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ATMEGA128A-MU ATMEGA128A-MU is a low-power 8-bit AVR microcontroller from Microchip Technology with 128KB in-system self-programmable flash memory. It delivers up to 16 MIPS throughput at 16MHz and includes 4KB SRAM, 4KB EEPROM, and 53 I/O pins in a 64-QFN package.
Mfr Part #:

ATMEGA128A-MU

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATMEGA128A-MU is a low-power 8-bit AVR microcontroller from Microchip Technology with 128KB in-system self-programmable flash memory. It delivers up to 16 MIPS throughput at 16MHz and includes 4KB SRAM, 4KB EEPROM, and 53 I/O pins in a 64-QFN package.
✓ Total Stock: 82,333 pcs

ATMEGA128A-MU Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Braun Electronic Components ✓
Non-Authorised Inventory information
50,000 pcs
On Request
50000 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
30,000 pcs
On Request
30000 pcs On Request 1 On Request On Request 2017 On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,333 pcs
On Request
2333 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

ATMEGA128A-MU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Lead Style
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATMEGA128A-MU Description

Short technical summary and product information.

The ATMEGA128A-MU is an 8-bit AVR microcontroller from Microchip Technology built on the AVR enhanced RISC architecture. It executes powerful instructions in a single clock cycle, achieving throughputs up to 16 MIPS at 16MHz while operating from a 2.7V to 5.5V supply.

 

The device provides 128KB of in-system self-programmable flash memory, 4KB SRAM, and 4KB EEPROM. It includes two 8-bit timer/counters, two expanded 16-bit timer/counters, a real-time counter, and peripheral features such as brown-out detection, power-on reset, PWM, and watchdog timer.

 

For communication, the microcontroller supports EBI/EMI, I2C, SPI, and UART/USART interfaces. It offers 53 I/O lines and an 8-channel 10-bit A/D converter. The ATmega128A also supports JTAG for debugging and in-system programming, and is compatible with Atmel QTouch library for capacitive touch sensing.

 

The part is supplied in a 64-VFQFN exposed pad package (64-QFN, 9x9) and operates over a temperature range of -40°C to +85°C, making it suitable for extended industrial environments.

ATMEGA128A-MU Quick Information

Product Type: Microcontroller
Series: ATmega128A
Canonical Name: Microchip Technology ATMEGA128A-MU 8-bit AVR Microcontroller
Subcategory: 8-Bit Microcontroller (MCU)

ATMEGA128A-MU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATMEGA128A-MU Features

  • Provides 8-bit AVR core at 16MHz.
  • Includes 128KB self-programmable flash memory.
  • Offers 4KB SRAM and 4KB EEPROM.
  • Supports 53 I/O lines with serial interfaces.
  • Operates from 2.7V to 5.5V supply.

ATMEGA128A-MU Applications

  • Suitable for industrial control applications.
  • Used in embedded motor control systems.
  • Enables sensor acquisition with analog inputs.
  • Supports serial communication with multiple protocols.
  • Ideal for battery-powered portable devices.

ATMEGA128A-MU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA128A-MU?

The operating voltage range is 2.7V to 5.5V.

What is the operating temperature range?

-40°C to +85°C (TA).

What package is the ATMEGA128A-MU available in?

64-VFQFN exposed pad, surface mount, supplier device package 64-QFN (9x9mm).

Is the ATMEGA128A-MU RoHS compliant?

RoHS3 compliant (unverified).

What is the processor core and speed?

AVR 8-bit core operating at up to 16MHz.

How much memory does the ATMEGA128A-MU have?

128KB flash, 4KB SRAM, and 4KB EEPROM.

How many I/O pins are available?

53 I/O pins.

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