ATMEGA328P-AU Microchip High Performance Low Power AVR 8-Bit Microcontroller Family

Micron chips ATMEGA328P-AU High Performance, Low Power AVR® 8-Bit Microcontroller Family

Introduction
The ATmega48A/PA/88A/PA/168A/PA/328/P is a low power, CMOS 8-bit microcontrollers based on the
AVR® enhanced RISC architecture. By executing instructions in a single clock cycle, the devices achieve
CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the sys-tem designer to optimize power consumption versus processing speed.

Features
High Performance, Low Power AVR® 8-Bit Microcontroller Family
Advanced RISC Architecture
131 Pwerful 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 85°C/100 years at 25°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
QTouch® library support
Capacitive touch buttons, sliders and wheels
QTouch and QMatrix™ acquisition
Up to 64 sense channels
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 VQFN package
Temperature Measurement
6-channel 10-bit ADC in SPDIP Package
Temperature Measurement
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
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 SPDIP, 32-lead TQFP, 28-pad VQFN and 32-pad VQFN
Operating Voltage:
1.8 - 5.5V
Temperature Range:
-40°C to 85°C
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, 25°C
Active Mode: 0.2mA
Power-down Mode: 0.1µA
• Power-save Mode: 0.75µA (Including 32kHz RTC)