ATMEGA328P -PU - DIP28 IC Chip ATMEGA328P-PU Microcontroller 32k Flash Memory [ElectricA]

The high-performance Microchip picoPower® 8-bit AVR® RISC-based microcontroller combines 32 KB ISP Flash memory with read-while-write capabilities, 1024B EEPROM, 2 KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented Two-Wire serial interface, SPI serial port, a 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed.

28-pin AVR Microcontroller
Flash Program Memory: 32 kbytes
EEPROM Data Memory: 1 kbytes
SRAM Data Memory: 2 kbytes
I/O Pins: 23
Timers: Two 8-bit / One 16-bit
A/D Converter: 10-bit Six Channel
PWM: Six Channels
RTC: Yes with Separate Oscillator
MSSP: SPI and I²C Master and Slave Support
USART: Yes
External Oscillator: up to 20MHz