ATMEGA8L-8AU
8-bit AVR microcontrollers with 8KB Flash, 32-pin TQFP package
Manufacturer： ['microchip', 'atmel']
series introduction
# Introduction to the ATMEGA8L - 8AU Product Series
## 1. Overview
The ATMEGA8L - 8AU is a member of the popular AVR microcontroller family developed by Microchip Technology (formerly Atmel). This product series is renowned for its combination of high - performance, low - power consumption, and rich peripheral features, making it an ideal choice for a wide range of embedded system applications.
## 2. Key Features
### 2.1 Microcontroller Core
- **AVR RISC Architecture**: The ATMEGA8L - 8AU is based on the advanced AVR Reduced Instruction Set Computer (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 while minimizing power consumption.
- **8 - bit CPU**: It features an 8 - bit central processing unit (CPU) that provides sufficient processing power for a variety of applications, including sensor data processing, control systems, and simple communication tasks.
### 2.2 Memory
- **Flash Memory**: The microcontroller is equipped with 8KB of in - system self - programmable Flash memory. This non - volatile memory is used to store the program code. The self - programming feature allows for easy firmware updates, which is crucial for product development and maintenance.
- **SRAM**: There is 1KB of Static Random - Access Memory (SRAM) available for data storage during program execution. This SRAM provides a fast and reliable workspace for variables, buffers, and intermediate results.
- **EEPROM**: A 512 - byte Electrically Erasable Programmable Read - Only Memory (EEPROM) is also included. EEPROM is useful for storing critical data that needs to be retained even when the power is turned off, such as calibration values, configuration settings, and user preferences.
### 2.3 Low - Power Operation
- **Multiple Power Modes**: The ATMEGA8L - 8AU offers several power - saving modes, including Idle mode, ADC Noise Reduction mode, Power - Down mode, Power - Save mode, Standby mode, and Extended Standby mode. In Power - Down mode, the microcontroller consumes extremely low power while still retaining the contents of the SRAM and EEPROM. This makes it suitable for battery - powered applications where power efficiency is of utmost importance.
- **Low - Voltage Operation**: It can operate at a wide range of supply voltages, typically from 2.7V to 5.5V. The low - voltage operation not only reduces power consumption but also makes it compatible with a variety of power sources.
### 2.4 Peripherals
#### 2.4.1 Timers/Counters
- **Three Timers/Counters**: The microcontroller has three timers/counters, including two 8 - bit timers/counters (Timer/Counter0 and Timer/Counter2) and one 16 - bit timer/counter (Timer/Counter1). These timers can be used for a variety of applications, such as generating precise time delays, measuring time intervals, and generating Pulse Width Modulation (PWM) signals for motor control and LED dimming.
#### 2.4.2 Analog - to - Digital Converter (ADC)
- **8 - Channel 10 - bit ADC**: The ATMEGA8L - 8AU features an 8 - channel 10 - bit ADC, which can convert analog input signals into digital values with high precision. This is useful for applications that require the measurement of analog signals, such as temperature sensors, light sensors, and pressure sensors.
#### 2.4.3 Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
- **Full - Dup
Images for reference
32-TQFP
AT42QT1111-AU
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