8-bit Microcontrollers - MCU

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	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
8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20MHz 105C ATMEGA168PA-ANR Microchip Technology 1: ¥388.7 1,195In Stock NRND	Mfr. Part # ATMEGA168PA-ANR Mouser Part # 556-ATMEGA168PA-ANR NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 20MHz 105C Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,195In Stock	Cut Tape ¥388.7 ¥382 Reel ¥323.9 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	+ 105 C	ATmega168PA		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V ATMEGA328P-AU Microchip Technology 1: ¥441.8 8,219In Stock NRND	Mfr. Part # ATMEGA328P-AU Mouser Part # 556-ATMEGA328P-AU NRND	Microchip Technology	8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V Learn More about Microchip Technology atmelatmega328	Datasheet	8,219In Stock	¥441.8 ¥405.3 ¥365.4	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 32KB In-system Flash 20MHz 1.8V-5.5V ATMEGA328P-PU Microchip Technology 1: ¥480 7,920In Stock NRND	Mfr. Part # ATMEGA328P-PU Mouser Part # 556-ATMEGA328P-PU NRND	Microchip Technology	8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V Learn More about Microchip Technology atmelatmega328	Datasheet	7,920In Stock	¥480 ¥440.2 ¥397	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 8KB FLSH 512B EE 1KB SRAM-20MHz ATMEGA88A-AUR Microchip Technology 1: ¥350.5 1,845In Stock NRND	Mfr. Part # ATMEGA88A-AUR Mouser Part # 556-ATMEGA88A-AUR NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,845In Stock	Cut Tape ¥350.5 ¥338.8 Reel ¥290.7 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
8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable ATMEGA88PA-PU Microchip Technology 1: ¥431.9 2,255In Stock NRND	Mfr. Part # ATMEGA88PA-PU Mouser Part # 556-ATMEGA88PA-PU NRND	Microchip Technology	8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	2,255In Stock	¥431.9 ¥397 ¥358.8	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 Extend TEMP T&R ATMEGA328PB-ANR Microchip Technology 1: ¥292.3 13,040In Stock 12,000Expected 3/1/2027	Mfr. Part # ATMEGA328PB-ANR Mouser Part # 556-ATMEGA328PB-ANR	Microchip Technology	8-bit Microcontrollers - MCU ATMEGA328PB Extend TEMP T&R Learn More about Microchip Technology atmelatmega328	Datasheet	13,040In Stock 12,000Expected 3/1/2027	Cut Tape ¥292.3 ¥285.7 Reel ¥242.5 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
8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz ATMEGA168PA-AU Microchip Technology 1: ¥370.4 1,449In Stock NRND	Mfr. Part # ATMEGA168PA-AU Mouser Part # 556-ATMEGA168PA-AU NRND	Microchip Technology	8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,449In Stock	¥370.4 ¥338.8 ¥307.3	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 ATMEGA328PB 20MHZ Extd. Temp ATMEGA328PB-AN Microchip Technology 1: ¥274.1 4,912In Stock 7,000Expected 1/14/2027	Mfr. Part # ATMEGA328PB-AN Mouser Part # 556-ATMEGA328PB-AN	Microchip Technology	8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp Learn More about Microchip Technology atmelatmega328	Datasheet	4,912In Stock 7,000Expected 1/14/2027	¥274.1 ¥250.8 ¥227.6	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 20MHZ IND TEMP ATMEGA328PB-AU Microchip Technology 1: ¥270.7 9,421In Stock 14,250Expected 2/16/2027	Mfr. Part # ATMEGA328PB-AU Mouser Part # 556-ATMEGA328PB-AU	Microchip Technology	8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ IND TEMP Learn More about Microchip Technology atmelatmega328	Datasheet	9,421In Stock 14,250Expected 2/16/2027	¥270.7 ¥247.5 ¥224.2	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 1.8V - 5.5V 20MHz 8KB Programmable ATMEGA88PA-AU Microchip Technology 1: ¥299 2,292In Stock 4,250Expected 10/6/2026	Mfr. Part # ATMEGA88PA-AU Mouser Part # 556-ATMEGA88PA-AU	Microchip Technology	8-bit Microcontrollers - MCU 1.8V - 5.5V 20MHz 8KB Programmable Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	2,292In Stock 4,250Expected 10/6/2026	¥299 ¥274.1 ¥249.2	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: ¥318.9 3,900In Stock	Mfr. Part # ATMEGA88PA-AUR Mouser Part # 556-ATMEGA88PA-AUR	Microchip Technology	8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHZ Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	3,900In Stock	Cut Tape ¥318.9 ¥310.6 Reel ¥264.1 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
8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 2KB SRAM 20 MHZ GRN ATMEGA328-MMH Microchip Technology 1: ¥421.9 1,008In Stock NRND	Mfr. Part # ATMEGA328-MMH Mouser Part # 556-ATMEGA328-MMH NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 2KB SRAM 20 MHZ GRN Learn More about Microchip Technology atmelatmega328	Datasheet	1,008In Stock	¥421.9 ¥385.4 ¥350.5	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
8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND ATMEGA328-MU Microchip Technology 1: ¥402 224In Stock NRND	Mfr. Part # ATMEGA328-MU Mouser Part # 556-ATMEGA328-MU NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 32K FLSH 1K EE2K SRAM-20MHz IND Learn More about Microchip Technology atmelatmega328	Datasheet	224In Stock	¥402 ¥367.1 ¥333.9	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 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C ATMEGA328P-PN Microchip Technology 1: ¥503.3 390In Stock NRND	Mfr. Part # ATMEGA328P-PN Mouser Part # 556-ATMEGA328P-PN NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 32K FLSH 2K SRAM 1KB EE-20 MHZ 105C Learn More about Microchip Technology atmelatmega328	Datasheet	390In Stock	¥503.3 ¥460.1 ¥415.3	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
8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND ATMEGA48A-MMHR Microchip Technology 1: ¥313.9 1,236In Stock NRND	Mfr. Part # ATMEGA48A-MMHR Mouser Part # 556-ATMEGA48A-MMHR NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND Learn More about Microchip Technology atmelatmega328	Datasheet	1,236In Stock	Cut Tape ¥313.9 ¥308.9 Reel ¥308.9	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
8-bit Microcontrollers - MCU AVR 4K FLASH 256B EE 20MHZ IND TEMP 1.8V ATMEGA48PA-MMH Microchip Technology 1: ¥270.7 549In Stock NRND	Mfr. Part # ATMEGA48PA-MMH Mouser Part # 556-ATMEGA48PA-MMH NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 4K FLASH 256B EE 20MHZ IND TEMP 1.8V Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	549In Stock	¥270.7 ¥249.2 ¥222.6	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
8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz ATMEGA88A-AU Microchip Technology 1: ¥327.2 1,218In Stock NRND	Mfr. Part # ATMEGA88A-AU Mouser Part # 556-ATMEGA88A-AU NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,218In Stock	¥327.2 ¥299 ¥272.4	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-PU Microchip Technology 1: ¥421.9 1,702In Stock NRND	Mfr. Part # ATMEGA88A-PU Mouser Part # 556-ATMEGA88A-PU NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,702In Stock	¥421.9 ¥387 ¥350.5	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
8-bit Microcontrollers - MCU AVR 8KB FL 512B EE 1KB SRAM-20MHz 105C ATMEGA88PA-MN Microchip Technology 1: ¥355.5 507In Stock NRND	Mfr. Part # ATMEGA88PA-MN Mouser Part # 556-ATMEGA88PA-MN NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 8KB FL 512B EE 1KB SRAM-20MHz 105C Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	507In Stock	¥355.5 ¥325.6 ¥295.7	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
8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp QFN ATMEGA328PB-MN Microchip Technology 1: ¥259.1 1,251In Stock	Mfr. Part # ATMEGA328PB-MN Mouser Part # 556-ATMEGA328PB-MN	Microchip Technology	8-bit Microcontrollers - MCU ATMEGA328PB 20MHZ Extd. Temp QFN Learn More about Microchip Technology atmelatmega328	Datasheet	1,251In Stock	¥259.1 ¥237.5 ¥214.3	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
8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz ATMEGA168A-AU Microchip Technology 1: ¥363.8 3,702In Stock NRND	Mfr. Part # ATMEGA168A-AU Mouser Part # 556-ATMEGA168A-AU NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	3,702In Stock	¥363.8 ¥333.9 ¥304	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: ¥392 1,812In Stock NRND	Mfr. Part # ATMEGA168A-AUR Mouser Part # 556-ATMEGA168A-AUR NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM-20MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	1,812In Stock	Cut Tape ¥392 ¥385.4 Reel ¥325.6 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
8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz ATMEGA168PA-AUR Microchip Technology 1: ¥392 3,959In Stock NRND	Mfr. Part # ATMEGA168PA-AUR Mouser Part # 556-ATMEGA168PA-AUR NRND	Microchip Technology	8-bit Microcontrollers - MCU 16KB FLASH 512B EE 1KB SRAM - 20 MHz Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	3,959In Stock	Cut Tape ¥392 ¥385.4 Reel ¥325.6 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
8-bit Microcontrollers - MCU 16K Flsh 500B EEPROM 1K SRAM 23 IO Pins ATMEGA168PA-PU Microchip Technology 1: ¥490 197In Stock NRND	Mfr. Part # ATMEGA168PA-PU Mouser Part # 556-ATMEGA168PA-PU NRND	Microchip Technology	8-bit Microcontrollers - MCU 16K Flsh 500B EEPROM 1K SRAM 23 IO Pins Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	197In Stock	¥490 ¥451.8 ¥410.3	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
8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND ATMEGA48A-AU Microchip Technology 1: ¥300.6 632In Stock NRND	Mfr. Part # ATMEGA48A-AU Mouser Part # 556-ATMEGA48A-AU NRND	Microchip Technology	8-bit Microcontrollers - MCU AVR 4KB FLSH 256B EE 512B SRAM-20MHz IND Learn More about Microchip Technology atmelatmega328	Datasheet	632In Stock	¥300.6 ¥275.7 ¥250.8	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