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| PartNumber | ATMEGA328P-15AZ | ATMEGA328P-15MZ | ATMEGA328P |
| Description | 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V | Microcontrollers - MCU 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V | |
| Manufacturer | Microchip | Atmel | - |
| Product Category | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-32 | - | - |
| Series | ATmega328P | Automotive, AEC-Q100, AVRR ATmega | - |
| Core | AVR | AVR | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 20 MHz | 20 MHz | - |
| Program Memory Size | 32 kB | 32KB (16K x 16) | - |
| Data RAM Size | 2 kB | 2 kB | - |
| ADC Resolution | 10 bit | 10 bit | - |
| Number of I/Os | 23 I/O | - | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 85 C | - |
| Packaging | Reel | Digi-ReelR Alternate Packaging | - |
| Height | 1.05 mm (Max) | - | - |
| Length | 7 mm | - | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | FLASH | - |
| Width | 7 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 1 kB | 1 kB | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | I2C, SPI, USART | I2C SPI USART | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 8 | 8 | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Processor Series | megaAVR | megaAVR | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 2000 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 1.8 V | - | - |
| Tradename | AVR | ATMEGA | - |
| Unit Weight | 0.002568 oz | - | - |
| Package Case | - | MLF-32 | - |
| Operating Temperature | - | -40°C ~ 125°C (TA) | - |
| Supplier Device Package | - | 32-QFN (5x5) | - |
| Number of I O | - | 23 | - |
| Speed | - | 16MHz | - |
| EEPROM Size | - | 1K x 8 | - |
| Core Processor | - | AVR | - |
| RAM Size | - | 2K x 8 | - |
| Peripherals | - | Brown-out Detect/Reset, POR, PWM, WDT | - |
| Connectivity | - | I2C, SPI, UART/USART | - |
| Voltage Supply Vcc Vdd | - | 2.7 V ~ 5.5 V | - |
| Core Size | - | 8-Bit | - |
| Data Converters | - | A/D 8x10b | - |
| Oscillator Type | - | Internal | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 1.8 V | - |
| Number of I Os | - | 23 I/O | - |
| Number of Timers Counters | - | 3 Timer | - |