ATmega328 with Arduino Optiboot (UNO)

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  • Part No :
  • ARD-1881
  • Availability:
  • Out of Stock
  • Shipping :
  • Same Day*
  • Weight:
  • 0.01Kg
  • Made By:
  • Atmel
  • Mfr.Part.No:
  • ARD-1881
  • Quality Rank:
  • 100/100
Rs 399
(Excluding GST.)
Rs 471
(Including GST)
471 New Out of Stock
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Description: The name says it all on this one. An ATmega328 in DIP package, pre-loaded with the Arduino Optiboot (Uno 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. If you are not comfortable doing this, we recommend purchasing the Arduino Uno board that has all of these built into the board.

Atmel's ATMega328 8-Bit Processor in 28 pin DIP package. It's like the ATmega168, with double the flash space. 32K of program space. 23 I/O lines, 6 of which are channels for the 10-bit ADC. Runs up to 20MHz with external crystal. Package can be  programmed in circuit. 1.8V to 5V operating voltage!

Note: This contains the bootloader used on the Arduino Uno, with small modifications to work more reliably with different serial connection options (mainly the FTDI).


  • High Performance, Low Power AVR 8-Bit Microcontroller
  • Advanced RISC Architecture
    • 131 Powerful Instructions – Most Single Clock Cycle Execution
    • 32 x 8 General Purpose Working Registers
    • Fully Static Operation
    • Up to 20 MIPS Throughput at 20 MHz
    • On-chip 2-cycle Multiplier
  • High Endurance Non-volatile Memory Segments
    • 32K Bytes of In-System Self-Programmable Flash program memory
    • 1K Bytes EEPROM
    • 2K Bytes Internal SRAM
    • Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
    • Data retention: 20 years at 85°C/100 years at 25°C
      • Optional Boot Code Section with Independent Lock Bits
      • In-System Programming by On-chip Boot Program
      • True Read-While-Write Operation 
    • Programming Lock for Software Security
  • Peripheral Features
    • Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
    • One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
    • Real Time Counter with Separate Oscillator
    • Six PWM Channels
    • 6-channel 10-bit ADC
    • Programmable Serial USART
    • Master/Slave SPI Serial Interface
    • Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
    • Programmable Watchdog Timer with Separate On-chip Oscillator
    • On-chip Analog Comparator
    • Interrupt and Wake-up on Pin Change
  • Special Microcontroller Features
    • Power-on Reset and Programmable Brown-out Detection
    • Internal Calibrated Oscillator
    • External and Internal Interrupt Sources
    • Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
  • Operating Voltage:
    • 1.8 - 5.5V
  • Temperature Range:
    • -40° C to 85° C

Package includes:

  • ATmega328 with Arduino Optiboot (Uno)


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You mean I don't hav

By Kaylyn from Rusg37Q5, gDmA7vXHRM on May 07, 2016
Great! Optiboot saves some real space.
2 of 4 people found this review helpful
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ATmega328 with Arduino Optiboot (UNO)