Microchip Technology ATMEGA324PA-MUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
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 32
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 44-VQFN (7x7)
Package / Case 44-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA324PA-MUR from Microchip Technology is a high-performance 8-bit AVR microcontroller in a 44-VFQFN package. It operates from 1.8V to 5.5V at speeds up to 20MHz, offering 32KB Flash and 2K RAM for data-intensive applications. Integrated features like Brown-out Detect, POR, PWM, and WDT make it a robust choice for industrial, medical, and IoT systems requiring reliable operation in harsh environments.

  • Large 32KB Flash – accommodates complex firmware without external memory.
  • Exposed pad package – improves heat dissipation for sustained loads.
  • Wide voltage range – flexible for battery or line-powered designs.
  • AVR efficiency – executes most instructions in one clock cycle, maximizing throughput.

Advanced Robotics Controllers

32KB Flash and 2K RAM support complex kinematics and sensor fusion algorithms at 20MHz.

Industrial Automation HMI

Multiple PWM channels drive indicator LEDs and small motors in operator panels.

Smart Agriculture Monitors

Low 1.8V operation enables solar-powered soil sensors with long deployment life.

Medical Device Peripherals

Reliable POR and WDT ensure infusion pumps or ventilators maintain safety protocols.

Networking Gateways

AVR core with 5.5V tolerance interfaces easily with legacy serial protocols.

Data Logging Systems

Large memory capacity stores calibration data and event logs without external EEPROM.

Q: What is the core architecture?
A: AVR 8-bit, providing efficient C-code execution.
Q: What is the maximum clock speed?
A: 20MHz, balancing power and processing capability.
Q: How much program memory is included?
A: 32KB (16K x 16) Flash, suitable for complex applications.
Q: What package is offered?
A: 44-VFQFN exposed pad, ideal for thermal dissipation in compact designs.
Base Product Number : ATMEGA324PA
20MHz 32KB Flash 8-bit MCU AVR industrial medical PWM robotics VFQFN-44 WDT
Q: What is the core architecture?
A: AVR 8-bit, providing efficient C-code execution.
Q: What is the maximum clock speed?
A: 20MHz, balancing power and processing capability.
Q: How much program memory is included?
A: 32KB (16K x 16) Flash, suitable for complex applications.
Q: What package is offered?
A: 44-VFQFN exposed pad, ideal for thermal dissipation in compact designs.