Microchip Technology ATMEGA649A-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.68 | $6.68 |
| 15+ | $6.47 | $97.05 |
| 25+ | $6.33 | $158.25 |
| 50+ | $5.98 | $299.00 |
| 100+ | $5.27 | $527.00 |
| N+ | $1.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | |
| 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-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The ATMEGA649A-MU from Microchip is an 8-bit AVR microcontroller featuring an integrated LCD controller, making it perfect for display-centric applications. It operates from 1.8V to 5.5V at up to 16MHz, with 64KB flash and 4KB SRAM. The 64-VFQFN package offers a compact footprint. Its low power consumption and robust peripheral set, including PWM and brown-out detection, ensure reliable performance in metering and industrial control.
- Integrated LCD driver: Eliminates external display ICs, reducing cost and board space.
- Wide voltage operation: Works with both 3.3V and 5V systems, increasing design flexibility.
- Low power design: Sleep modes and 1.8V operation extend battery life in portable devices.
- Large memory: 64KB flash supports complex applications and data storage.
- Reliable operation: Brown-out reset and watchdog timer ensure system stability.
Metering and Display Panels
The integrated LCD driver simplifies the design of digital electricity meters, showing consumption directly on a segment display.
Home Appliance Control
With PWM and robust I/O, it manages washing machine cycles and dishwasher timers with user-friendly LCD interfaces.
Industrial Instrumentation
Its wide voltage range and ADC channels allow accurate measurement of pressure and temperature in process control.
Battery-Powered Thermostats
Low-power modes and LCD support make it ideal for programmable thermostats with long battery life.
Automotive Dashboard Clusters
The LCD driver and high-temperature tolerance enable simple gauge clusters in commercial vehicles.
Point-of-Sale Terminals
With 64KB flash, it can handle transaction logic and display data on a small LCD screen.
- Q: What is the operating voltage?
- A: It operates from 1.8V to 5.5V.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for segment displays.
- Q: What is the maximum speed?
- A: The AVR core runs at up to 16MHz.
- Q: How much flash memory is available?
- A: It has 64KB of flash memory.
- Q: What package is this?
- A: It is available in a 64-VFQFN exposed pad package.
- Q: What is the operating voltage?
- A: It operates from 1.8V to 5.5V.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for segment displays.
- Q: What is the maximum speed?
- A: The AVR core runs at up to 16MHz.
- Q: How much flash memory is available?
- A: It has 64KB of flash memory.
- Q: What package is this?
- A: It is available in a 64-VFQFN exposed pad package.

ATMEGA649A-MU.pdf