8-BIT MICROCONTROLLER WITH 8K BYTES IN-SYSTEM PROGRAMMABLE FLASH

The ATmega168 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega168 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

• High performance, low power AVR® 8-bit microcontroller
• Advanced RISC architecture
  • 131 powerful instructions
  • most single clock cycle execution
  • 32 × 8 general purpose working registers
  • Fully static operation
  • Up to 20 MIPS throughput at 20MHz
  • On-chip 2-cycle multiplier
• High endurance non-volatile memory segments
  • 4/8/16 Kbytes of in-system self-programmable flash program memory
  • 256/512/512 bytes EEPROM
  • 512/1K/1Kbytes internal SRAM
  • Write/erase cyles: 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
• Peripheral features
  • Two 8-bit timer/counters with separate presale and compare mode
  • One 16-bit timer/counter with separate presale, compare mode, and capture mode
  • Real time counter with separate oscillator
  • Six PWM channels
  • 8-channel 10-bit ADC in TQFP and QFN/MLF package
  • 6-channel 10-bit ADC in PDIP Package
  • Programmable serial USART
  • Master/slave SPI serial interface
  • Byte-oriented 2-wire serial interface (Philips I2C compatible)
  • Programmable watchdog timer with separate on-chip oscillator
  • On-chip analog comparator
  • Interrupt and wake-up on pin change
• Special microcontroller features
  • DebugWIRE on-chip debug system
  • Power-on reset and programmable brown-out detection
  • Internal calibrated oscillator
  • External and internal interrupt sources
  • Five sleep modes: Idle, ADC noise reduction, power-save, power-down, and standby