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

                                                                                                  ATMEGA128A-AUR

                                                                                                  8 Bit MCU, AVR ATmega Family ATmega1284A Series Microcontrollers, AVR, 16 MHz, 128 KB, 64 Pins

                                                                                                  Date/Lot Code

                                                                                                  MICROCHIP ATMEGA128A-AUR
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoATMEGA128A-AUR
                                                                                                  Newark Part No.42AC0640
                                                                                                  Product RangeAVR ATmega Family ATmega1284A Series Microcontrollers
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  1,099 In Stock

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                                                                                                  QuantityPrice
                                                                                                  1+$10.290
                                                                                                  10+$9.870
                                                                                                  25+$9.440
                                                                                                  50+$9.410
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  $10.29
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                                                                                                  This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                  Product Information

                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoATMEGA128A-AUR
                                                                                                  Newark Part No.42AC0640
                                                                                                  Product RangeAVR ATmega Family ATmega1284A Series Microcontrollers
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Product RangeAVR ATmega Family ATmega1284A Series Microcontrollers
                                                                                                  Device CoreAVR
                                                                                                  CPU Speed16MHz
                                                                                                  Operating Frequency Max16MHz
                                                                                                  Program Memory Size128KB
                                                                                                  No. of Pins64Pins
                                                                                                  MCU Case StyleTQFP
                                                                                                  IC Case / PackageTQFP
                                                                                                  No. of I/O's53I/O's
                                                                                                  InterfacesI2C, SPI, USART
                                                                                                  RAM Memory Size4KB
                                                                                                  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 SeriesATmega128
                                                                                                  Qualification-
                                                                                                  MSLMSL 3 - 168 hours
                                                                                                  SVHCNo SVHC (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  ATMEGA128A-AUR is an 8-bit AVR microcontroller. The high-performance, low-power microchip 8-bit AVR® RISC-based microcontroller combines 128Kb flash memory with read-while-write capabilities, 4Kb EEPROM, 4Kb SRAM, 53 general purpose I/O lines, 32 general purpose working registers, a real-time counter, four flexible timer/counters with compare modes and PWM, two USARTs, a byte-oriented two-wire serial interface, an 8-channel/10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE® 1149.1 compliant) test interface for accessing the on-chip debugging and programming, and six software selectable power saving modes. The device operates between 2.7 to 5.5 volts. By executing powerful instructions in a single clock cycle, this device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed.

                                                                                                  • 16MHz speed, power supply range from 2.7V to 5.5V
                                                                                                  • Fully static operation, upto 16MIPS throughput at 16MHz, on-chip 2-cycle multiplier
                                                                                                  • 128Kbytes of in-system self-programmable flash program memory, 4Kbytes EEPROM
                                                                                                  • In-system programming by on-chip boot program, true read-while-write operation
                                                                                                  • Programming lock for software security, SPI interface for in-system programming
                                                                                                  • Boundary-scan capabilities according to the JTAG standard, extensive on-chip debug support
                                                                                                  • Real time counter with separate oscillator, two 8-bit PWM channels
                                                                                                  • 6 PWM channels with programmable resolution from 2 to 16bits, output compare modulator
                                                                                                  • Programmable watchdog timer with on-chip oscillator, on-chip analog comparator
                                                                                                  • Operating industrial temperature range from -40°C to +85°C, 64-lead TQFP package

                                                                                                  Technical Specifications

                                                                                                  Product Range

                                                                                                  AVR ATmega Family ATmega1284A Series Microcontrollers

                                                                                                  CPU Speed

                                                                                                  16MHz

                                                                                                  Program Memory Size

                                                                                                  128KB

                                                                                                  MCU Case Style

                                                                                                  TQFP

                                                                                                  No. of I/O's

                                                                                                  53I/O's

                                                                                                  RAM Memory Size

                                                                                                  4KB

                                                                                                  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

                                                                                                  Operating Frequency Max

                                                                                                  16MHz

                                                                                                  No. of Pins

                                                                                                  64Pins

                                                                                                  IC Case / Package

                                                                                                  TQFP

                                                                                                  Interfaces

                                                                                                  I2C, SPI, USART

                                                                                                  ADC Channels

                                                                                                  8Channels

                                                                                                  Supply Voltage Min

                                                                                                  2.7V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  IC Mounting

                                                                                                  Surface Mount

                                                                                                  MCU Series

                                                                                                  ATmega128

                                                                                                  MSL

                                                                                                  MSL 3 - 168 hours

                                                                                                  Technical Docs (2)

                                                                                                  Technical Data Sheet EN

                                                                                                  Product Change Notice EN

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                                                                                                  Associated Products

                                                                                                  2 Products Found

                                                                                                  Legislation and Environmental

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

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

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

                                                                                                  Product Compliance Certificate

                                                                                                  Product traceability

                                                                                                  Date/Lot Code

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