8-bit Microcontrollers - MCU

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 76

Applied Filters:

Program Memory Size

Data RAM Size

Package/Case

Maximum Clock Frequency

ADC Resolution

Number of I/Os

Mounting Style

Minimum Operating Temperature

Maximum Operating Temperature

Series

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

8-bit Microcontrollers - MCU ATMEGA328PB IND TEMP T&R

ATMEGA328PB-AUR
Microchip Technology
1: $1.70
9,998In Stock

Mfr. Part No.
ATMEGA328PB-AUR

Mouser Part No
556-ATMEGA328PB-AUR

Microchip Technology

8-bit Microcontrollers - MCU ATMEGA328PB IND TEMP T&R

Learn More

Datasheet

9,998In Stock

Cut Tape

$1.70

$1.56

$1.41

Reel

$1.41

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

32 kB

2 kB

TQFP-32

20 MHz

10 bit

27 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328PB

AEC-Q100

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz

ATMEGA168PA-AUR
Microchip Technology
1: $2.36
3,179In Stock
NRND

Mfr. Part No.
ATMEGA168PA-AUR

Mouser Part No
556-ATMEGA168PA-AUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz

Learn More

Datasheet

3,179In Stock

Cut Tape

$2.36

$2.16

$1.96

Reel

$1.96

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

16 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega168PA

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V

ATMEGA328P-AU
Microchip Technology
1: $2.66
9,998In Stock
NRND

Mfr. Part No.
ATMEGA328P-AU

Mouser Part No
556-ATMEGA328P-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V

Learn More

Datasheet

9,998In Stock

$2.66

$2.44

$2.20

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328P

Tray

8-bit Microcontrollers - MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN

ATMEGA328P-MMH
Microchip Technology
1: $2.78
1,040In Stock
NRND

Mfr. Part No.
ATMEGA328P-MMH

Mouser Part No
556-ATMEGA328P-MMH

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN

Learn More

Datasheet

1,040In Stock

$2.78

$2.55

$2.31

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

VQFN-28

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328P

Tray

8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V

ATMEGA328P-PU
Microchip Technology
1: $2.89
6,757In Stock
NRND

Mfr. Part No.
ATMEGA328P-PU

Mouser Part No
556-ATMEGA328P-PU

NRND

Microchip Technology

8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V

Learn More

Datasheet

Product Comments

6,757In Stock

$2.89

$2.65

$2.39

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

PDIP-28

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

Through Hole

8 bit

- 40 C

+ 85 C

ATmega328P

Tube

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

ATMEGA48A-AUR
Microchip Technology
1: $1.99
2,009In Stock
NRND

Mfr. Part No.
ATMEGA48A-AUR

Mouser Part No
556-ATMEGA48A-AUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

Learn More

Datasheet

2,009In Stock

Cut Tape

$1.99

$1.83

$1.65

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

4 kB

512 B

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega48A

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP

ATMEGA328PB-AU
Microchip Technology
1: $1.63
7,102In Stock
8,000Expected 26/02/2026

Mfr. Part No.
ATMEGA328PB-AU

Mouser Part No
556-ATMEGA328PB-AU

Microchip Technology

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP

Learn More

Datasheet

7,102In Stock

8,000Expected 26/02/2026

$1.63

$1.49

$1.35

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

TQFP-32

20 MHz

10 bit

27 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328PB

AEC-Q100

Tray

8-bit Microcontrollers - MCU ATMEGA328PB IND TEMP QFN/MLF

ATMEGA328PB-MU
Microchip Technology
1: $1.52
6,758In Stock

Mfr. Part No.
ATMEGA328PB-MU

Mouser Part No
556-ATMEGA328PB-MU

Microchip Technology

8-bit Microcontrollers - MCU ATMEGA328PB IND TEMP QFN/MLF

Learn More

Datasheet

6,758In Stock

$1.52

$1.39

$1.26

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

QFN-32

20 MHz

10 bit

27 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328PB

AEC-Q100

Tray

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

ATMEGA168A-AU
Microchip Technology
1: $2.19
1,748In Stock
NRND

Mfr. Part No.
ATMEGA168A-AU

Mouser Part No
556-ATMEGA168A-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

1,748In Stock

$2.19

$2.01

$1.83

Min.: 1
Mult.: 1

AVR

16 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega168A

Tray

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

ATMEGA168A-AUR
Microchip Technology
1: $2.36
2,000In Stock
NRND

Mfr. Part No.
ATMEGA168A-AUR

Mouser Part No
556-ATMEGA168A-AUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

2,000In Stock

Cut Tape

$2.36

$2.16

$1.96

Reel

$1.96

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

16 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega168A

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

ATMEGA168A-MUR
Microchip Technology
1: $2.27
5,472In Stock
NRND

Mfr. Part No.
ATMEGA168A-MUR

Mouser Part No
556-ATMEGA168A-MUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

5,472In Stock

Cut Tape

$2.27

$2.09

$1.87

Reel

$1.87

MouseReel Available

Min.: 1
Mult.: 1

Reel: 6,000

AVR

16 kB

1 kB

QFN-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega168A

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

ATMEGA168A-PU
Microchip Technology
1: $2.94
2,239In Stock
NRND

Mfr. Part No.
ATMEGA168A-PU

Mouser Part No
556-ATMEGA168A-PU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

2,239In Stock

$2.94

$2.71

$2.45

Min.: 1
Mult.: 1

AVR

16 kB

1 kB

PDIP-28

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

Through Hole

8 bit

- 40 C

+ 85 C

ATmega168A

Tube

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20MHz 105C

ATMEGA168PA-AN
Microchip Technology
1: $2.23
323In Stock
NRND

Mfr. Part No.
ATMEGA168PA-AN

Mouser Part No
556-ATMEGA168PA-AN

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20MHz 105C

Learn More

Datasheet

323In Stock

$2.23

$2.04

$1.85

Min.: 1
Mult.: 1

AVR

16 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

ATmega168PA

Tray

8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz

ATMEGA168PA-AU
Microchip Technology
1: $2.23
3,020In Stock
NRND

Mfr. Part No.
ATMEGA168PA-AU

Mouser Part No
556-ATMEGA168PA-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz

Learn More

Datasheet

3,020In Stock

$2.23

$2.04

$1.85

Min.: 1
Mult.: 1

AVR

16 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega168PA

Tray

8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND

ATMEGA328-MU
Microchip Technology
1: $2.42
336In Stock
NRND

Mfr. Part No.
ATMEGA328-MU

Mouser Part No
556-ATMEGA328-MU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND

Learn More

Datasheet

336In Stock

$2.42

$2.21

$2.01

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

MLF-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega328

Tray

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

ATMEGA48A-AU
Microchip Technology
1: $1.81
886In Stock
NRND

Mfr. Part No.
ATMEGA48A-AU

Mouser Part No
556-ATMEGA48A-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

Learn More

Datasheet

886In Stock

$1.81

$1.66

$1.51

Min.: 1
Mult.: 1

AVR

4 kB

512 B

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega48A

Tray

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

ATMEGA48A-MU
Microchip Technology
1: $1.40
532In Stock
NRND

Mfr. Part No.
ATMEGA48A-MU

Mouser Part No
556-ATMEGA48A-MU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND

Learn More

Datasheet

532In Stock

$1.40

$1.28

$1.16

Min.: 1
Mult.: 1

AVR

4 kB

512 B

QFN-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega48A

Tray

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

ATMEGA88A-AU
Microchip Technology
1: $1.97
1,965In Stock
NRND

Mfr. Part No.
ATMEGA88A-AU

Mouser Part No
556-ATMEGA88A-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

1,965In Stock

$1.97

$1.80

$1.64

Min.: 1
Mult.: 1

AVR

8 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega88A

Tray

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

ATMEGA88A-AUR
Microchip Technology
1: $2.11
2,463In Stock
NRND

Mfr. Part No.
ATMEGA88A-AUR

Mouser Part No
556-ATMEGA88A-AUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

2,463In Stock

Cut Tape

$2.11

$1.93

$1.75

Reel

$1.75

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

8 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega88A

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

ATMEGA88A-MMH
Microchip Technology
1: $1.66
1,182In Stock
NRND

Mfr. Part No.
ATMEGA88A-MMH

Mouser Part No
556-ATMEGA88A-MMH

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz

Learn More

Datasheet

1,182In Stock

$1.66

$1.54

$1.39

Min.: 1
Mult.: 1

AVR

8 kB

1 kB

QFN-28

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega88A

Tray

8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable

ATMEGA88PA-AU
Microchip Technology
1: $1.80
1,372In Stock
NRND

Mfr. Part No.
ATMEGA88PA-AU

Mouser Part No
556-ATMEGA88PA-AU

NRND

Microchip Technology

8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable

Learn More

Datasheet

1,372In Stock

$1.80

$1.65

$1.50

Min.: 1
Mult.: 1

AVR

8 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega88PA

Tray

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHZ

ATMEGA88PA-AUR
Microchip Technology
1: $1.92
997In Stock
NRND

Mfr. Part No.
ATMEGA88PA-AUR

Mouser Part No
556-ATMEGA88PA-AUR

NRND

Microchip Technology

8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHZ

Learn More

Datasheet

997In Stock

Cut Tape

$1.92

$1.77

$1.59

Reel

$1.59

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

AVR

8 kB

1 kB

TQFP-32

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 85 C

ATmega88PA

Reel, Cut Tape, MouseReel

8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable

ATMEGA88PA-PU
Microchip Technology
1: $2.60
1,231In Stock
NRND

Mfr. Part No.
ATMEGA88PA-PU

Mouser Part No
556-ATMEGA88PA-PU

NRND

Microchip Technology

8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable

Learn More

Datasheet

1,231In Stock

$2.60

$2.39

$2.16

Min.: 1
Mult.: 1

AVR

8 kB

1 kB

PDIP-28

20 MHz

10 bit

23 I/O

1.8 V

5.5 V

Through Hole

8 bit

- 40 C

+ 85 C

ATmega88PA

Tube

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp

ATMEGA328PB-AN
Microchip Technology
1: $1.65
4,817In Stock
3,250Expected 09/04/2026

Mfr. Part No.
ATMEGA328PB-AN

Mouser Part No
556-ATMEGA328PB-AN

Microchip Technology

8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp

Learn More

Datasheet

4,817In Stock

3,250Expected 09/04/2026

$1.65

$1.51

$1.37

Min.: 1
Mult.: 1

AVR

32 kB

2 kB

TQFP-32

20 MHz

10 bit

27 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

ATmega328PB

AEC-Q100

Tray

8-bit Microcontrollers - MCU ATMEGA328PB QFN/MFL T&R

ATMEGA328PB-MNR
Microchip Technology
1: $1.65
2,087In Stock
6,000Expected 05/03/2026

Mfr. Part No.
ATMEGA328PB-MNR

Mouser Part No
556-ATMEGA328PB-MNR

Microchip Technology

8-bit Microcontrollers - MCU ATMEGA328PB QFN/MFL T&R

Learn More

Datasheet

2,087In Stock

6,000Expected 05/03/2026

Cut Tape

$1.65

$1.51

$1.37

Reel

$1.37

MouseReel Available

Min.: 1
Mult.: 1

Reel: 6,000

AVR

32 kB

2 kB

QFN-32

20 MHz

10 bit

27 I/O

1.8 V

5.5 V

SMD/SMT

8 bit

- 40 C

+ 105 C

ATmega328PB

AEC-Q100

Reel, Cut Tape, MouseReel

ATmega328 8-Bit AVR MCUs

Customer Service Office

Company

Resources

Support