ATMEGA328P-AU Part Information

Details for ATMEGA328P-AU by Microchip Technology


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Part Specifications

Family ATmegaAVR
Part Family ATmega48
Part Prefix ATmega
Architecture 8
Core 8-bit AVR
MaxSpeed (MHz) 20
CPU Type 8-bit AVR
Program Memory Type Flash
SelfWrite Yes
Program Memory Size (KB) 32
Program Memory Size (KWords) 16
Multiple Flash Panels True
Secure Bootloader (CodeGuard™ Security) None
RAM (KB) 2048
Data EEPROM (bytes) 1024
Temp. Range Min. -40
Temp. Range Max. 85
Operation Voltage Min.(V) 1.8
Operation Voltage Max.(V) 5.5
Max I/O Pins 23
Pin Count 32
Brown Out Reset (BOR) Programmable BOR
Power On Reset (POR) Yes
Internal Voltage Reference (Bandgap) Yes
Internal Oscillator Yes
Low Power Yes
Number of Comparators 1
ADC Channels 8
Max ADC Sampling Rate (ksps) 15
Max ADC Resolution (bits) 10
Max ADC Sample/Hold (S/H) 1
Temp Sensor Yes
Standard UART 1
SPI™ 2
I2C 1
Max 8 Bit Digital Timers 2
Max 16 Bit Digital Timers 1
Hardware RTCC Yes
Watch Dog Timers (WDT) Yes
Timers 3
Stand alone PWM 6
Capture/Compare/PWM (CCP) 1
Standalone Output Compare/ Standard PWM 6
Input Capture 1
Max # PWM outputs (including complementary outputs) 6
Output Compare Channels 6
USB Interface None
Type of CAN module None
Ethernet None
Integrated Wireless Frequency None
Wireless Technology None
Debug Interface debugWIRE
Temperature Range -40C to +85C

Alternative Part Descriptions

  • MICROCONTROLLER MCU, 8 BIT, ATMEGA, 20MHZ, TQFP-32; Product Range:AVR ATmega Family ATmega328 Series Microcontrollers; CPU Speed:20MHz; Program Memory Size:32KB; RAM Memory Size:2KB; No. of Pins:32Pins; MCU Case Style:TQFP RoHS Compliant: Yes | Newark Electronics

Engineeer Comments

In many a business, one product defines a legacy - for PSC Tupolev, this would be the legendary TU134. In the case of Atmel - initially a small European microcontroller company claiming to offer a C-programmable microcontroller, this honor falls to the ATmega328.

Describing the ATmega328 is not easy - it is, in the end, but another microcontroller similar to the various members of the PIC family. An amusing detail is that Atmel is now owned by Microchip - sometimes, fate takes the oldest turns.

Nevertheless, the ATmega328 is a highly interesting microcontroller due to another twist of history. When Massimo Banzi, Godfather of Arduino, looked for a microcontroller he settled on the ATmega328.

This means that developers can look forward to an almost unlimited amount of libraries - if you must get started quickly, this is a part to use for rapid prototyping. Of course, it also is available in prototype friendly DIP housing, make it ideally suited for Internet of Things prototype microcontroller duties.

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ATMEGA328P-AU?

Additional datasheets, footprints and schematics for ATMEGA328P-AU are listed in our Part Details tab. You can also find the ATMEGA328P-AU image and similar parts on this details page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for ATMEGA328P-AU in the Pricing & Inventory tab next to part details. You can view ATMEGA328P-AU price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does ATMEGA328P-AU fall under?

The ATMEGA328P-AU is listed under ATmega328P.

Can I view similar or alternative parts?

You can view similar parts to ATMEGA328P-AU when available in the ATmega328P range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the ATMEGA328P-AU you can contact the distributor directly for product support, shipping queries etc.

Is the ATMEGA328P-AU RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for ATMEGA328P-AU have stock available?

Authorised distributors including Newark Electronics have stock available or on a lead time for ATMEGA328P-AU.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for ATMEGA328P-AU often in real-time on the comparison pages.

What if I can't find stock of ATMEGA328P-AU?

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