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.

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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package/Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Series
Qualification
Packaging
Microchip Technology 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V
Datasheet
8.219In Stock
Rp48.800
Rp44.764
Rp40.361
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

Microchip Technology 8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V
Datasheet
7.920In Stock
Rp53.020
Rp48.617
Rp43.847
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
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz
Datasheet
1.845In Stock
Cut Tape
Rp38.710
Rp37.426
Reel
Rp32.106
MouseReel Available
Min.: 1
Mult.: 1
: 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

Microchip Technology 8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable
Datasheet
2.255In Stock
Rp47.700
Rp43.847
Rp39.627
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
Microchip Technology 8-bit Microcontrollers - MCU ATMEGA328PB Extend TEMP T&R
Datasheet
13.040In Stock
12.000Expected 01/03/2027
Cut Tape
Rp32.289
Rp31.555
Reel
Rp26.785
MouseReel Available
Min.: 1
Mult.: 1
: 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 + 105 C ATmega328PB AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz
Datasheet
1.449In Stock
Rp40.912
Rp37.426
Rp33.940
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
Microchip Technology 8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp
Datasheet
4.912In Stock
7.000Expected 14/01/2027
Rp30.271
Rp27.702
Rp25.134
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
Microchip Technology 8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP
Datasheet
9.421In Stock
14.250Expected 16/02/2027
Rp29.904
Rp27.336
Rp24.767
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
Microchip Technology 8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable
Datasheet
2.292In Stock
4.250Expected 06/10/2026
Rp33.023
Rp30.271
Rp27.519
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
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHZ
Datasheet
3.900In Stock
Cut Tape
Rp35.224
Rp34.307
Reel
Rp29.170
MouseReel Available
Min.: 1
Mult.: 1
: 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
Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 2KB SRAM 20 MHZ GRN
Datasheet
1.008In Stock
Rp46.599
Rp42.563
Rp38.710
Min.: 1
Mult.: 1
AVR 32 kB 2 kB MLF-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega328 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND
Datasheet
224In Stock
Rp44.397
Rp40.545
Rp36.875
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

Microchip Technology 8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C
Datasheet
390In Stock
Rp55.588
Rp50.818
Rp45.865
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 + 105 C ATmega328P Tube
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND
Datasheet
1.236In Stock
Cut Tape
Rp34.674
Rp34.124
Reel
Rp34.124
Min.: 1
Mult.: 1
: 6.000
AVR 4 kB 512 B VQFN-28 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

Microchip Technology 8-bit Microcontrollers - MCU AVR 4K FLASH 256B EE 20MHZ IND TEMP 1.8V
Datasheet
549In Stock
Rp29.904
Rp27.519
Rp24.584
Min.: 1
Mult.: 1
AVR 4 kB 512 B QFN-28 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega48PA Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz
Datasheet
1.218In Stock
Rp36.142
Rp33.023
Rp30.087
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

Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz
Datasheet
1.702In Stock
Rp46.599
Rp42.746
Rp38.710
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 ATmega88A Tube

Microchip Technology 8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable
Datasheet
505In Stock
Rp39.444
Rp36.142
Rp32.839
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 ATmega88PA Tray

Microchip Technology 8-bit Microcontrollers - MCU AVR 8KB FL 512B EE 1KB SRAM-20MHz 105C
Datasheet
507In Stock
Rp39.260
Rp35.958
Rp32.656
Min.: 1
Mult.: 1
AVR 8 kB 1 kB VQFN-32 20 MHz 10 bit 23 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega88PA Tray

Microchip Technology 8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp QFN
Datasheet
1.251In Stock
Rp28.620
Rp26.235
Rp23.666
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 + 105 C ATmega328PB AEC-Q100 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz
Datasheet
3.702In Stock
Rp40.178
Rp36.875
Rp33.573
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
Microchip Technology 8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz
Datasheet
1.812In Stock
Cut Tape
Rp43.297
Rp42.563
Reel
Rp35.958
MouseReel Available
Min.: 1
Mult.: 1
: 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
Microchip Technology 8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz
Datasheet
3.959In Stock
Cut Tape
Rp43.297
Rp42.563
Reel
Rp35.958
MouseReel Available
Min.: 1
Mult.: 1
: 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

Microchip Technology 8-bit Microcontrollers - MCU 16K Flsh 500B EEPROM 1K SRAM 23 IO Pins
Datasheet
197In Stock
Rp54.121
Rp49.901
Rp45.315
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 ATmega168PA Tube
Microchip Technology 8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND
Datasheet
632In Stock
Rp33.206
Rp30.454
Rp27.702
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