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                                                                                                    1. Home
                                                                                                    2. Semiconductors - ICs
                                                                                                    3. Microcontrollers
                                                                                                    4. 8-bit Microcontrollers
                                                                                                    Print Page

                                                                                                    ATMEGA1281-16AU

                                                                                                    8 Bit MCU, AVR ATmega Family ATmega1281 Series Microcontrollers, AVR, 16 MHz, 128 KB, 64 Pins

                                                                                                    MICROCHIP ATMEGA1281-16AU
                                                                                                    Image is for illustrative purposes only. Please refer to product description.
                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoATMEGA1281-16AU
                                                                                                    Order Code1455092
                                                                                                    Product RangeAVR ATmega Family ATmega1281 Series Microcontrollers
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    See all Technical Docs
                                                                                                    483 In Stock

                                                                                                    90 more incoming. You can reserve stock now

                                                                                                    483 Delivery in 3-4 Business Days(UK stock)
                                                                                                    QuantityPrice
                                                                                                    1+HK$93.880
                                                                                                    25+HK$78.090
                                                                                                    100+HK$76.530
                                                                                                    Price for:Each
                                                                                                    Minimum: 1
                                                                                                    Multiple: 1
                                                                                                    HK$93.88
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                                                                                                    Product Information

                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoATMEGA1281-16AU
                                                                                                    Order Code1455092
                                                                                                    Product RangeAVR ATmega Family ATmega1281 Series Microcontrollers
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    Product RangeAVR ATmega Family ATmega1281 Series Microcontrollers
                                                                                                    Device CoreAVR
                                                                                                    Operating Frequency Max16MHz
                                                                                                    Program Memory Size128KB
                                                                                                    No. of Pins64Pins
                                                                                                    IC Case / PackageTQFP
                                                                                                    No. of I/O's54I/O's
                                                                                                    InterfacesI2C, SPI, UART
                                                                                                    RAM Memory Size8KB
                                                                                                    ADC Channels8Channels
                                                                                                    ADC Resolution10Bit
                                                                                                    Supply Voltage Min2.7V
                                                                                                    Supply Voltage Max5.5V
                                                                                                    Operating Temperature Min-40°C
                                                                                                    Operating Temperature Max85°C
                                                                                                    IC MountingSurface Mount
                                                                                                    MCU FamilyAVR ATmega
                                                                                                    MCU SeriesATmega256X
                                                                                                    Qualification-
                                                                                                    MSLMSL 1 - Unlimited
                                                                                                    SVHCNo SVHC (25-Jun-2025)

                                                                                                    Product Overview

                                                                                                    The ATMEGA1281-16AU is a 8-bit low-power CMOS Microcontroller Unit based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1MIPS per MHz allowing the system designed to optimize power consumption versus processing speed. It offers the QTouch® library for embedding capacitive touch buttons, sliders and wheels functionality into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys and includes Adjacent Key Suppression® (AKS®) technology for unambiguous detection of key events. The easy-to-use QTouch Suite toolchain allows you to explore, develop and debug your own touch applications. The 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.

                                                                                                    • Advanced RISC architecture
                                                                                                    • 32 x 8 General purpose working registers
                                                                                                    • Fully static operation
                                                                                                    • Up to 16MIPS throughout at 16MHz
                                                                                                    • On-chip 2-cycle multiplier
                                                                                                    • High endurance non-volatile memory segments
                                                                                                    • 4Kbytes EEPROM
                                                                                                    • 8kB Internal SRAM
                                                                                                    • Optional boot code section with independent lock bits
                                                                                                    • Programming lock for software security
                                                                                                    • Supplier’s original packaging: Tray

                                                                                                    Applications

                                                                                                    Automation & Process Control

                                                                                                    Technical Specifications

                                                                                                    Product Range

                                                                                                    AVR ATmega Family ATmega1281 Series Microcontrollers

                                                                                                    Operating Frequency Max

                                                                                                    16MHz

                                                                                                    No. of Pins

                                                                                                    64Pins

                                                                                                    No. of I/O's

                                                                                                    54I/O's

                                                                                                    RAM Memory Size

                                                                                                    8KB

                                                                                                    ADC Resolution

                                                                                                    10Bit

                                                                                                    Supply Voltage Max

                                                                                                    5.5V

                                                                                                    Operating Temperature Max

                                                                                                    85°C

                                                                                                    MCU Family

                                                                                                    AVR ATmega

                                                                                                    Qualification

                                                                                                    -

                                                                                                    SVHC

                                                                                                    No SVHC (25-Jun-2025)

                                                                                                    Device Core

                                                                                                    AVR

                                                                                                    Program Memory Size

                                                                                                    128KB

                                                                                                    IC Case / Package

                                                                                                    TQFP

                                                                                                    Interfaces

                                                                                                    I2C, SPI, UART

                                                                                                    ADC Channels

                                                                                                    8Channels

                                                                                                    Supply Voltage Min

                                                                                                    2.7V

                                                                                                    Operating Temperature Min

                                                                                                    -40°C

                                                                                                    IC Mounting

                                                                                                    Surface Mount

                                                                                                    MCU Series

                                                                                                    ATmega256X

                                                                                                    MSL

                                                                                                    MSL 1 - Unlimited

                                                                                                    Technical Docs (3)

                                                                                                    Product Change Notice EN

                                                                                                    CAD CadSoft_EAGLE EN

                                                                                                    Technical Data Sheet EN

                                                                                                    Associated Products

                                                                                                    2 Products Found

                                                                                                    Legislation and Environmental

                                                                                                    Country of Origin:
                                                                                                    Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                    United States
                                                                                                    Country in which last significant manufacturing process was carried out
                                                                                                    Tariff No:85423190
                                                                                                    US ECCN:EAR99
                                                                                                    EU ECCN:NLR
                                                                                                    RoHS Compliant:Yes

                                                                                                    RoHS

                                                                                                    RoHS Phthalates Compliant:Yes

                                                                                                    RoHS

                                                                                                    SVHC:No SVHC (25-Jun-2025)
                                                                                                    Download Product Compliance Certificate

                                                                                                    Product Compliance Certificate

                                                                                                    Weight (kg):.003089
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