Mfr Part #:

ATMEGA649A-MU

Mfr Name: Atmel

The Atmel ATMEGA649A-MU is an 8-bit AVR microcontroller with 64KB Flash memory, 4KB SRAM, and 2KB EEPROM. It features 54 I/O pins, SPI/UART/USI connectivity, and operates from 1.8V to 5.5V.

✓ Total Stock: 6,980 pcs

ATMEGA649A-MU Available from 2 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	6,234 pcs On Request	6234 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	746 pcs On Request	746 pcs	On Request	1	On Request	On Request	0950+	On Request	On Request

ATMEGA649A-MU Description

Short technical summary and product information.

The Atmel ATMEGA649A-MU is an 8-bit AVR microcontroller based on the advanced RISC architecture. It delivers up to 16 MIPS throughput at 16 MHz with 130 instructions, most executed in a single clock cycle. The device includes 64KB of in-system self-programmable Flash, 4KB SRAM, and 2KB EEPROM with high endurance (10,000 Flash write/erase cycles, 100,000 EEPROM cycles).

It offers 54 general-purpose I/O lines, an 8-channel 10-bit ADC, two 8-bit and one 16-bit timer, 4 PWM channels, and a 4x25 segment LCD driver. Connectivity includes SPI, UART/USART, and USI interfaces. Additional peripherals include brown-out detection, power-on reset, watchdog timer, and programmable watchdog oscillator.

The microcontroller is housed in a 64-VFQFN exposed pad package (9x9 mm) for surface mount assembly. It operates over a supply voltage range of 1.8V to 5.5V and a temperature range of -40°C to 85°C. The device supports JTAG (IEEE 1149.1) for boundary scan and on-chip debug, as well as Atmel QTouch capacitive touch sensing.

ATMEGA649A-MU Quick Information

Product Type: Microcontroller

Canonical Name: Atmel ATMEGA649A-MU 8-bit AVR Microcontroller

Subcategory: Microcontrollers

ATMEGA649A-MU Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ATMEGA649A-MU Features

8-bit AVR core with 16 MIPS throughput.
64KB Flash and 4KB SRAM memory.
54 I/O pins with multiple interfaces.
Integrated 4x25 segment LCD driver.
Operating voltage range 1.8V to 5.5V.

ATMEGA649A-MU Applications

Ideal for LCD-based embedded systems.
Used in industrial control applications.
Suitable for battery-powered devices.
Applicable in sensor interface designs.

ATMEGA649A-MU FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the ATMEGA649A-MU?

The operating voltage range is 1.8V to 5.5V.

What package does the ATMEGA649A-MU come in?

It comes in a 64-VFQFN Exposed Pad package (64-QFN 9x9mm).

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

Is the ATMEGA649A-MU RoHS compliant?

It is listed as RoHS3 Compliant, but this status is unverified.

How much Flash memory does the ATMEGA649A-MU have?

It has 64KB of Flash program memory.

How many I/O pins are available?

There are 54 I/O pins.

Does the microcontroller include an ADC?

Yes, it has an 8-channel 10-bit ADC.

Category	Microcontrollers
Manufacturer Name	Atmel
Connectivity	SPI, UART/USART, USI
Core Processor	AVR
Core Size	8-Bit
Data Converters	A/D 8x10b
EEPROM Size	2K x 8
Mounting Type	Surface Mount
Number of I	54
Operating Temperature	-40°C ~ 85°C (TA)
Oscillator Type	Internal
Peripherals	Brown-out Detect/Reset, LCD, POR, PWM, WDT
Program Memory Size	64KB (32K x 16)
Program Memory Type	FLASH
RAM Size	4K x 8
Speed	16 MHz
Supplier Device Package	64-QFN (9x9)
Voltage	1.8V ~ 5.5V