Microchip ATMEGA8A-AU

AVR16MHz8KB（4K x 16）

Overview

OverviewThe Atmel®AVR® ATmega8A is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8A achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed.

• High-performance, Low-power Atmel®AVR® 8-bit Microcontroller• Advanced RISC Architecture – 130 Powerful Instructions – Most Single-clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation – Up to 16MIPS Throughput at 16MHz – On-chip 2-cycle Multiplier• High Endurance Non-volatile Memory segments – 8KBytes of In-System Self-programmable Flash program memory – 512Bytes EEPROM – 1KByte Internal SRAM – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM – Data retention: 20 years at 85C/100 years at 25C(1) – Optional Boot Code Section with Independent Lock Bits • In-System Programming by On-chip Boot Program • True Read-While-Write Operation – Programming Lock for Software Security• Atmel QTouch® library support – Capacitive touch buttons, sliders and wheels – Atmel QTouch and QMatrix acquisition – Up to 64 sense channels• Peripheral – Two 8-bit Timer/Counters with Separate Prescaler, one Compare Mode – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode – Real Time Counter with Separate Oscillator – Three PWM Channels – 8-channel ADC in TQFP and QFN/MLF package • Eight Channels 10-bit Accuracy – 6-channel ADC in PDIP package • Six Channels 10-bit Accuracy – Byte-oriented Two-wire Serial Interface – Programmable Serial USART – Master/Slave SPI Serial Interface – Programmable Watchdog Timer with Separate On-chip Oscillator – On-chip Analog Comparator• Special Microcontroller – Power-on Reset and Programmable Brown-out Detection – Internal Calibrated RC Oscillator – External and Internal Interrupt Sources – Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby• I/O and Packages – 23 Programmable I/O Lines – 28-lead PDIP, 32-lead TQFP, and 32-pad QFN/MLF• Operating Voltages – 2.7 - 5.5V – 0 - 16MHz• Power Consumption at 4MHz, 3V, 25C – Active: 3.6mA – Idle Mode: 1.0mA – Power-down Mode: 0.5µA

Features

AVR® ATmega Series
32-TQFP package
Mounting type of Surface Mount

Surface Mount Mounting Type

Applications

There are a lot of Microchip Technology
ATMEGA8A-AU Microcontroller applications.

• Toys
• Robots
• Radio
• Television
• Heater/Fan
• Calculator
• Kindle
• Christmas lights
• 3D printers
• Washing machine