Microchip Technology ATMEGA3290PA-AUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Cut Tape (CT) | NULL
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity SPI, UART/USART, USI
Peripherals Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number of I/O 69
Program Memory Size 32KB (16K x 16)
Program Memory Type FLASH
EEPROM Size 1K x 8
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 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 100-TQFP (14x14)
Package / Case 100-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA3290PA-AUR from Microchip Technology is an 8-bit AVR MCU with a 20MHz RISC core. It features 32KB of Flash and 2KB of RAM, operating from 2.7V to 5.5V. The 100-pin TQFP package includes an integrated LCD controller, making it ideal for display-centric applications. Additional features include Brown-out Reset, POR, PWM, and WDT for robust embedded systems.

  • Integrated LCD Driver: Eliminates external display driver ICs, reducing cost and PCB area.
  • Wide Voltage Range: 2.7V-5.5V allows operation in both 3.3V and 5V systems, increasing design flexibility.
  • High I/O Count: 100-pin TQFP provides numerous GPIOs for complex peripheral interfacing.
  • Low-Power AVR Core: 20MHz performance with sleep modes for energy-efficient operation.

Industrial Panel Meters

The integrated LCD driver and 20MHz AVR core enable direct display of process variables, while 32KB Flash stores calibration routines and communication stacks.

Medical Instrumentation

With 2.7V-5.5V operation and 2KB RAM, it powers portable blood pressure monitors, using the LCD to show readings and PWM for buzzer alerts.

Home Appliance Displays

The 100-TQFP package and LCD controller simplify microwave oven and washing machine interfaces, reducing external driver ICs and BOM cost.

Automotive Dashboard Clusters

Its wide temperature range and 5V compatibility suit aftermarket gauge clusters, with the LCD driver displaying speed and fuel levels.

Point-of-Sale Terminals

The 32KB Flash accommodates payment protocols, while the LCD shows transaction details and the WDT ensures reliable operation in retail environments.

Environmental Monitoring Stations

Low-power sleep modes and 2.7V operation support battery-powered weather stations, with the LCD displaying temperature and humidity data.

Q: What is the maximum clock speed of the ATMEGA3290PA-AUR?
A: It runs at up to 20MHz with an AVR 8-bit RISC core.
Q: What is the program memory size?
A: It has 32KB of Flash (16K x 16) for code storage.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver, ideal for display applications.
Q: What is the operating voltage range?
A: It operates from 2.7V to 5.5V, supporting both 3.3V and 5V systems.
Q: What package is available?
A: It comes in a 100-pin TQFP package, suitable for complex designs.
Base Product Number : ATMEGA3290PA
20MHz 2KB RAM 32KB Flash 8-bit MCU appliances AVR industrial LCD driver medical POR PWM TQFP-100 WDT
Q: What is the maximum clock speed of the ATMEGA3290PA-AUR?
A: It runs at up to 20MHz with an AVR 8-bit RISC core.
Q: What is the program memory size?
A: It has 32KB of Flash (16K x 16) for code storage.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver, ideal for display applications.
Q: What is the operating voltage range?
A: It operates from 2.7V to 5.5V, supporting both 3.3V and 5V systems.
Q: What package is available?
A: It comes in a 100-pin TQFP package, suitable for complex designs.