Microchip Technology ATMEGA649A-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 15+ | $6.63 | $99.45 |
| 25+ | $6.49 | $162.25 |
| 50+ | $6.13 | $306.50 |
| 100+ | $5.41 | $541.00 |
| N+ | $1.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | SPI, UART/USART, USI |
| Peripherals | Brown-out Detect/Reset, LCD, POR, PWM, WDT |
| Number of I/O | 54 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-TQFP (14x14) |
| Package / Case | 64-TQFP |
| ROHS |
The Microchip ATMEGA649A-AUR is an 8-bit AVR MCU with a built-in LCD controller, running at 16MHz. It provides 64KB flash and 4KB SRAM, operating from 1.8V to 5.5V. Housed in a 64-TQFP package, it is designed for display-centric and low-power embedded applications.
- Integrated LCD driver: Eliminates external display driver ICs, reducing BOM cost and board space.
- Ultra-low voltage operation (1.8V): Enables direct battery operation with minimal power loss.
- 64KB self-programmable flash: Allows in-application firmware updates for field upgrades.
- Rich analog peripherals: Includes ADC, comparator, and brown-out detection for reliable sensing.
- Wide temperature range (-40°C to 85°C): Suitable for outdoor and industrial use.
Metering and Display Panels
The integrated LCD controller and 16MHz AVR core enable efficient multi-segment displays for utility meters and industrial panels.
Portable Medical Devices
Low-voltage operation (1.8V) and low-power sleep modes extend battery life in glucose meters and pulse oximeters.
Home Appliance Control
With PWM and WDT, it manages user interfaces and motor control in washing machines and microwave ovens.
Industrial Process Monitors
The 64KB flash and 4KB SRAM support data logging and real-time sensor monitoring in harsh environments.
Automotive Aftermarket Displays
Wide voltage range and LCD support make it suitable for dashboard add-on displays and trip computers.
Smart Agriculture Sensors
Its low power and robust I/O handle soil moisture sensors and irrigation controllers in remote field deployments.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 16MHz, balancing performance and power consumption.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for direct segment LCD interfacing.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, supporting low-power battery applications.
- Q: How much program memory is available?
- A: It has 64KB of in-system programmable flash memory.
- Q: What package is it offered in?
- A: It comes in a 64-TQFP package with 54 I/O lines.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 16MHz, balancing performance and power consumption.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for direct segment LCD interfacing.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, supporting low-power battery applications.
- Q: How much program memory is available?
- A: It has 64KB of in-system programmable flash memory.
- Q: What package is it offered in?
- A: It comes in a 64-TQFP package with 54 I/O lines.

ATMEGA649A-AUR.pdf