ATMEGA325A-MU ATMEGA325A-MU is an 8-bit AVR microcontroller from Microchip Technology with 32KB Flash memory, 2KB SRAM, 1KB EEPROM, and operates at up to 20MHz. It comes in a 64-QFN package with 54 I/O pins.
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ATMEGA325A-MU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATMEGA325A-MU is an 8-bit AVR microcontroller from Microchip Technology with 32KB Flash memory, 2KB SRAM, 1KB EEPROM, and operates at up to 20MHz. It comes in a 64-QFN package with 54 I/O pins.
✓ Total Stock: 7,200 pcs

ATMEGA325A-MU Available from 1 distributor

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ATMEGA325A-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
Watchdog Timer

ATMEGA325A-MU Description

Short technical summary and product information.

The ATMEGA325A-MU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. It features a RISC architecture with 130 instructions, most executing in a single clock cycle. The device offers 32KB of in-system self-programmable Flash, 2KB of SRAM, and 1KB of EEPROM, with high endurance (10,000 Flash/100,000 EEPROM write/erase cycles).

 

Operating at up to 20MHz, the microcontroller delivers up to 20 MIPS throughput. It supports a wide supply voltage range of 1.8V to 5.5V and an industrial temperature range of -40°C to 85°C. On-chip peripherals include two 8-bit and one 16-bit timer/counters, four PWM channels, an 8-channel 10-bit ADC, and a watchdog timer. Connectivity is provided through SPI, UART/USART, and USI interfaces, along with a JTAG interface for debugging and programming.

 

The ATMEGA325A-MU is housed in a 64-VFQFN exposed pad package (9x9mm), suitable for surface-mount assembly. It is ideal for embedded control applications requiring a balance of performance, memory, and low power consumption.

ATMEGA325A-MU Quick Information

Product Type: Microcontroller
Series: ATmega325A
Canonical Name: Microchip Technology ATMEGA325A-MU AVR 8-bit Microcontroller, 32KB Flash, 2KB RAM, 64-QFN
Subcategory: AVR Microcontrollers

ATMEGA325A-MU Compliance

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

ATMEGA325A-MU Features

  • 8-bit AVR RISC core architecture.
  • Up to 20MHz clock frequency.
  • 32KB Flash, 2KB SRAM, 1KB EEPROM.
  • 54 I/O pins with SPI, UART, USART.
  • Integrated 10-bit ADC with 8 channels.

ATMEGA325A-MU Applications

  • Industrial control and automation systems.
  • Embedded sensor data acquisition.
  • Automotive control modules.
  • Consumer electronics user interfaces.
  • IoT edge devices requiring low power.

ATMEGA325A-MU FAQs

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

1.8V to 5.5V.

What is the package type?

64-VFQFN Exposed Pad (also known as 64-QFN 9x9mm).

What is the operating temperature range?

-40°C to 85°C.

Is the ATMEGA325A-MU RoHS compliant?

Yes, it is RoHS3 compliant.

What is the maximum clock frequency?

20MHz.

How much flash memory does it have?

32KB (16K x 16).

How many I/O pins are available?

54.

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