Home datasheet ATMEGA8A-PU

ATMEGA8A-PU

8-bit Atmel Microcontroller with 8KB In-System Programmable Flash
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Description

Overview
The 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.

Features
• 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 Features
   – 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 Features
   – 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

Parameters

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Manufacturer information

ATMEL CORPORATION

Atmel (Microchip Technology) - Atmel was acquired by Microchip in April 2016. Atmel Corporation is an industry leader in the design and manufacture of advanced semiconductors, with focus on microcontrollers, nonvolatile memory, logic, radio frequency (RF) components and sensors. These functions are marketed as standard products, application-specific standard products (ASSPs) or customer-specific products (ASICs) in order to provide a rapid and flexible response to the needs of Atmel’s customers.


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