Product Summary

The ATMEGA328P-MU 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 ATMEGA328P-MU achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.


ATMEGA328P-MU absolute maximum ratings: (1)Operating Temperature: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on any Pin except RESET with respect to Ground: -0.5V to VCC+0.5V; (4)Voltage on RESET with respect to Ground: -0.5V to +13.0V; (5)Maximum Operating Voltage: 6.0V; (6)DC Current per I/O Pin: 40.0 mA; (7)DC Current VCC and GND Pins: 200.0 mA.


ATMEGA328P-MU features: (1)Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode; (2)One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode; (3)Real Time Counter with Separate Oscillator; (4)Six PWM Channels; (5)8-channel 10-bit ADC in TQFP and QFN/MLF package Temperature Measurement; (6)6-channel 10-bit ADC in PDIP Package Temperature Measurement; (7)Programmable Serial USART; (8)Master/Slave SPI Serial Interface; (9)Byte-oriented 2-wire Serial Interface (Philips I2C compatible); (10)Programmable Watchdog Timer with Separate On-chip Oscillator; (11)On-chip Analog Comparator; (12)Interrupt and Wake-up on Pin Change.


ATMEGA328P-MU pin connection

Image Part No Mfg Description Data Sheet Download Pricing


8-bit Microcontrollers (MCU) 32KB In-system Flash 20MHz 1.8V-5.5V

Data Sheet

0-1: $1.83
1-10: $1.52
10-25: $1.15
25-100: $1.04


8-bit Microcontrollers (MCU) AVR 32K FLSH 2K SRAM 1KB EE-20MHz IND

Data Sheet

0-5010: $1.06
5010-6000: $1.06