Microchip Technology

ATMEGA8A-AU  

Microcontrollers

Microchip Technology's ATMEGA8A-AU is a low-power, high-performance 8-bit microcontroller unit (MCU) based on the enhanced AVR architecture. It is designed to provide high computation power, efficient power consumption, and a wide range of features in a compact package. Here is a detailed description of the ATMEGA8A-AU, including its features and applications:

Description:

The ATMEGA8A-AU is an 8-bit AVR microcontroller with 8KB of in-system programmable flash memory, 1KB EEPROM, and 1KB SRAM. It operates at a frequency of up to 20 MHz and is available in a 28-pin TQFP (Thin Quad Flat Package) package. This microcontroller is specifically designed for applications that require low power consumption, high computation power, and a wide range of integrated peripherals.

Features:

1. Enhanced AVR RISC architecture with 128 general-purpose working registers for efficient code execution.
2. 8KB of in-system programmable flash memory for storing the program code.
3. 1KB EEPROM for non-volatile storage of data.
4. 1KB SRAM for temporary data storage and program execution.
5. Internal and external memory interfaces with byte-level access.
6. On-chip debug system for easy debugging and programming.
7. JTAG (Joint Test Action Group) interface for boundary scan testing and programming.
8. Up to 14 general-purpose I/O lines with optional internal pull-up resistors.
9. 2-channel 8-bit timer/counter with input capture and output compare capabilities.
10. Real-time clock (RTC) with calendar and alarm functions.
11. 8-channel, 10-bit analog-to-digital converter (ADC) with programmable gain.
12. 2-channel, 8-bit digital-to-analog converter (DAC) with programmable output.
13. Serial communication interfaces, including a Universal Synchronous/Asynchronous Receiver/Transmitter (USART) and Serial Peripheral Interface (SPI).
14. Inter-Integrated Circuit (I2C) and Serial Wire Debug (SWD) interfaces.
15. Programmable watchdog timer with internal oscillator.
16. Power-saving sleep modes to reduce power consumption during idle periods.

Applications:

The ATMEGA8A-AU is suitable for a wide range of applications due to its low power consumption, high computation power, and versatile features. Some common applications include:

1. Industrial control systems and automation.
2. Home automation and smart appliances.
3. Portable electronic devices, such as fitness trackers and wearable electronics.
4. Battery-powered devices, where power efficiency is critical.
5. Data acquisition and signal processing systems.
6. Medical devices and equipment.
7. Embedded systems in automotive applications.
8. IoT (Internet of Things) devices and sensors.
9. Robotics and control systems.
10. Consumer electronics, such as toys and gaming devices.

In summary, the ATMEGA8A-AU from Microchip Technology is a versatile, low-power, high-performance 8-bit microcontroller with a wide range of features and applications. Its compact form factor and integrated peripherals make it an ideal choice for various embedded systems and applications where power efficiency and computation power are crucial.

ATMEGA8A-AU Documents

Download datasheets and manufacturer documentation for ATMEGA8A-AU

Errata :

ATmega8A Errata~      

PCN Assembly/Origin :

Fabrication Site 27/Sep/2023      

Datasheets :

ATmega8A Complete       ATmega8A Summary      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

ATmega8A Development Tool Selector      

HTML Datasheet :

ATmega8A Summary      

PCN Design/Specification :

ATmega8A 06/Mar/2020       ATmega8A 10/Jan/2018      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH