Popular Atmel ATMega328P in a surface mount QFP package (HCCOIC0035) as used in development boards such as the Arduino Uno, Nano, Pro Mini etc.
High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family
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 20MHz
On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory Segments
4/8/16/32KBytes of In-System Self-Programmable Flash program memory
256/512/512/1KBytes EEPROM
512/1K/1K/2KBytes Internal SRAM
Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
Data retention: 20 years at 85ï‚°C/100 years at 25ï‚°C(1)
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
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 I2
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
Operating Voltage:
1.8 - 5.5V
Temperature Range:
-40oC to 85oC
Speed Grade:
0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V
Power Consumption at 1MHz, 1.8V, 25oC
Active Mode: 0.2mA
Power-down Mode: 0.1µA
Power-save Mode: 0.75µA (Including 32kHz RTC)
