ATmega328P-AU

Part: Atmel ATmega328P

Type: 8-bit AVR Microcontroller

Description: High-performance, low-power 8-bit AVR microcontroller with 32K bytes in-system self-programmable Flash, 2K bytes SRAM, 1K bytes EEPROM, and up to 16MIPS throughput at 16MHz.

Operating Conditions:

• Supply voltage: 2.7V to 5.5V
• Operating temperature: -40°C to +125°C (Automotive temperature range)
• Speed grade: 0 to 8MHz at 2.7 to 5.5V; 0 to 16MHz at 4.5 to 5.5V

Absolute Maximum Ratings:

• Max supply voltage: 5.5V (from operating voltage range)

Key Specs:

• Flash program memory: 32K bytes (10,000 write/erase cycles)
• EEPROM: 1K bytes (100,000 write/erase cycles)
• Internal SRAM: 2K bytes
• Throughput: Up to 16MIPS at 16MHz
• I/O lines: 23 programmable
• ADC: 8-channel 10-bit (in TQFP and QFN/MLF packages)
• Active mode current: 1.5mA at 3V - 4MHz
• Power-down mode current: 1μA at 3V

Features:

• Advanced RISC architecture with 131 instructions
• On-chip 2-cycle multiplier
• Two 8-bit Timer/Counters, one 16-bit Timer/Counter, Real Time Counter
• Six PWM channels
• Programmable serial USART, Master/slave SPI, Byte-oriented 2-wire serial interface (I2C compatible)
• Six sleep modes: Idle, ADC noise reduction, power-save, power-down, standby, and extended standby

Applications:

Package:

• 32-lead TQFP
• 32-pad QFN/MLF

• 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 16MIPS throughput at 16MHz
• On-chip 2-cycle multiplier
• High endurance non-volatile memory segments
• 32K bytes of in-system self-programmable flash program memory
• 1Kbytes EEPROM
• 2Kbytes internal SRAM
• Write/erase cycles: 10,000 flash/100,000 EEPROM
• Optional boot code section with independent lock bits
• In-system programming by on-chip boot program
• True read-while-write operation
• 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
• Programmable serial USART
• Master/slave SPI serial interface
• Byte-oriented 2-wire serial interface (Phillips I 2 C 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

Figure 1-1. Pinout

All DC/AC characteristics contained in this datasheet are based on characterization of Atmel ® ATmega328P AVR ® microcontroller manufactured in an automotive process technology.

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Note: 1. Maximum current per port = ±30mA