ATmega8
ATmega8L

8-bit AVR with 8K Bytes In-System Programmable Flash

Features
• High-performance, Low-power 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 16 MIPS Throughput at 16 MHz
  – On-chip 2-cycle Multiplier
• Nonvolatile Program and Data Memories
  – 8K Bytes of In-System Self-Programmable Flash
    Endurance: 10,000 Write/Erase Cycles
  – Optional Boot Code Section with Independent Lock Bits
    In-System Programming by On-chip Boot Program
    True Read-While-Write Operation
  – 512 Bytes EEPROM
    Endurance: 100,000 Write/Erase Cycles
  – 1K Byte Internal SRAM
  – 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 MLF package
    Eight Channels 10-bit Accuracy
  – 6-channel ADC in PDIP package
    Eight 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 MLF
• Operating Voltages
  – 2.7 - 5.5V (ATmega8L)
  – 4.5 - 5.5V (ATmega8)
• Speed Grades
  – 0 - 8 MHz (ATmega8L)
  – 0 - 16 MHz (ATmega8)
• Power Consumption at 4 Mhz, 3V, 25°C
  – Active: 3.6 mA
  – Idle Mode: 1.0 mA
  – Power-down Mode: 0.5 µA