ATMEGA168P-20PU

‧ 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

‧ High Endurance Non-volatile Memory Segments

– 4/8/16K Bytes of In-System Self-Programmable Flash progam memory

– 256/512/512 Bytes EEPROM

– 512/1K/1K Bytes Internal SRAM

– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

– Data retention: 20 years at 85°C/100 years at 25°C

– Optional Boot Code Section with Independent Lock Bits

– 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

– 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

– 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 ATmega48P/88P/168PV

– 2.7 - 5.5V for ATmega48P/88P/168P

‧ Temperature Range:

– -40°C to 85°C

‧ Speed Grade:

– ATmega48P/88P/168PV: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V

– ATmega48P/88P/168P: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V

‧ Low Power Consumption at 1 MHz, 1.8V, 25°C:

– Active Mode: 0.3 mA

– Power-down Mode: 0.1 μA