Description :

The ATmega8A-AU represents a popular member of Microchip's megaAVR family, built on an advanced RISC architecture that achieves throughputs approaching 1 MIPS per MHz. This microcontroller features 8KB of in-system programmable Flash memory with read-while-write capabilities, 1KB of SRAM, and 512 bytes of EEPROM for non-volatile data storage. Operating across a wide voltage range of 2.7V to 5.5V with an extended temperature range of -40°C to +85°C, the device is suitable for both battery-powered and industrial applications. The integrated peripheral set includes a 6-channel 10-bit ADC, hardware SPI, I²C (TWI), and USART interfaces, along with three flexible timer/counters with compare modes. The inclusion of QTouch library support enables capacitive touch sensing capabilities without additional components.


 

Features :

• High-Performance AVR RISC Core: 8-bit architecture delivering up to 16 MIPS at 16MHz

• Advanced Memory Configuration: 8KB Flash, 1KB SRAM, and 512B EEPROM

• Comprehensive Analog Capabilities: 6-channel 10-bit ADC for precision measurement

• Versatile Communication Interfaces: USART, SPI, and Two-Wire Interface (TWI/I²C)

• Extended I/O Capability: 23 programmable I/O lines with multiple functions

• Advanced Power Management: Five sleep modes for optimal power efficiency

• Robust System Features: Power-on reset, programmable brown-out detection, and watchdog timer

• Touch Sensing Support: QTouch® library for capacitive touch interfaces

Applications :

The ATmega8A-AU is ideal for a wide range of embedded applications:

• Industrial Control Systems and automation

• Consumer Electronics and home appliances

• Automotive Accessory Systems

• Internet of Things (IoT) devices and sensors

• Motor Control and power management

• Human-Machine Interfaces with touch sensing

• Battery-Powered Devices and portable instruments

• Educational and prototyping platforms

Technical Specifications :

Additional Information :

• Architecture: Advanced RISC with 32 x 8 general purpose registers

• Instruction Set: 131 powerful instructions, most single clock cycle execution

• Peripheral Highlights:

  • Two 8-bit Timer/Counters with separate prescalers

  • One 16-bit Timer/Counter with separate prescaler and compare/capture modes

  • Programmable Serial USART

  • Master/Slave SPI Serial Interface

• Special Microcontroller Features:

  • Power-on Reset and Programmable Brown-out Detection

  • Internal Calibrated RC Oscillator

  • External and Internal Interrupt Sources