Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $6.68
Regular price $7.03 Sale price $6.68
Sale Sold out
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
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

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.
Base Product Number : ATMEGA649A
64-VFQFN 8-bit MCU ATMEGA649A AVR industrial LCD controller low power metering Microchip PWM
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.