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 20 MIPS Throughput at 20 MHz
– On-chip 2-cycle Multiplier
• Non-volatile Program and Data Memories
– 4/8/16/32K Bytes of In-System Self-Programmable Flash
(ATmega48P/88P/168P/328P)
8-bit
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
– 256/512/512/1K Bytes EEPROM (ATmega48P/88P/168P/328P)
Endurance: 100,000 Write/Erase Cycles
Microcontroller
with 4/8/16/32K
Bytes In-System
Programmable
Flash
– 512/1K/1K/2K Byte Internal SRAM (ATmega48P/88P/168P/328P)
– 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 QFN/MLF package
Temperature Measurement
ATmega48P/V
ATmega88P/V
ATmega168P/V
ATmega328P/V
– 6-channel 10-bit ADC in PDIP Package
Temperature Measurement
– 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
Preliminary
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
and Extended Standby
• I/O and Packages
– 23 Programmable I/O Lines
– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
• Operating Voltage:
– 1.8 - 5.5V for ATmega48PV/88PV/168PV/328PV
– 2.7 - 5.5V for ATmega48P/88P/168P/328P
• Temperature Range:
– -40°C to 85°C
• Speed Grade:
– ATmega48PV/88PV/168PV/328PV: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
– ATmega48P/88P/168P/328P: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
• Low Power Consumption
– Active Mode:
1 MHz, 1.8V: TBD µA
32 kHz, 1.8V: TBD µA (including Oscillator)
– Power-down Mode:
Rev. 8025AS–AVR–07/07
TBD µA at 1.8V