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Microchip ATMEGA32M1-AU

16MHz AVR ATmega microcontroller with 32KB flash and 2KB RAM

ISO14001 ISO9001 DUNS

Brands: Microchip

Mfr.Part #: ATMEGA32M1-AU

Datasheet: ATMEGA32M1-AU Datasheet (PDF)

Package/Case: TQFP-32

Product Type: Microcontrollers

RoHS Status:

Stock Condition: 2,425 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

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ATMEGA32M1-AU General Description

The ATMEGA32M1-AU is part of the AVR ATmega Family, specifically the ATmega32 Series Microcontrollers. It features a CPU Speed of 16MHz, making it a powerful and efficient option for various applications. With a Program Memory Size of 32KB and a RAM Memory Size of 2KB, this microcontroller offers ample storage and processing capabilities. The TQFP-32 MCU Case Style provides a compact and versatile design, while the 32 pins offer flexibility for connecting to external components. The ATMEGA32M1-AU also boasts 2 I/Os, allowing for easy integration with other devices and peripherals



  • 8-bit AVR microcontroller
  • 32KB flash memory, 2KB SRAM
  • 8-channel 10-bit ADC
  • 32 MHz max CPU clock frequency
  • UART, SPI, and I2C communication interfaces
  • Multiple timer/counters
  • Integrates watchdog timer and brown-out detector


  • Vehicle navigation systems
  • Factory automation control
  • Smart home devices
Microchip Inventory


Parameter Value Parameter Value
Product Category 8-bit Microcontrollers - MCU RoHS Details
Core AVR Program Memory Size 32 kB
Data RAM Size 2 kB Package / Case TQFP-32
Maximum Clock Frequency 16 MHz ADC Resolution 10 bit
Number of I/Os 27 I/O Supply Voltage - Min 2.7 V
Supply Voltage - Max 5.5 V Mounting Style SMD/SMT
Data Bus Width 8 bit Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Series ATmega32M1
Brand Microchip Technology Height 0.88 mm
Interface Type SPI Length 5 mm
Moisture Sensitive Yes Number of ADC Channels 11 Channel
Number of Timers/Counters 2 Timer Processor Series megaAVR
Product MCUs Product Type 8-bit Microcontrollers - MCU
Program Memory Type Flash Factory Pack Quantity 250
Subcategory Microcontrollers - MCU Tradename AVR
Width 5 mm


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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Equivalent Parts

For the ATMEGA32M1-AU component, you may consider these replacement and alternative parts:

Part Number




Part Number :   ATMEGA32M1-AU

Brands :  

Package :   TQFP-32

Description :   There are no directly equivalent parts to ATMEGA32M1-AU as it is a specific microcontroller from Atmel (now part of Microchip Technology) with its own unique features and capabilities. However, there are other microcontrollers available from Atmel and other manufacturers that offer similar functionality and can be used as alternatives depending on the specific application requirements. Some examples include:

Part Number :   ATMEGA32U4

Brands :  

Package :   QFN-44

Description :   ATMEGA32U4 from Atmel: Another AVR-based microcontroller with similar features and peripherals.

Part Number :   STM32F103

Brands :  

Package :  

Description :   STM32F103 from STMicroelectronics: An ARM Cortex-M3 based microcontroller with similar features and peripherals.

Part points

  • The ATMEGA32M1-AU chip is a microcontroller unit (mcu) developed by microchip technology. it belongs to the atmega series and is based on the avr® architecture. the chip offers 32kb flash memory, 2kb sram, and various peripherals, making it suitable for low-power applications like motor control, industrial automation, and home appliances. it supports multiple communication interfaces, analog-to-digital conversion, and offers high-performance execution with low power consumption.
  • Equivalent

    Some equivalent products of the ATMEGA32M1-AU chip are atmega32m1-cur, atmega32m1-mu, and atmega32m1-mur.
  • Features

    The ATMEGA32M1-AU is a microcontroller with 32kb flash memory, 2kb sram, and 1kb eeprom. its features include 32 general-purpose i/o pins, 10-bit adc with 10 channels, usart, spi, and i²c communication interfaces, and 16mhz operating speed. additionally, it has built-in watchdog, brown-out, and high-voltage programming support.
  • Pinout

    The ATMEGA32M1-AU microcontroller has a pin count of 44. it is a low-power 8-bit microcontroller primarily used in automotive applications. it offers multiple i/o lines, analog channels, and communication interfaces such as usart, spi, and twi/i2c to support a variety of functions in automotive systems.
  • Manufacturer

    The manufacturer of the ATMEGA32M1-AU microcontroller is microchip technology inc. microchip is an american semiconductor company that specializes in the design and manufacture of microcontrollers, mixed-signal, analog, and flash-ip integrated circuits. they provide products and technologies to various industries, including automotive, industrial, consumer electronics, and more.
  • Application Field

    The ATMEGA32M1-AU is commonly used in various applications like industrial controls, remote control systems, home automation, smart grid systems, and security systems. it can also be used in automotive electronics, motor control, and other embedded systems where low power consumption and high performance are required.
  • Package

    The ATMEGA32M1-AU chip is available in a tqfp package type, with a 44 pin count and a dimension of 10mm x 10mm.

Datasheet PDF

Preliminary Specification ATMEGA32M1-AU PDF Download

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