ATMEGA328 Microcontroller with arduino bootloded
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
ATMEGA328 Microcontroller with arduino bootloded
ATMEGA328 Microcontroller with arduino bootloded
ATMEGA328 Microcontroller with arduino bootloded

ATMEGA328 Microcontroller with arduino bootloded

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  • Product SKU: KG237
₹ 599 ₹ 1,299
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Arduino UNO uses an ATMEGA32-PU microcontroller and this controller comes pre-loaded with an Arduino UNO bootloader. Basically, a bootloader is a little piece of code that allows you to program the flash memory of the Arduino’s atmega328p via serial or USB instead of using an ICSP programmer. If you are making a project based on Arduino UNO & you have made a customized PCB then you will be requiring a bootloader Atmega328 microcontroller.

This is an ATmega328 in DIP package, pre-loaded with the Arduino (16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board. To get this chip working with Arduino IDE, you will need an external 16MHz crystal or resonator, a 5V supply, and a serial connection. You should select the Arduino UNO board within the Arduino IDE.


  • High Performance, Low Power Design
  • 8-Bit Microcontroller Atmel® AVR® advanced RISC architecture
  • 131 Instructions most of which are executed in a single clock cycle
  • Up to 20 MIPS throughput at 20 MHz
  • 32 x 8 working registers
  • 2 cycle multiplier

Memory Includes:

  • 32KB of programmable FLASH
  • 1KB of EEPROM
  • 2KB 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 bootloader with lock bits
  • In System Programming (ISP) by via bootloader
  • True Read-While-Write operation
  • Programming lock available for software security

I/O and Package:

  • 23 programmable I/O lines
  • 28 pin PDIP package

Speed Grades:

  • 0-4 MHz at 1.8-5.5V
  • 0-10 MHz at 2.7-5.5V
  • 0-20 MHz at 4.5-5.5V

Low power consumption mode at 1.8V, 1 MHz and 25°C:

  • Active Mode: 0.3 mA
  • Power-down Mode: 0.1 μA
  • Power-save Mode: 0.8 μA (Including 32 kHz RTC)

Technical Details

  • Minimum Supply Voltage (V) : 2.7
  • Maximum Supply Voltage (V) : 5.5
  • No. of I/Os : 23
  • No. of Timers/Counters : 3 Timer
  • Product Type : 8-bit Microcontrollers – MCU
  • Mounting Type : Through Hole
  • Product Series : ATmega328P
  • Maximum Clock Frequency (MHz) : 20
  • Data Bus Width : 8 bit
  • Interface Type : I2C, SPI, USART
  • Program Memory Size (kB) : 32
  • Data RAM size and Type : 2kB SRAM
  • Data ROM Size and Type : 1024 B EEPROM
  • Operating Temperature Range (°C) : -24 to 84

Physical Attributes

  • Length × Width × Height(mm) : 34.8 x 7.5 x 4.57
  • Weight (gm) : 3

Product Video


Customer Reviews

Based on 5 reviews
These are great, I'm glad I jumped into them

 I originally only programmed tiny microprocessors. I was inspired by 'Make: AVR Programming' by Elliot Williams to give the atmega328p a try. The chip worked great. The included sockets are a nice bonus.If you search instructables for cscientific, you should find one for building the programming board and one for building the prototype including source code for programming the atmega.

aryan shrma
Holders had broken pins. Great atmega. Will buy again

Holders had broken pins. Great atmega. Will buy again. Always have had issues with chips with pre loaded bootloader. These were flawless.

jahagir khan
Exactly as described

They're exactly what they say to be and appear to be genuine. If you're building your own PCB prototypes these socketed versions save so much time.

Good chips.

The price is good, parts are good. I’m not sure about boot loader. I use my IDE boot. I bought 2sets, all good.

R. Marks
Came with blink sketch

I assume this product works perfectly. I had a bad arduino Uno board and thought a chip was to blame, but it's something else.