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Features

? High Performance, Low Power AVR? 8-Bit Microcontroller

? Advanced RISC Architecture

– 131 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 24 MIPS Throughput at 24 MHz

– On-chip 2-cycle Multiplier

? Non-volatile Program and Data Memories

– 4/8/16K Bytes of In-System Self-Programmable Flash (ATmega48/88/168)

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

– 256/512/512 Bytes EEPROM (ATmega48/88/168)

Endurance: 100,000 Write/Erase Cycles

– 512/1K/1K Byte Internal SRAM (ATmega48/88/168)

– Programming Lock for Software Security

? Peripheral Features

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture

Mode

– Real Time Counter with Separate Oscillator

– Six PWM Channels

– 8-channel 10-bit ADC in TQFP and MLF package

– 6-channel 10-bit ADC in PDIP Package

– Programmable Serial USART

– Master/Slave SPI Serial Interface

– Byte-oriented 2-wire Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on Pin Change

? Special Microcontroller Features

– 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

? I/O and Packages

– 23 Programmable I/O Lines

– 28-pin PDIP, 32-lead TQFP and 32-pad MLF

? Operating Voltage:

– 1.8 - 5.5V for ATmega48V/88V/168V

– 2.7 - 5.5V for ATmega48/88/168

? Temperature Range:

– -40°C to 85°C

? Speed Grade:

– ATmega48V/88V/168V: 0 - 6 MHz @ 1.8 - 5.5V, 0 - 12 MHz @ 2.7 - 5.5V

– ATmega48/88/168: 0 - 12 MHz @ 2.7 - 5.5V, 0 - 24 MHz @ 4.5 - 5.5V

? Low Power Consumption

– Active Mode:

1 MHz, 1.8V: 240μA

32 kHz, 1.8V: 15μA (including Oscillator)

– Power-down Mode:

0.1μA at 1.8V