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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-TQFP (14x14)
Package / Case 64-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA649P-AU from Microchip Technology is an 8-bit AVR microcontroller with a built-in LCD controller. It operates at 16MHz with 64KB of flash and 4KB of RAM. The supply voltage ranges from 1.8V to 5.5V, making it flexible for various power sources. It is available in a 64-TQFP package.

  • Integrated LCD driver: Saves board space and cost.
  • Wide voltage range: 1.8V to 5.5V for battery or 5V systems.
  • Low power consumption: Suitable for portable devices.
  • Proven AVR architecture: Reliable and easy to program.

LCD Display Panels

The integrated LCD controller drives segment displays directly, reducing external components in industrial panels and meters.

Battery-Powered Instruments

With 1.8V operation and low-power modes, it is ideal for handheld multimeters and portable test equipment.

Home Appliances

Its 5.5V tolerance and PWM outputs control motors and heaters in washing machines and microwaves, with WDT for safety.

Automotive Dashboard

The LCD driver and wide temperature range make it suitable for aftermarket dashboard displays and gauges.

Building Automation

It can manage HVAC control panels with LCD readouts, using its robust I/O and communication interfaces.

Q: What is the maximum speed of the ATMEGA649P-AU?
A: It operates at up to 16MHz.
Q: What is the supply voltage range?
A: It supports 1.8V to 5.5V.
Q: Does it have an LCD controller?
A: Yes, it includes a built-in LCD driver.
Q: How much flash memory is available?
A: It has 64KB of program flash.
Base Product Number : ATMEGA649P
16MHz 64-TQFP 64KB Flash 8-bit Appliances AVR Industrial LCD Low Power MCU
Q: What is the maximum speed of the ATMEGA649P-AU?
A: It operates at up to 16MHz.
Q: What is the supply voltage range?
A: It supports 1.8V to 5.5V.
Q: Does it have an LCD controller?
A: Yes, it includes a built-in LCD driver.
Q: How much flash memory is available?
A: It has 64KB of program flash.