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

                                                                                                    ATMEGA16U4-AU

                                                                                                    MCU-Application Specific 8BIT, MEGAAVR, 16MHz, 2.5 KB RAM/16 KB Program, 2.7V-5.5Vin, TQFP-44

                                                                                                    MICROCHIP
                                                                                                    Image is for illustrative purposes only. Please refer to product description.
                                                                                                    MICROCHIP ATMEGA16U4-AU
                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoATMEGA16U4-AU
                                                                                                    Newark Part No.68T2602
                                                                                                    Product RangeAVR ATmega Family ATmega16 Series Microcontrollers
                                                                                                    Your Part Number
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    See all Technical Docs
                                                                                                    Available to Order
                                                                                                    Manufacturer Standard Lead Time: 39 week(s)
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                                                                                                    Price shown includes applicable duties and tariffs
                                                                                                    QuantityPrice
                                                                                                    100+$4.410
                                                                                                    Price for:Each
                                                                                                    Minimum: 160
                                                                                                    Multiple: 160
                                                                                                    $705.60
                                                                                                    Line Note
                                                                                                    Added to your Order Confirmation, Invoice, and Dispatch note for this order only.

                                                                                                    Product Information

                                                                                                    MICROCHIP
                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoATMEGA16U4-AU
                                                                                                    Newark Part No.68T2602
                                                                                                    Product RangeAVR ATmega Family ATmega16 Series Microcontrollers
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    Product RangeAVR ATmega Family ATmega16 Series Microcontrollers
                                                                                                    Device CoremegaAVR
                                                                                                    MCU Core Size8bit
                                                                                                    Operating Frequency Max16MHz
                                                                                                    Program Memory Size16KB
                                                                                                    No. of Pins44Pins
                                                                                                    CPU Speed16MHz
                                                                                                    IC Case / PackageTQFP
                                                                                                    No. of I/O's26I/O's
                                                                                                    InterfacesI2C, SPI, UART, USART
                                                                                                    MCU Case StyleTQFP
                                                                                                    RAM Memory Size2.5KB
                                                                                                    ADC Channels12Channels
                                                                                                    Embedded Interface TypeI2C, SPI, UART, USART
                                                                                                    MCU ApplicationsUSB Microcontroller
                                                                                                    ADC Resolution10Bit
                                                                                                    Supply Voltage Min2.7V
                                                                                                    Supply Voltage Max5.5V
                                                                                                    MCU FamilyAVR ATmega
                                                                                                    Operating Temperature Min-40°C
                                                                                                    MCU SeriesATmega16
                                                                                                    Operating Temperature Max85°C
                                                                                                    IC MountingSurface Mount
                                                                                                    Qualification-
                                                                                                    MSLMSL 3 - 168 hours
                                                                                                    SVHCNo SVHC (04-Feb-2026)

                                                                                                    Product Overview

                                                                                                    The ATMEGA16U4-AU is a 8-bit low power high performance AVR RISC-based Microcontroller features16kB ISP flash memory, 8kB boot code section, 2.5kB SRAM, 1024B EEPROM, USB 2.0 full-speed/low speed device, high-speed PWMs, 12-channel 10-bit A/D-converter and JTAG interface for on-chip-debug. The device achieves up to 16 MIPS throughput at 16MHz, 2.7 to 5.5V operation. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, allowing you to optimize power consumption versus processing speed. 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.

                                                                                                    • Advanced RISC architecture - On-chip 2-cycle multiplier
                                                                                                    • Non-volatile program and data memories
                                                                                                    • JTAG (IEEE 1149.1 compliant) interface
                                                                                                    • USB 2.0 full-speed/low speed device module with interrupt on transfer completion
                                                                                                    • Peripheral features - Four 8-bit PWM channels
                                                                                                    • Power-on reset (POR) and programmable brown-out detection
                                                                                                    • Internal 8MHz calibrated oscillator
                                                                                                    • Internal clock prescaler and on-the-fly clock switching (Int RC/Ext Osc)
                                                                                                    • External and internal interrupt sources
                                                                                                    • Six sleep modes - Idle, ADC noise reduction, power-save, power-down, standby and extended standby
                                                                                                    • All I/O combine CMOS outputs and LVTTL inputs
                                                                                                    • 26 Programmable I/O lines
                                                                                                    • -40 to +85°C Industrial operating temperature range

                                                                                                    Applications

                                                                                                    Industrial, Computers & Computer Peripherals

                                                                                                    Technical Specifications

                                                                                                    Product Range

                                                                                                    AVR ATmega Family ATmega16 Series Microcontrollers

                                                                                                    MCU Core Size

                                                                                                    8bit

                                                                                                    Program Memory Size

                                                                                                    16KB

                                                                                                    CPU Speed

                                                                                                    16MHz

                                                                                                    No. of I/O's

                                                                                                    26I/O's

                                                                                                    MCU Case Style

                                                                                                    TQFP

                                                                                                    ADC Channels

                                                                                                    12Channels

                                                                                                    MCU Applications

                                                                                                    USB Microcontroller

                                                                                                    Supply Voltage Min

                                                                                                    2.7V

                                                                                                    MCU Family

                                                                                                    AVR ATmega

                                                                                                    MCU Series

                                                                                                    ATmega16

                                                                                                    IC Mounting

                                                                                                    Surface Mount

                                                                                                    MSL

                                                                                                    MSL 3 - 168 hours

                                                                                                    Device Core

                                                                                                    megaAVR

                                                                                                    Operating Frequency Max

                                                                                                    16MHz

                                                                                                    No. of Pins

                                                                                                    44Pins

                                                                                                    IC Case / Package

                                                                                                    TQFP

                                                                                                    Interfaces

                                                                                                    I2C, SPI, UART, USART

                                                                                                    RAM Memory Size

                                                                                                    2.5KB

                                                                                                    Embedded Interface Type

                                                                                                    I2C, SPI, UART, USART

                                                                                                    ADC Resolution

                                                                                                    10Bit

                                                                                                    Supply Voltage Max

                                                                                                    5.5V

                                                                                                    Operating Temperature Min

                                                                                                    -40°C

                                                                                                    Operating Temperature Max

                                                                                                    85°C

                                                                                                    Qualification

                                                                                                    -

                                                                                                    SVHC

                                                                                                    No SVHC (04-Feb-2026)

                                                                                                    Technical Docs (4)

                                                                                                    Technical Data Sheet EN

                                                                                                    CAD CadSoft_EAGLE EN

                                                                                                    Product Change Notice EN

                                                                                                    Technical Data Sheet EN

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                                                                                                    2 Products Found

                                                                                                    Legislation and Environmental

                                                                                                    US ECCN:EAR99
                                                                                                    EU ECCN:Unknown
                                                                                                    RoHS Compliant:Yes

                                                                                                    RoHS

                                                                                                    RoHS Phthalates Compliant:Yes

                                                                                                    RoHS

                                                                                                    SVHC:No SVHC (04-Feb-2026)
                                                                                                    Download Product Compliance Certificate

                                                                                                    Product Compliance Certificate

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