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ATMEGA32A-AU 8-bit AVR microcontroller with 32KB Flash, 2KB SRAM, 1KB EEPROM, 32 I/O lines, and integrated peripherals. Supplied in a 44-TQFP package.
Mfr Part #:

ATMEGA32A-AU

Available from 3 distributors
Mfr Name: Atmel
Atmel
8-bit AVR microcontroller with 32KB Flash, 2KB SRAM, 1KB EEPROM, 32 I/O lines, and integrated peripherals. Supplied in a 44-TQFP package.
✓ Total Stock: 32,497 pcs

ATMEGA32A-AU Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
27,815 pcs
On Request
27815 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
4,600 pcs
On Request
4600 pcs On Request 1 On Request On Request 14+ On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
82 pcs
On Request
82 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.

ATMEGA32A-AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
SVHC Present
Speed
Supplier Device Package
Voltage
Watchdog Timer
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ATMEGA32A-AU Description

Short technical summary and product information.

The ATMEGA32A-AU is an 8-bit AVR microcontroller from Microchip (formerly Atmel) featuring a high-performance RISC architecture. It provides 32KB of in-system self-programmable Flash memory, 2KB SRAM, and 1KB EEPROM with high endurance (10,000 write/erase cycles for Flash, 100,000 for EEPROM). The device operates at a maximum speed of 16 MHz, delivering up to 16 MIPS throughput.

 

This microcontroller includes 32 general-purpose I/O lines, an 8-channel 10-bit ADC, four PWM channels, three timers (two 8-bit, one 16-bit), and serial communication interfaces (I²C, SPI, UART/USART). Integrated peripherals such as brown-out detection, power-on reset, and a watchdog timer with separate oscillator enhance system reliability.

 

Designed for surface-mount assembly, the ATMEGA32A-AU is housed in a 44-pin TQFP package (10x10 mm). It operates over a supply voltage range of 2.7V to 5.5V and an industrial temperature range of -40°C to +85°C. Power consumption is typically 0.6 mA in active mode at 1 MHz, 3V, and less than 1 µA in power-down mode.

ATMEGA32A-AU Quick Information

Product Type: Microcontroller
Series: ATmega32A
Canonical Name: ATmega32A 8-bit AVR Microcontroller
Subcategory: AVR

ATMEGA32A-AU Compliance

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

ATMEGA32A-AU Features

  • 8-bit AVR core with 16 MIPS throughput.
  • 32KB Flash, 2KB SRAM, 1KB EEPROM on-chip.
  • 32 I/O lines with 8-channel 10-bit ADC.
  • Operates from 2.7V to 5.5V, -40 to 85°C.
  • Low power: 0.6 mA active, <1 µA power-down.

ATMEGA32A-AU Applications

  • Used in industrial control and automation systems.
  • Suitable for embedded sensor and data acquisition.
  • Powers IoT edge nodes and smart devices.
  • Handles motor control with integrated PWM.
  • Applied in automotive body electronics modules.

ATMEGA32A-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA32A-AU?

The operating voltage range is 2.7V to 5.5V.

What package does the ATMEGA32A-AU come in?

It is supplied in a 44-pin TQFP package (10x10 mm).

What is the operating temperature range?

The operating temperature range is -40°C to +85°C (industrial temperature range).

Is the ATMEGA32A-AU RoHS compliant?

The part is listed as RoHS compliant on the manufacturer page, but this has not been independently verified with a certificate.

How much Flash and SRAM does the ATMEGA32A-AU have?

It has 32 KB of Flash program memory and 2 KB of internal SRAM.

What serial interfaces are available on the ATMEGA32A-AU?

It supports I²C, SPI, and UART/USART serial interfaces.

How many ADC channels and what resolution is integrated?

It features an 8-channel, 10-bit analog-to-digital converter (ADC).

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