ATMEGA328-PU 8-Bit Microcontroller - 20MHz Speed, 32KB Flash Memory, 28-Pin DIP Package

High-performance 8-bit AVR microcontroller with 20MHz operating speed and 32KB flash memory. Features wide 1.8V-5.5V voltage range, SPI/UART connectivity, and industrial temperature rating (-40°C to 85°C). Ideal for embedded control, automation, and instrumentation applications with ROHS compliance and professional technical support.

Operating Temperature -40°C ~ 85°C(TA)
Speed 20 MHZ
Place of Origin USA
Program Memory Type FLASH
Packaging Details 96pcs/tray
Number of I/O 32
Product Description
ATMEGA328-PU 8-Bit Microcontroller
Product Overview

The ATMEGA328-PU is a high-performance, low-power 8-bit AVR microcontroller based on the RISC architecture. This 28-pin DIP package device operates at 20MHz and features 32KB of flash memory, making it ideal for embedded control applications.

Technical Specifications
Manufacturer Microchip Technology
Series AVR® ATmega
Core Size 8-Bit
Operating Speed 20MHz
Program Memory Size 32KB (16K x 16)
Voltage Supply 1.8V ~ 5.5V
Operating Temperature -40°C ~ 85°C
Package Type 28-DIP (0.300", 7.62mm)
Connectivity IC, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Key Features
  • High-performance 8-bit AVR RISC architecture
  • 32KB flash program memory with 16-bit organization
  • 20MHz maximum operating frequency
  • Wide voltage range: 1.8V to 5.5V
  • Extended temperature range: -40°C to 85°C
  • Advanced peripherals including PWM, WDT, and brown-out detection
  • SPI and UART/USART communication interfaces
  • 28-pin DIP package for easy prototyping
Applications
  • Industrial automation systems
  • Embedded control applications
  • Instrumentation and measurement equipment
  • Consumer electronics
  • Automotive control systems
Functional Block Diagram
ATMEGA328-PU microcontroller functional block diagram showing internal architecture and peripheral connections
Technical Support

For detailed technical specifications and application support, contact our engineering team at [email protected]

Supplier Advantages
  • High Quality Products: 100% new and original components with ROHS compliance
  • Competitive Pricing: Optimized purchasing channels ensuring cost-effective solutions
  • Professional Service: Comprehensive quality testing and dedicated after-sales support
  • Adequate Inventory: Strong supply chain management with comprehensive stock availability
  • Fast Delivery: Shipment within 1-3 working days after payment confirmation
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