It appears you have JavaScript disabled within your browser. Some functions on this page will not work unless you log in.

See an Error?

ATMEGA328-AU

Name: Microchip ATMEGA328-AU
Brand: Microchip Technology
SKU: 556-ATMEGA328-AU
Price: 2.42 USD
Availability: InStock

Images are for reference only
See Product Specifications

Mouser #:

556-ATMEGA328-AU

Mfr. #:

ATMEGA328-AU

Description:

8-bit Microcontrollers - MCU AVR 32K FLSH, 1K EE 2K SRAM - 20 MHz

View in Development Tools Selector

Lifecycle:

NRND: Not recommended for new designs.

Datasheet:

ATMEGA328-AU Datasheet (PDF)

ECAD Model:

Download the free Library Loader to convert this file for your ECAD Tool. Learn more about ECAD Model.

More Information

Learn more about Microchip Technology ATMEGA328-AU

Add To Project

Add Notes

In Stock: 45,262

Stock:: 45,262 Can Ship Immediately

Shipping Restricted
Factory Lead-Time:: 89 Weeks Estimated factory production time for quantities greater than shown.

Minimum: 1 Multiples: 1

Enter Quantity:

Unit Price:

$-.--

Ext. Price:

$-.--

Pricing (USD)

Qty.	Unit Price	Ext. Price
	$2.42	$2.42
	$2.21	$55.25
	$2.01	$201.00
	$2.00	$2,000.00

Alternative Packaging

Mfr. Part #:

ATMEGA328-AUR

Packaging:

Reel, Cut Tape, MouseReel

Availability:

In Stock

Price:

$2.51

Min:

Possible Replacement

Mfr.:

Microchip Technology

Mfr. #:

ATMEGA328PB-AU

Description:

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP

Compare With Current Part

Product Info.

Image:

Mouser Part #:

556-ATMEGA328-AU

556-ATMEGA328PB-AU

Mfr.'s Part #:

ATMEGA328-AU

ATMEGA328PB-AU

Manufacturer:

Microchip Technology

Description:

8-bit Microcontrollers - MCU AVR 32K FLSH, 1K EE 2K SRAM - 20 MHz

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP

Lifecycle:

Not Recommended for New Designs

Datasheet:

Datasheet

RoHS:

Details

Specifications

ADC Resolution:

10 bit

Brand:

Microchip Technology

Core:

AVR

Data Bus Width:

8 bit

Data RAM Size:

2 kB

Data RAM Type:

SRAM

Data ROM Size:

1 kB

Data ROM Type:

EEPROM

Interface Type:

I2C, SPI, USART

2-Wire, I2C, SPI, USART

Maximum Clock Frequency:

20 MHz

Maximum Operating Temperature:

+ 85 C

Minimum Operating Temperature:

- 40 C

Moisture Sensitive:

Yes

Mounting Style:

SMD/SMT

Number of ADC Channels:

8 Channel

Number of I/Os:

23 I/O

Number of Timers/Counters:

3 Timer

Package / Case:

TQFP-32

Packaging:

Tray

Processor Series:

megaAVR

Product:

MCUs

Product Type:

8-bit Microcontrollers - MCU

Program Memory Size:

32 kB

Program Memory Type:

Flash

Series:

ATmega328

ATmega328PB

Standard Pack Qty:

250

Subcategory:

Microcontrollers - MCU

Supply Voltage - Max:

5.5 V

Supply Voltage - Min:

1.8 V

Tradename:

AVR

DAC Resolution:

No DAC

Development Kit:

ATMEGA328PB-XMINI

Qualification:

AEC-Q100

Watchdog Timers:

Watchdog Timer

Ordering Information

Stock:

45,262 Can Ship Immediately

39,001 Can Ship Immediately

On Order:

29350

Factory Lead-Time:

89 Weeks

Weeks

Buy:

Unit Price:

$-.--

Ext. Price:

$-.--

Unit Price:

$-.--

Ext. Price:

$-.--

Pricing:

Qty.	Unit Price	Ext. Price
	$2.42	$2.42
	$2.21	$55.25
	$2.01	$201.00
	$2.00	$2,000.00

Qty.	Unit Price	Ext. Price
	$1.70	$1.70
	$1.56	$39.00
	$1.42	$142.00

Specifications

Products found:

To show similar products, select at least one checkbox

Product Attribute	Attribute Value	Select Attribute
Manufacturer:	Microchip
Product Category:	8-bit Microcontrollers - MCU
RoHS:	Details
Core:	AVR
Program Memory Size:	32 kB
Data RAM Size:	2 kB
Package / Case:	TQFP-32
Maximum Clock Frequency:	20 MHz
ADC Resolution:	10 bit
Number of I/Os:	23 I/O
Supply Voltage - Min:	1.8 V
Supply Voltage - Max:	5.5 V
Mounting Style:	SMD/SMT
Data Bus Width:	8 bit
Minimum Operating Temperature:	- 40 C
Maximum Operating Temperature:	+ 85 C
Series:	ATmega328
Packaging:	Tray
Brand:	Microchip Technology
Data RAM Type:	SRAM
Data ROM Size:	1 kB
Data ROM Type:	EEPROM
Interface Type:	I2C, SPI, USART
Moisture Sensitive:	Yes
Number of ADC Channels:	8 Channel
Number of Timers/Counters:	3 Timer
Processor Series:	megaAVR
Product:	MCUs
Product Type:	8-bit Microcontrollers - MCU
Program Memory Type:	Flash
Factory Pack Quantity:	250
Subcategory:	Microcontrollers - MCU
Tradename:	AVR
Unit Weight:	0.002568 oz

Products found:

To show similar products, select at least one checkbox

Select at least one checkbox above to show similar products in this category.

Attributes selected: 0

Documents (12)

Filter Document:

Datasheet

ATMEGA328-AU Datasheet (PDF)

DTS

View in Development Tools Selector

Errata

Models

ATMEGA328-AU Symbol & Footprint by SnapEDA

PCN

Show All

Show Less

Environmental Documents

This functionality requires JavaScript to be enabled.

Product Compliance

USHTS:: 8542310001
CNHTS:: 8542319090
CAHTS:: 8542310000
JPHTS:: 8542310324
KRHTS:: 8542311000
TARIC:: 8542319000
MXHTS:: 8542310399
ECCN:: EAR99

Microchip Technology Functional Safety Solutions offer robustness, reliability, and safety to end-products. In some application segments, these requirements are formalized and mandatory, while in others, this is implemented to differentiate the product and take the step from a good product to an excellent product. The standards for functional safety depend on the market that is targeted. Many standards support multiple levels of rigorousness, which are applied depending on the likelihood and severity of the hazard. The methods of addressing hazards range from detecting single failures and putting the system into a safe state, to full redundancy where failures should not only be detected but also corrected without any interruption or degradation of service.

ATmega328 8-Bit AVR MCUs

Microchip Technology ATmega328 8-Bit AVR MCUs are low-power, CMOS 8-bit microcontrollers based on the AVR® enhanced RISC architecture. The devices execute instructions in a single clock cycle to achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz. This allows for optimizing power consumption versus processing speed.

Associated Products

Image	Mfr. Part #	Description	Stock
No Image	A000073	A000073 Development Boards & Kits - AVR Arduino Uno Rev 3 SMD Stock: 1,373	1,373
No Image	SHIELD-EKG-EMG	SHIELD-EKG-EMG Daughter Cards & OEM Boards EKG / EMG SHIELD FOR DUINOMITE Stock: 63	63
No Image	ATSTK600-RC29	ATSTK600-RC29 Sockets & Adapters STK600 Socket/Adaptr TQFP32 routing card Stock: 1	1

Customers Also Bought

Image	Mfr. Part #	Description	Stock
No Image	DS1307ZN+T&R	DS1307ZN+T&R Real Time Clock 64 x 8, Serial, I C Real-Time Clock Stock: 11,464	11,464
No Image	AZ1117IH-5.0TRG1	AZ1117IH-5.0TRG1 LDO Voltage Regulators LDO BJT HiCurr 1.35A 10Hz to 10KHz Stock: 171,806	171,806
No Image	1935161	1935161 Fixed Terminal Blocks PT 1.5/2-5.0-H Stock: 40,721	40,721
No Image	MCP1801T-3002I/OT	MCP1801T-3002I/OT LDO Voltage Regulators Hi PSRR 150 mA LDO Vin 10V maxVout 3.0V Stock: 4,531	4,531
No Image	DMP4025LSD-13	DMP4025LSD-13 MOSFET P-Ch Enh Mode FET 40V 25mOhm -7.6A Stock: 34,637	34,637
No Image	L78L05ACUTR	L78L05ACUTR Linear Voltage Regulators 5.0V 0.1A Positive Stock: 69,630	69,630
No Image	ADS1115IDGSR	ADS1115IDGSR Analog to Digital Converters - ADC 16B ADC w/ Int MUX PGA Comp Osc & Ref Stock: 4,018	4,018
No Image	LTST-C191TBKT	LTST-C191TBKT Standard LEDs - SMD Blue Clear 470nm Stock: 96,093	96,093
No Image	1001824	1001824 Anti-Static Control Products Static Shield Bag, 1000 Series Metal-In, 18X24, 100 Ea Stock: 15	15
No Image	ATMEGA328P-PU	ATMEGA328P-PU 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V Stock: 56,671	56,671