Special Microcontroller Features
̶ Power-on Reset and Programmable Brown-out Detection
̶ Internal Calibrated Oscillator
̶ External and Internal Interrupt Sources
̶ Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
I/O and Packages
̶ 23 Programmable I/O Lines
̶ 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
Operating Voltage:
̶ 1.8 - 5.5V
Temperature Range:
̶ -40C to 85C
Speed Grade:
̶ 0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V
Power Consumption at 1MHz, 1.8V, 25C
̶ Active Mode: 0.2mA
̶ Power-down Mode: 0.1µA
̶ Power-save Mode: 0.75µA (Including 32kHz RTC)
Core
AVR
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
32 KB
Data RAM Size
1 KB
On Chip ADC
Yes
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Package / Case
PDIP-28
Mounting Style
Through Hole
A/D Bit Size
10 bit
A/D Channels Available
6
Data ROM Size
1 KB
Interface Type
2-Wire, SPI, USART
Minimum Operating Temperature
- 40 C
Number of Programmable I/Os
23
Number of Timers
3
Packaging
Tube
Processor Series
megaAVR
Program Memory Type
Flash
Factory Pack Quantity
14
Supply Voltage Max
5.5 V
Supply Voltage Min
1.8 V
ModelsDescriptionOperation
ATMEGA328P-AU8-bit Microcontrollers - MCU, ATMEL, QFP-32Compare
ATMEGA328P-MU8-bit Microcontrollers - MCU, MICROCHIP, VQFN-32Compare
ATMEGA328P-MUR8-bit Microcontrollers - MCU, MICROCHIP, VQFN-32Compare
ATMEGA328P-PN8-bit Microcontrollers - MCU, MICROCHIP, SPDIP-28Compare
ATMEGA328P-20MUATMEL, QFN32Compare
ATMEGA328P-20PUATMEL, DIP-28Compare