ATMEGA328P-PU DIP-28N Processor 20MHz 32k picopower

The ATmega328P is a low-power CMOS 8-bit microcontroller based on the
AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega48PA/88PA/168PA/328P achieves throughputs approaching 1 MIPS per MHz allowing
the system designer to optimize power consumption versus processing speed.

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
* High Endurance Non-volatile Memory Segments
- 4/8/16/32K Bytes of In-System Self-Programmable Flash progam memory
(ATmega48PA/88PA/168PA/328P)
- 256/512/512/1K Bytes EEPROM (ATmega48PA/88PA/168PA/328P)
- 512/1K/1K/2K Bytes Internal SRAM (ATmega48PA/88PA/168PA/328P)
- 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
* 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 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 ATmega48PA/88PA/168PA/328P
* Temperature Range:
- -40°C to 85°C
* Speed Grade:
- 0 - 20 MHz @ 1.8 - 5.5V
* Low Power Consumption at 1 MHz, 1.8V, 25°C for ATmega48PA/88PA/168PA/328P:
- Active Mode: 0.2 mA
- Power-down Mode: 0.1 ìA
- Power-save Mode: 0.75 ìA (Including 32 kHz RTC)