Arduino UNO R3, ATMEGA328P-U Microcontroller with bootloader installed (DIP-28) & (TQFP32)

Both the DIP-28 and the TQFP32 are available, Same price, Let me know what one you need.

All chips have tested and are 100% working.

The ATMEGA328-PU 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 ATMEGA328-PU achieves throughputs approaching

1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

131 powerful instructions, most single clock cycle execution

32 x 8 general purpose working registers

Fully static operation

Up to 20MIPS throughput at 20MHz

On-chip 2-cycle multiplier

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

Atmel® QTouch® library support

Capacitive touch buttons, sliders and wheels

QTouch and QMatrix® acquisition

Up to 64 sense channels

Two 8bit 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

Programmable serial USART

Serial peripheral interface (SPI)

Thanks for looking.