ATMEGA324A-MU ATMEGA324A-MU is an 8-bit AVR microcontroller from Microchip Technology with 32KB Flash memory, 2KB SRAM, 1KB EEPROM, and 32 I/O pins. It operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
Mfr Part #:

ATMEGA324A-MU

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATMEGA324A-MU is an 8-bit AVR microcontroller from Microchip Technology with 32KB Flash memory, 2KB SRAM, 1KB EEPROM, and 32 I/O pins. It operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
✓ Total Stock: 10,346 pcs

ATMEGA324A-MU Available from 2 distributors

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ATMEGA324A-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
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

ATMEGA324A-MU Description

Short technical summary and product information.

The ATMEGA324A-MU is an 8-bit AVR microcontroller based on the AVR enhanced RISC architecture, capable of up to 20 MIPS throughput at 20MHz. It features 32KB of in-system self-programmable Flash program memory, 2KB internal SRAM, and 1KB EEPROM. The device includes 32 I/O lines, with peripherals such as brown-out detect/reset, power-on reset, PWM channels, and watchdog timer. Connectivity options include I²C, SPI, and two USART interfaces. An 8-channel 10-bit analog-to-digital converter is integrated for sensor interfacing. The microcontroller operates over a supply voltage range of 1.8V to 5.5V and a temperature range of -40°C to 85°C. It is packaged in a 44-VFQFN exposed pad (44-VQFN 7x7) surface mount package, suitable for compact embedded designs. The device supports capacitive touch sensing via the Atmel QTouch library and includes JTAG interface for debugging and programming.

ATMEGA324A-MU Quick Information

Product Type: Microcontroller
Series: ATmega324A
Canonical Name: ATMEGA324A-MU
Subcategory: 8-bit Microcontroller

ATMEGA324A-MU Compliance

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

ATMEGA324A-MU Features

  • 8-bit AVR RISC architecture with 20 MIPS throughput.
  • 32KB Flash, 2KB SRAM, 1KB EEPROM memory.
  • 32 I/O lines with multiple serial interfaces.
  • Operates from 1.8V to 5.5V supply voltage.
  • Surface mount 44-VQFN package with exposed pad.

ATMEGA324A-MU Applications

  • Ideal for embedded control and automation systems.
  • Suitable for sensor interfacing and data logging.
  • Used in industrial and consumer electronics.
  • Supports capacitive touch sensing with QTouch library.

ATMEGA324A-MU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA324A-MU?

1.8V to 5.5V.

What package does the ATMEGA324A-MU come in?

44-VFQFN Exposed Pad (44-VQFN 7x7).

What is the operating temperature range?

-40°C to 85°C (TA).

Is the ATMEGA324A-MU RoHS compliant?

RoHS3 compliant (unverified).

What is the core processor?

AVR 8-bit.

What is the maximum clock speed?

20 MHz.

How much Flash memory does it have?

32KB.

ATMEGA324A-MU Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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ATMEGA324PA-MUR
ATMEGA324PA-MUR
Microchip Technology
The Microchip Technology ATMEGA324PA-MUR is an 8-bit AVR microcontroller featuring 32KB of Flash program memory and operating at up to 20MHz. It is supplied in a 44-VQFN package.
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