ATMEGA649A-MU

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ATMEGA649A-MU

IC MCU 8BIT 64KB FLASH 64QFN

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Specifications

Supplier Microchip Technology
Package Tray
Series AVR® ATmega
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 16MHz
Connectivity SPI, UART/USART, USI
Peripherals Brown-out Detect/Reset, LCD, POR, PWM, WDT
NumberofI/O 54
ProgramMemorySize 64KB (32K x 16)
ProgramMemoryType FLASH
EEPROMSize 2K x 8
RAMSize 4K x 8
Voltage-Supply(Vcc/Vdd) 1.8V ~ 5.5V
DataConverters A/D 8x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 64-VFQFN Exposed Pad

Overview

Description

ATmega649A-MU is an 8‑bit AVR microcontroller from Atmel (now Microchip) in the megaAVR family. It uses the AVR RISC core and can run up to about 20 MHz, delivering efficient, low‑power control for embedded apps.
Package: MU denotes a 40‑pin surface‑mount package (typical 40‑pin QFN/TQFP style).
Memory and peripherals: on‑chip flash memory (64 KB variants are common for the 649 line), plus EEPROM and SRAM. It provides a rich peripheral set: multiple I/O lines, timers (including 16‑bit), PWM outputs, a 10‑bit ADC, USART, SPI, and I2C/TWI, plus watchdog, brown‑out detection, and various sleep modes.
Development: supports in‑system programming via ISP; compatible with standard AVR toolchains (AVR-GCC, Atmel Studio, etc.).
Typical use: general embedded control, sensors, motor/actuator control, and consumer electronics.
Note: exact memory sizes and peripherals depend on the specific -MU variant; consult the datasheet for precise specs.

Features

ATmega649A-MU is a 8/16-bit AVR microcontroller in a 40-pin MU package with:
- Memory: 64 KB Flash, 4 KB EEPROM, 4 KB SRAM
- CPU speed: up to 16 MHz (at 4.5–5.5V; lower voltages allow lower max freq)
- I/O: ~32 programmable I/O pins
- Analog: 8-channel 10-bit ADC; analog comparator
- Timers/PWM: Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) with PWM outputs
- Communications: USART, SPI, and Two-Wire Interface (I2C)
- Interrupts/Debug: multiple external interrupts; JTAG interface (disabled by fuse if needed)
- Power management: multiple sleep modes (Idle, ADC Noise Reduction, Power-down, Power-save, Standby); Brown-out detector
- Peripherals: Watchdog Timer; in-system programming via SPI
- Operating voltage: 2.7–5.5 V; operating temp typically -40 to 85 °C (industrial range)
- Package: 40-pin MU
Note: exact peripheral counts may vary slightly by revision; this lists the core capabilities of the ATmega649A-MU.

Package

The ATMEGA649A-MU is in a 100-pin Thin Quad Flat Pack (TQFP) package.

Pinout

- Pin count: 100-pin MU package (100-pin TQFP).
- Function: An 8-bit AVR microcontroller (ATmega649A) for embedded control; includes on-chip program memory, RAM, EEPROM, GPIO, ADCs, timers, and multiple serial/peripheral interfaces (UART/SPI/I2C), used for general-purpose control in embedded systems.

Manufacturer

Manufacturer: Atmel Corporation, now part of Microchip Technology Inc.
What kind of company: Atmel was a US-based semiconductor company that designed and manufactured microcontrollers and memory products. Microchip Technology, the acquiring company, is a major American semiconductor firm specializing in embedded-control solutions, including microcontrollers, analog ICs, and memory.

Application

- Consumer electronics and household appliances
- Industrial automation and instrumentation
- Automotive body electronics and sensor interfaces
- Robotics and mechatronics (motor control, sensing, I/O)
- Home automation and IoT devices
- Data acquisition and real-time control systems
- Education, prototyping and hobby projects

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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