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Microcontrollers and Processors / Microcontrollers / ATMEGA328-AU
Datasheets
ATMEGA328-AU by:

IC MCU 8BIT 32KB FLASH 32TQFP

Part Details for ATMEGA328-AU by Microchip Technology Inc

Results Overview of ATMEGA328-AU by Microchip Technology Inc

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Applications Education and Research Aerospace and Defense Agriculture Technology Robotics and Drones

ATMEGA328-AU Information

ATMEGA328-AU by Microchip Technology Inc is a Microcontroller.
Microcontrollers are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Price & Stock for ATMEGA328-AU

Part # Distributor Description Stock Price Buy
DISTI # 75T6093
Newark Mcu, 8Bit, 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, No. Of I/O S:23I/O S, Rohs Compliant: Yes |Microchip ATMEGA328-AU RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 50844
  • 1 $2.3200
  • 10 $2.2700
  • 25 $2.2100
  • 50 $2.1100
  • 100 $2.0100
$2.0100 / $2.3200 Buy Now
DISTI # ATMEGA328-AU-ND
DigiKey IC MCU 8BIT 32KB FLASH 32TQFP Min Qty: 1 Lead time: 4 Weeks Container: Tray 797
In Stock
  • 1 $2.4200
  • 25 $2.2100
  • 100 $2.0100
$2.0100 / $2.4200 Buy Now
DISTI # ATMEGA328-AU
Avnet Americas MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP - Trays (Alt: ATMEGA328-AU) RoHS: Not Compliant Min Qty: 500 Package Multiple: 250 Lead time: 4 Weeks, 0 Days Container: Tray 0
  • 500 $2.0635
  • 1,000 $2.0465
  • 1,500 $2.0295
  • 2,500 $2.0126
  • 5,000 $1.9957
$1.9957 / $2.0635 Buy Now
DISTI # 556-ATMEGA328-AU
Mouser Electronics 8-bit Microcontrollers - MCU AVR 32K FLSH, 1K EE 2K SRAM - 20 MHz RoHS: Compliant 36984
  • 1 $2.3200
  • 25 $2.2100
  • 100 $2.0100
  • 250 $2.0000
$2.0000 / $2.3200 Buy Now
DISTI # V99:2348_07152663
Arrow Electronics MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Date Code: 2329 Americas - 446
  • 1 $2.1450
$2.1450 Buy Now
DISTI # VBF:5286_07152663
Arrow Electronics MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Date Code: 2311 Americas - 250
  • 1 $2.1170
$2.1170 Buy Now
DISTI # ATMEGA328-AU
Microchip Technology Inc 20 MHz, TQFP, Ind Temp, Green, TQFP, Projected EOL: 2039-11-04 COO: Thailand ECCN: EAR99 RoHS: Compliant Lead time: 6 Weeks, 0 Days Container: Tray 272

Alternates Available
  • 1 $2.4200
  • 25 $2.2100
  • 100 $2.0100
  • 1,000 $1.8500
  • 5,000 $1.7700
$1.7700 / $2.4200 Buy Now
Future Electronics ATmega Series 32 KB Flash 2 KB SRAM 20 MHz 8-Bit Microcontroller - TQFP-32 RoHS: Compliant pbFree: Yes Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Container: Tray 688
Tray
  • 1 $2.1600
  • 20 $2.1100
  • 40 $2.0900
  • 125 $2.0500
  • 250 $2.0100
$2.0100 / $2.1600 Buy Now
Onlinecomponents.com MCU - 8-bit AVR RISC - 32KB Flash - 2.5V/3.3V/5V - 32-Pin TQFP - Tray RoHS: Compliant 720 In Stock
12500 Factory Stock
  • 10 $2.5000
  • 100 $1.9900
  • 250 $1.9500
  • 500 $1.9400
  • 1,000 $1.9300
  • 2,500 $1.9200
  • 5,000 $1.9100
  • 7,500 $1.9000
$1.9000 / $2.5000 Buy Now
DISTI # 71239243
Verical MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 15 Package Multiple: 1 Date Code: 2329 Americas - 3751
  • 15 $2.0600
  • 50 $1.9500
  • 100 $1.7700
  • 200 $1.7500
  • 1,000 $1.6700
$1.6700 / $2.0600 Buy Now
DISTI # 79356112
Verical MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 250 Package Multiple: 250 Americas - 750
  • 250 $4.0945
$4.0945 Buy Now
DISTI # 69701124
Verical MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 3 Package Multiple: 1 Date Code: 2329 Americas - 446
  • 3 $2.1450
$2.1450 Buy Now
DISTI # 68481034
Verical MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 62 Package Multiple: 62 Date Code: 2320 Americas - 62
  • 62 $4.5593
$4.5593 Buy Now
DISTI # 87340671
Verical MCU 8-bit AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin TQFP Tray RoHS: Compliant Min Qty: 23 Package Multiple: 1 Americas - 39
  • 23 $3.0800
$3.0800 Buy Now
Future Electronics ATmega Series 32 KB Flash 2 KB SRAM 20 MHz 8-Bit Microcontroller - TQFP-32 Min Qty: 1 Package Multiple: 1 688
null
  • 1 $2.1600
  • 20 $2.1100
  • 40 $2.0900
  • 125 $2.0500
  • 250 $2.0100
$2.0100 / $2.1600 Buy Now
DISTI # ATMEGA328-AU
TME IC: AVR microcontroller, TQFP32, 1.8÷5.5VDC, Ext.inter: 24, Cmp: 1 Min Qty: 1 256
  • 1 $2.6000
  • 5 $2.4500
  • 25 $2.2800
  • 100 $2.1700
$2.1700 / $2.6000 Buy Now
NAC 20 MHz, TQFP, Ind Temp, Green - Package: 32 TQFP 7x7x1mm TRAY RoHS: Compliant Min Qty: 1 Package Multiple: 250 Container: Tray 750
  • 1 $2.6000
  • 100 $2.3500
  • 500 $2.1700
  • 1,000 $2.1100
$2.1100 / $2.6000 Buy Now
DISTI # ATMEGA328-AU
Avnet Silica MCU 8bit ATmega AVR RISC 32KB Flash 25V33V5V 32Pin TQFP (Alt: ATMEGA328-AU) RoHS: Compliant Min Qty: 250 Package Multiple: 250 Lead time: 6 Weeks, 0 Days Silica - 0
Buy Now
DISTI # ATMEGA328-AU
EBV Elektronik MCU 8bit ATmega AVR RISC 32KB Flash 25V33V5V 32Pin TQFP (Alt: ATMEGA328-AU) RoHS: Compliant Min Qty: 250 Package Multiple: 250 Lead time: 5 Weeks, 0 Days EBV - 0
Buy Now
MacroQuest Electronics ISO 9001: 2015, ISO 14001:2015, ISO 45001:2018 3900
  • 1 $2.1400
  • 50 $1.9700
  • 100 $1.8100
$1.8100 / $2.1400 Buy Now
Master Electronics MCU - 8-bit AVR RISC - 32KB Flash - 2.5V/3.3V/5V - 32-Pin TQFP - Tray RoHS: Compliant 720 In Stock
12500 Factory Stock
  • 10 $2.5000
  • 100 $1.9900
  • 250 $1.9500
  • 500 $1.9400
  • 1,000 $1.9300
  • 2,500 $1.9200
  • 5,000 $1.9100
  • 7,500 $1.9000
$1.9000 / $2.5000 Buy Now
Win Source Electronics IC MCU 8BIT 32KB FLASH 32TQFP 25000
  • 16 $3.7296
  • 34 $3.4890
  • 52 $3.3688
  • 74 $3.1281
  • 96 $3.0079
  • 120 $2.8875
$2.8875 / $3.7296 Buy Now

Part Details for ATMEGA328-AU

ATMEGA328-AU CAD Models

  • Part Symbol

    Part Symbol

  • Footprint

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ATMEGA328-AU Part Data Attributes

Parametric Data
ATMEGA328-AU Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
ATMEGA328-AU Microchip Technology Inc IC MCU 8BIT 32KB FLASH 32TQFP
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Package Description TQFP-32
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.31.00.01
Factory Lead Time 4 Weeks
Samacsys Manufacturer Microchip
Has ADC YES
Additional Feature IT ALSO OPERATES 1.8V AT 4 MHZ
Address Bus Width
Bit Size 8
Boundary Scan NO
CPU Family AVR RISC
Clock Frequency-Max 20 MHz
DAC Channels NO
DMA Channels NO
External Data Bus Width
Format FIXED POINT
Integrated Cache NO
JESD-30 Code S-PQFP-G32
JESD-609 Code e3
Length 7 mm
Low Power Mode YES
Moisture Sensitivity Level 3
Number of External Interrupts 2
Number of I/O Lines 23
Number of Serial I/Os 1
Number of Terminals 32
Number of Timers 3
On Chip Data RAM Width 8
On Chip Program ROM Width 16
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
PWM Channels YES
Package Body Material PLASTIC/EPOXY
Package Code TQFP
Package Equivalence Code TQFP32,.35SQ,32
Package Shape SQUARE
Package Style FLATPACK, THIN PROFILE
Qualification Status Not Qualified
RAM (bytes) 2048
RAM (words) 2048
ROM (words) 16384
ROM Programmability FLASH
Seated Height-Max 1.2 mm
Speed 20 MHz
Supply Current-Max 12 mA
Supply Voltage-Max 5.5 V
Supply Voltage-Min 5 V
Supply Voltage-Nom 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish MATTE TIN
Terminal Form GULL WING
Terminal Pitch 0.8 mm
Terminal Position QUAD
Width 7 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC

Alternate Parts for ATMEGA328-AU

This table gives cross-reference parts and alternative options found for ATMEGA328-AU. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ATMEGA328-AU, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
ATMEGA328-AUR Microchip Technology Inc $2.3555 IC MCU 8BIT 32KB FLASH 32TQFP ATMEGA328-AU vs ATMEGA328-AUR

ATMEGA328-AU Related Parts

ATMEGA328-AU Frequently Asked Questions (FAQ)

  • The maximum clock frequency for the ATMEGA328-AU is 20 MHz.

  • The ATMEGA328-AU has 32 KB of flash memory.

  • Yes, the ATMEGA328-AU can operate at 3.3V, but it is not recommended as it is not a specified operating voltage. The recommended operating voltage is 5V.

  • The maximum current that the ATMEGA328-AU can source or sink on its I/O pins is 40 mA.

  • No, the ATMEGA328-AU does not have built-in USB support. It requires an external USB controller to implement USB functionality.

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