This is original version of ATmega328P-PU IC which also known as ATmega328P-U. So you may receive IC with printed name ATmega328P-U. The ATMEGA328P- U is a low-power CMOS 8-bit micro-controller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega328P-PU achieves through puts approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers.

All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughput’s up to ten times faster than conventional CISC micro-controllers. The ATmega328P-PU AVR is supported with a full suite of program and system development tools including C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation Kits.

Note: Actual product can vary from image

Features:

1. 8-Bit Micro-controller Atmel AVR advanced RISC architecture
2. 131 Instructions most of which are executed in a single clock cycle
3. Up to 20 MIPS throughput at 20 MHz
4. 32 x 8 working registers.
5. 2 cycle multipliers
6. Optional bootloader with lock bits
7. In System Programming (ISP) by via boot-loader
8. True Read-While-Write operation
9. Programming lock available for software security