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ATMEGA8 Datasheet - Atmel

ATMEGA8 Datasheet PDF Atmel Corporation

Part Name
ATMEGA8

Other PDF
  not available.

PDF

page
331 Pages

File Size
4.9 MB

MFG CO.
Atmel
Atmel Corporation GO URL

Overview
The Atmel®AVR® ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughputs approaching 1MIPS 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 × 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
• 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
   – 2.7V - 5.5V (ATmega8L)
   – 4.5V - 5.5V (ATmega8)
• Speed Grades
   – 0 - 8MHz (ATmega8L)
   – 0 - 16MHz (ATmega8)
• Power Consumption at 4Mhz, 3V, 25C
   – Active: 3.6mA
   – Idle Mode: 1.0mA
   – Power-down Mode: 0.5µA

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