ATMEGA329-16MU
8-bit AVR microcontrollers with 32KB flash memory for versatile applications
Manufacturer： ['microchip', 'atmel']
series introduction
# Introduction to the ATMEGA329 - 16MU Product Series
## 1. Overview
The ATMEGA329 - 16MU is a remarkable member of the AVR microcontroller family developed by Microchip Technology. This product series is engineered to offer a high - performance, cost - effective, and feature - rich solution for a wide range of embedded system applications. With its advanced architecture and comprehensive set of peripherals, it serves as an ideal choice for both hobbyists and professional developers.
## 2. Key Features
### 2.1 Microcontroller Core
- **AVR 8 - bit RISC Architecture**: The ATMEGA329 - 16MU is based on the AVR 8 - bit Reduced Instruction Set Computing (RISC) architecture. This architecture allows for efficient execution of instructions, with most instructions being executed in a single clock cycle. As a result, it can achieve high processing speeds and excellent performance, making it suitable for applications that require real - time processing.
- **16 MHz Clock Frequency**: Operating at a maximum clock frequency of 16 MHz, the microcontroller can handle complex tasks quickly. This high clock speed enables fast data processing, which is crucial for applications such as motor control, sensor data acquisition, and communication protocols.
### 2.2 Memory
- **32 KB Flash Memory**: The on - board 32 KB of in - system self - programmable Flash memory provides ample space for storing the application code. This non - volatile memory allows the microcontroller to retain the program even when the power is turned off. Developers can easily update the code using standard programming interfaces, facilitating product development and maintenance.
- **2 KB SRAM**: The 2 KB of Static Random - Access Memory (SRAM) is used for storing variables and data during program execution. It provides fast access to data, which is essential for efficient program operation. The sufficient SRAM capacity allows for the implementation of complex algorithms and data - handling routines.
- **1 KB EEPROM**: The Electrically Erasable Programmable Read - Only Memory (EEPROM) is a non - volatile memory that can be used to store critical data such as calibration values, configuration settings, and user preferences. It can be written and erased multiple times, providing flexibility for data storage requirements.
### 2.3 Peripherals
#### 2.3.1 General - Purpose Input/Output (GPIO)
- The ATMEGA329 - 16MU features a generous number of GPIO pins. These pins can be configured as either input or output, allowing for easy interfacing with external devices such as sensors, actuators, and displays. The GPIO pins can also be used for bit - banging communication protocols, providing additional flexibility in system design.
#### 2.3.2 Timer/Counters
- It is equipped with multiple timer/counters, including 8 - bit and 16 - bit timers. These timers can be used for a variety of purposes, such as generating precise time delays, measuring time intervals, and controlling PWM (Pulse Width Modulation) signals. PWM signals are commonly used in applications such as motor speed control and LED brightness adjustment.
#### 2.3.3 Serial Communication Interfaces
- **USART (Universal Synchronous/Asynchronous Receiver/Transmitter)**: The USART interface enables serial communication with other devices, such as computers, sensors, and communication modules. It supports both synchronous and asynchronous communication modes, allowing for flexible data transfer at various baud rates.
- **SPI (Serial Peripheral Interface)**: The SPI interface provides a high - speed serial communication protocol for connecting to external devices such as flash memories, sensors, and displays. It allows for fast data transfer between the microcontroller and the peripheral devices, making it suitable for applications that require
Images for reference
64-VFQFN Exposed Pad
64-QFN Pkg
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