What is the temperature range?
A: -40°C to 105°C.
Q: What is the supply voltage?
A: 1.8V to 5.5V.
Q: What is the max speed?
A: 20MHz.
Q: How much flash?
A: 32KB.
Q: What package?
A: 32-VFQFN.
Base Product Number : ATMEGA328PB
20MHz 32KB Flash 8-bit MCU Automotive AVR Extended Temp Industrial Microchip VFQFN-32
Q: What is the temperature range?
A: -40°C to 105°C.
Q: What is the supply voltage?
A: 1.8V to 5.5V.
Q: What is the max speed?
A: 20MHz.
Q: How much flash?
A: 32KB.
Q: What package?
A: 32-VFQFN.