Today, there are 2 major manufacturers of ATMEGA328P Microcontroller: ATMEL Corporation and Microchip Technology. In the list we have provided a Datasheet from each in PDF format. You can download by clicking on the PDF icon.
| Manufacturers | Names | |
|---|---|---|
 | ATMEL [ATMEL Corporation] |  |
 | MICROCHIP [Microchip Technology] | |
ATMEGA328P Microcontroller Characteristics
| Program Memory Type | Flash |
| Program Memory Size (KB) | 32 |
| CPU Speed (MIPS/DMIPS) | 20 |
| Data EEPROM (bytes) | 1024 |
| Timers | 2 x 8-bit – 1 x 16-bit |
| Stand alone PWM | 6 |
| Number of ADCs | 0 |
| ADC Channels | 8 |
| Max ADC Resolution (bits) | 10 |
| Number of Comparators | 1 |
| Temp. Range Min. | -40 |
| Temp. Range Max. | 85 |
| Operation Voltage Max.(V) | 5.5 |
| Operation Voltage Min.(V) | 1.8 |
| Pin Count | 32 |
| Low Power | Yes |
| I2C | 1 -I2C |
In the datasheet for the ATMEGA328P Microcontroller you will find technical specifications, a complementary pair and all possible replacements.