Part Number: ATmega88PA-AU

Manufacturer: Microchip Technology

Description: IC MCU 8BIT 8KB FLASH 32TQFP

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ATMEGA88PA-AU

Datasheet  ATMEGA88PA-AU datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer Atmel
Series AVR? ATmega
Packaging Tray
Part Status Active
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 23
Program Memory Size 8KB (4K x 16)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 1K x 8
Voltage – Supply (Vcc/Vdd) 1.8 V ~ 5.5 V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 32-TQFP
Supplier Device Package 32-TQFP (7×7)


Microcontrollers have changed the field of electronics by making solutions that are small, flexible, and efficient for a wide range of uses. The Atmel ATmega88PA-AU is a great low-power CMOS 8-bit microcontroller built on the AVR® enhanced RISC architecture. It stands out in this field. In this thorough guide, we’ll get into the details of the ATmega88PA-AU microcontroller, looking at its features, powers, and possible uses. Whether you’re an experienced creator of embedded systems or new to the world of microcontrollers, this guide will give you the information you need to use the ATmega88PA-AU to its fullest.

ATmega88PA-AU Key Features and Advantages

The ATmega88PA-AU microcontroller boasts an array of features that make it a standout choice for developers and engineers:

● Enhanced RISC Architecture

The AVR-enhanced RISC design is the heart of ATmega88PA-AU’s power. It has great speed because it can run powerful instructions in a single clock cycle. This makes it easy to run code and finish tasks quickly.

● Ample Flash Memory

The ATmega88PA-AU can run complicated programs and applications because it has a lot of Flash memory. This gives you a lot of room for storing code and a lot of freedom when designing complex functions.

● Rich Peripheral Integration

The microcontroller has a number of built-in peripherals, such as timers, communication ports (SPI, I2C, and USART), and analog-to-digital converters. This integration makes hardware design easier, lowers the number of external parts needed, and speeds up development.

● Power-Saving Modes

The ATmega88PA-AU has a number of power-saving modes that help developers to make the best use of energy. This is especially important when saving power is the most important thing, like with battery-powered devices or remote sensor networks.

● Robust Development Ecosystem

Atmel offers a strong development environment that includes software tools, libraries, and detailed instructions. This community makes it easier to build things and gets them to market faster.

● Wide Application Spectrum

The versatility of the ATmega88PA-AU is shown by the fact that it can be used for so many different things, such as industrial automation, consumer electronics, Internet of Things (IoT) devices, robots, and more.

Unveiling the AVR Enhanced RISC Architecture

The AVR-enhanced RISC design is at the heart of the power of the Atmel ATmega88PA-AU microcontroller. This design theory combines simplicity and efficiency to make things work better and use less energy.

The AVR Architecture Essence

  1. RISC Efficiency: Embracing the principles of Reduced Instruction Set Computing (RISC), the AVR architecture employs a concise instruction set. Each instruction executes in just one clock cycle, ensuring rapid task completion and real-time responsiveness.
  2. Register Richness: Featuring 32 general-purpose registers, the architecture minimizes memory access times. This translates to faster operations and reduced need for memory fetching.
  3. Harvard Harmony: With separate memory spaces for instructions and data, the Harvard architecture enhances data throughput and enables efficient concurrent fetching.

RISC’s Impact

  1. Speedy Execution: RISC’s streamlined instructions translate to fast execution times. Instructions complete swiftly, leading to efficient task handling.
  2. Consistency: Predictable execution times for each instruction simplify code optimization and ensure reliable real-time performance.
  3. Compiler Compatibility: RISC’s simplicity facilitates compiler optimization, generating efficient code and enhancing overall system performance.

ATmega88PA-AU’s Marvel

The ATmega88PA-AU achieves outstanding performance by utilizing the AVR-enhanced RISC architecture. The microcontroller offers excellent throughput with instructions running in a single clock cycle, making it the perfect choice for a variety of applications, from controllers to communication systems. Developers may unleash ATmega88PA-AU’s potential by understanding this design, enabling innovation and efficiency in their projects.

ATmega88PA-AU Technical Specifications: Unveiling the Microcontroller’s Power

A brilliant work of engineering, the Atmel ATmega88PA-AU microcontroller offers a wealth of technological details that make it a flexible and effective option for a variety of applications. In this section, we’ll examine the microcontroller’s sophisticated capabilities, including clock speed, memory organization, data processing prowess, and the peripherals, timers, and communication interfaces that give it power.

Clock Speed and Performance

  • Clock Speed: The ATmega88PA-AU operates at a clock speed of [insert clock speed] MHz. This clock speed dictates the rate at which instructions are executed, contributing to the microcontroller’s overall performance.

Memory Organization

  • Flash Memory: The microcontroller boasts [insert flash memory size] of Flash memory. This memory space is used for storing program code, ensuring ample room for complex applications.
  • SRAM: With [insert SRAM size] of SRAM, the ATmega88PA-AU provides fast and temporary data storage, facilitating efficient data manipulation during program execution.
  • EEPROM: [insert EEPROM size] of EEPROM memory is available, enabling non-volatile data storage for critical parameters and settings.

Data Processing Capabilities

  • Bit-Handling Capabilities: The microcontroller is equipped with advanced bit manipulation instructions, enabling efficient control over individual bits in registers.
  • Arithmetic and Logic Unit (ALU): The integrated ALU performs arithmetic and logic operations, contributing to the microcontroller’s computational capabilities.

Peripherals and Timers

  • Timers/Counters: The ATmega88PA-AU features [insert number of timers] timers/counters, each supporting various modes and functions, including PWM generation and interval timing.
  • Analog-to-Digital Converter (ADC): With [insert number of ADC channels] ADC channels, the microcontroller can perform analog-to-digital conversion, enabling accurate measurement of analog signals.

Communication Interfaces

  • Serial Peripheral Interface (SPI): The SPI interface allows synchronous serial communication with external devices, facilitating data exchange and interfacing.
  • Inter-Integrated Circuit (I2C): The I2C interface supports multi-device communication through a two-wire bus, enabling efficient data transfer in various applications.
  • Universal Synchronous and Asynchronous Receiver-Transmitter (USART): The USART interface offers versatile serial communication capabilities, supporting both synchronous and asynchronous modes.

Practical Applications of Interrupts

  1. Button Debouncing: Utilize interrupts to handle button presses without the need for constant polling. Implement debouncing logic to ensure accurate button detection.
  2. Ultrasonic Distance Measurement: Employ interrupts to capture the precise time-of-flight for ultrasonic signals, facilitating accurate distance measurements.
  3. Real-Time Clock (RTC): Construct an RTC using timers and interrupts to maintain accurate timekeeping in applications such as data logging or scheduling.

Practical Applications of Timers

  1. LED Blinking: Configure a timer to generate precise intervals for LED blinking, adding visual feedback to your projects.
  2. Pulse Width Modulation (PWM): Use timers to generate PWM signals, controlling the intensity of LEDs or the speed of motors.
  3. Periodic Sensor Reading: Set up timers to trigger periodic readings from sensors, optimizing power consumption and data collection.


The Atmel ATmega88PA-AU microcontroller unlocks limitless possibilities for electronic enthusiasts, hobbyists, and professionals. With its low power consumption, high processing speed, and versatile features, it’s the ideal choice for a wide range of applications. This guide equips you to explore advanced concepts and embark on exciting projects. Partner with ICRFQ, your premier source in China, to access unmatched capabilities and shape a limitless technological future with the ATmega88PA-AU. Step into the spotlight of innovation today!

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