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ATMEGA328-PU Microcontroller

  • AVR 8 bit  RISC Architecture
  • 28-Pin PDIP package
  • upto 20 Mhz clock
  • 32 kB Flash memory
  • 2 kB SRAM
  • 1 kb EEPROM
  • 23 programmable I/O channels
  • 1.8 V to 5.5 V Operating Range
  • 10-bit six Channel ADC inputs
  • Timers: Two 8-bit / One 16-bit
  • six PWM outputs
  • 131 powerful instructions – Most Single Clock Cycle Execution

175.00 148.31+18% GST

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SKU 04BP001 Category

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ATmega328-PU  Microcontroller

The ATMEGA328- PU is a low-power CMOS 8-bit microcontroller(MCUs) that are high-performance RISC architecture-based devices that combine 32KB ISP Flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, serial programmable USART, and more. ( Click for wide range of  Semiconductor IC  ).
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The ATmega328 -PU AVR is supported with a full suite of program and system development tools including C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation Kits.

ATMEGA328- PU is a powerful microcontroller that provides a highly flexible and cost-effective solution to many embedded control applications. Arduino is an open-source development board that uses ATMEGA328- PU.



High Performance, Low Power Design:

8-Bit Microcontroller Atmel® AVR® advanced RISC architecture

  • 131 Powerful Instructions – Most Single Clock Cycle Execution
  • 32 x 8 General Purpose Working Registers
  • Up to 20 MIPS Throughput at 20MHz
  • On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory Segments:
  • 32KB of programmable FLASH
  • 1KB of EEPROM
  • 2KBytes Internal SRAM
  • 10,000 Write and Erase Cycles for Flash and 100,000 for EEPROM
  • Data retention for 20 years at 85°C and 100 years at 25°C
  • Optional Boot Code Section with Independent Lock Bits
  • In System Programming (ISP) by via Boot Program
  • True Read-While-Write operation
  • Programming Lock for Software Security
I/O and Package:
  • 23 programmable I/O lines
  • 28 pin PDIP package


Operating Voltage:
  • 1.8 – 5.5V
Low power consumption mode at 1 MHz, 1.8V, and 25°C:
  • Active Mode: 0.2 mA
  • Power-down Mode: 0.1 μA
  • Power-save Mode: 0.75 μA (Including 32 kHz RTC)


Pin Diagram:
ATMEGA328-PU Microcontroller

Package Includes:

1 x ATmega328P-PU PDIP-28 Microcontroller


Product Type:                                                  8-bit Microcontrollers – MCU

Package/Case:                                                 DIP-28

Operating Supply Voltage:                           1.8 V to 5.5 V

Number of I/Os:                                              23

Data Bus Width:                                              8bit

Maximum Clock Frequency:                        20 MHz

Program Memory Size:                                  32 kB

Data RAM Size:                                                2 kB

Data R0M Size:                                                 1 kB

ADC Resolution:                                              10 bit

Operating Temperature  Range :                -40ºC ~ +85°C

Interface Type:                                                I2C, SPI, USART


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