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ATMEGA649A-MU

Name: ATMEGA649A-MU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 64KB FLASH 64QFN

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Mfr。パート #ATMEGA649A-MU
パッケージ 64-VFQFN Exposed Pad
データシート ATMEGA649A-MU DataSheet
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仕様

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

概要

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