32-bit Microcontrollers - MCU

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B-Series AT32UC3 AVR 32-Bit MCUs

Microchip Technology B-Series AT32UC3 AVR 32-Bit MCUs are designed for high data throughput and outstanding computing performance in space-constrained applications. It is especially well-suited for applications like USB Human Interface devices, USB stick gateway, biometrics, bridging, industrial control, and low-power portable applications. The series features high connectivity with a USB device and host. This feature, combined with a fast flash and large internal SRAM, makes it a perfect fit for data-intensive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package/Case	Core	Program Memory Size	Data RAM Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3B0256-A2UT Microchip Technology 1: Rp166.948,60 2.532In Stock	Mfr. Part No. AT32UC3B0256-A2UT Mouser Part No 556-AT32UC3B0256A2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	2.532In Stock	Rp166.948,60 Rp151.721,42 Rp137.778,46	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	TQFP-64	AVR	64 kB	32 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 512KB Flash AT32UC3B1512-Z1UT Microchip Technology 1: Rp194.100,68 374In Stock	Mfr. Part No. AT32UC3B1512-Z1UT Mouser Part No 556-AT32UC3B1512Z1UT	Microchip Technology	32-bit Microcontrollers - MCU 512KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	374In Stock	Rp194.100,68 Rp176.305,06 Rp160.160,58	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	QFN-48	AVR	512 kB	96 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3B1256-Z1UT Microchip Technology 1: Rp158.325,98 343In Stock	Mfr. Part No. AT32UC3B1256-Z1UT Mouser Part No 556-AT32UC3B1256Z1UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	343In Stock	Rp158.325,98 Rp143.832,64 Rp130.440,06	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	QFN-48	AVR	256 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 256KB, 64QFP 85deg. Green AT32UC3B0256-A2UR Microchip Technology 1: Rp169.700,50 325In Stock	Mfr. Part No. AT32UC3B0256-A2UR Mouser Part No 556-AT32UC3B0256A2UR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 64QFP 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	325In Stock	Cut Tape Rp169.700,50 Rp164.380,16 Reel Rp139.796,52 MouseReel Available	Min.: 1 Mult.: 1 : 1.500	AT32UC3B0	SMD/SMT	TQFP-64	AVR	256 kB	32 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 32-bit 128KB Flash AT32UC3B1128-Z1UT Microchip Technology 1: Rp139.062,68 153In Stock	Mfr. Part No. AT32UC3B1128-Z1UT Mouser Part No 556-AT32UC3B1128Z1UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	153In Stock	Rp139.062,68 Rp126.587,40 Rp118.148,24 Rp117.964,78	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	QFN-48	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 64KB Flash AT32UC3B164-AUT Microchip Technology 1: Rp117.230,94 227In Stock	Mfr. Part No. AT32UC3B164-AUT Mouser Part No 556-AT32UC3B164-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 64KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	227In Stock	Rp117.230,94 Rp106.590,26 Rp99.618,78 Rp99.435,32	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	TQFP-48	AVR	64 kB	16 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 512KB Flash AT32UC3B0512-A2UT Microchip Technology 1: Rp204.924,82 1.466In Stock	Mfr. Part No. AT32UC3B0512-A2UT Mouser Part No 556-AT32UC3B0512A2UT	Microchip Technology	32-bit Microcontrollers - MCU 512KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	1.466In Stock	Rp204.924,82 Rp186.028,44 Rp168.783,20	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	TQFP-64	AVR	512 kB	96 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 128KB Flash AT32UC3B1128-AUT Microchip Technology 1: Rp139.062,68 210In Stock	Mfr. Part No. AT32UC3B1128-AUT Mouser Part No 556-AT32UC3B1128-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	210In Stock	Rp139.062,68 Rp126.587,40 Rp114.662,50	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	TQFP-48	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 512KB Flash AT32UC3B0512-A2UR Microchip Technology 1: Rp207.860,18 685In Stock	Mfr. Part No. AT32UC3B0512-A2UR Mouser Part No 556-AT32UC3B0512A2UR	Microchip Technology	32-bit Microcontrollers - MCU 512KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	685In Stock	Cut Tape Rp207.860,18 Rp200.705,24 Reel Rp171.168,18 MouseReel Available	Min.: 1 Mult.: 1 : 1.500	AT32UC3B0	SMD/SMT	TQFP-64	AVR	512 kB	96 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 512KB Flash AT32UC3B0512-Z2UT Microchip Technology 1: Rp204.924,82 579In Stock	Mfr. Part No. AT32UC3B0512-Z2UT Mouser Part No 556-AT32UC3B0512Z2UT	Microchip Technology	32-bit Microcontrollers - MCU 512KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	579In Stock	Rp204.924,82 Rp186.028,44 Rp168.783,20	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	QFN-64	AVR	512 kB	96 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 64KB Flash AT32UC3B064-Z2UT Microchip Technology 1: Rp124.018,96 820In Stock	Mfr. Part No. AT32UC3B064-Z2UT Mouser Part No 556-AT32UC3B064-Z2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 64KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	820In Stock	Rp124.018,96 Rp112.644,44 Rp101.636,84	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	QFN-64	AVR	64 kB	16 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit AT32UC3B1256-AUT Microchip Technology 1: Rp158.325,98 1.113In Stock	Mfr. Part No. AT32UC3B1256-AUT Mouser Part No 556-AT32UC3B1256-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit Learn More about Microchip Technology microchip b series mcus	Datasheet	1.113In Stock	Rp158.325,98 Rp143.832,64 Rp130.440,06	Min.: 1 Mult.: 1	AT32UC3B1	SMD/SMT	TQFP-48	AVR	256 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 128KB Flash AT32UC3B0128-A2UT Microchip Technology 1: Rp146.584,54 175In Stock	Mfr. Part No. AT32UC3B0128-A2UT Mouser Part No 556-AT32UC3B0128A2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	175In Stock	Rp146.584,54 Rp133.375,42 Rp120.716,68	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	TQFP-64	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3B0256-Z2UT Microchip Technology 1: Rp166.948,60 384On Order	Mfr. Part No. AT32UC3B0256-Z2UT Mouser Part No 556-AT32UC3B0256Z2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	384On Order On Order Ship Dates Mfr. No: AT32UC3B0256-Z2UT Stock: 0 On Order: 124 Expected 26/10/2026 260 TBD Factory Lead Time: 25 Weeks	Rp166.948,60 Rp151.721,42 Rp137.778,46	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	QFN-64	AVR	256 kB	32 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 128KB, 64QFN 85deg. Green AT32UC3B0128-A2UR Microchip Technology 1.500: Rp123.285,12 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3B0128-A2UR Mouser Part No 556-AT32UC3B0128A2UR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 64QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel Rp123.285,12	Min.: 1.500 Mult.: 1.500 : 1.500	AT32UC3B0	SMD/SMT	TQFP-64	AVR	128 kB	32 kB	32 bit		60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128KB, 64QFN 85deg. Green AT32UC3B0128-Z2UR Microchip Technology 4.000: Rp123.285,12 Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. AT32UC3B0128-Z2UR Mouser Part No 556-AT32UC3B0128Z2UR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 64QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel Rp123.285,12	Min.: 4.000 Mult.: 4.000 : 4.000	AT32UC3B0	SMD/SMT	QFN-64	AVR	128 kB	32 kB	32 bit		60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 32-bit 128KB Flash AT32UC3B0128-Z2UT Microchip Technology 260: Rp120.716,68 Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. AT32UC3B0128-Z2UT Mouser Part No 556-AT32UC3B0128Z2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 25 Weeks	Rp120.716,68	Min.: 260 Mult.: 260	AT32UC3B0	SMD/SMT	QFN-64	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 256KB, 64QFN 85deg. Green AT32UC3B0256-Z2UR Microchip Technology 4.000: Rp139.796,52 Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. AT32UC3B0256-Z2UR Mouser Part No 556-AT32UC3B0256Z2UR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 64QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel Rp139.796,52	Min.: 4.000 Mult.: 4.000 : 4.000	AT32UC3B0	SMD/SMT	QFN-64	AVR	256 kB	32 kB	32 bit		60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 512KB Flash AT32UC3B0512-Z2UR Microchip Technology 4.000: Rp171.168,18 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3B0512-Z2UR Mouser Part No 556-AT32UC3B0512Z2UR	Microchip Technology	32-bit Microcontrollers - MCU 512KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel Rp171.168,18	Min.: 4.000 Mult.: 4.000 : 4.000	AT32UC3B0	SMD/SMT	QFN-64	AVR	512 kB	96 kB	32 bit		60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 64KB, 64QFP 85deg. Green AT32UC3B064-A2UR Microchip Technology 1.500: Rp104.572,20 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3B064-A2UR Mouser Part No 556-AT32UC3B064-A2UR	Microchip Technology	32-bit Microcontrollers - MCU 64KB, 64QFP 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel Rp104.572,20	Min.: 1.500 Mult.: 1.500 : 1.500	AT32UC3B0	SMD/SMT	TQFP-64	AVR	64 kB	16 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 32-bit 64KB Flash AT32UC3B064-A2UT Microchip Technology 1: Rp124.018,96 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3B064-A2UT Mouser Part No 556-AT32UC3B064-A2UT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 64KB Flash Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Rp124.018,96 Rp112.644,44 Rp101.636,84	Min.: 1 Mult.: 1	AT32UC3B0	SMD/SMT	TQFP-64	AVR	64 kB	16 kB	32 bit	10 bit	60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 64KB, 64QFN 85deg. Green AT32UC3B064-Z2UR Microchip Technology 4.000: Rp104.572,20 Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. AT32UC3B064-Z2UR Mouser Part No 556-AT32UC3B064-Z2UR	Microchip Technology	32-bit Microcontrollers - MCU 64KB, 64QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 25 Weeks	Reel Rp104.572,20	Min.: 4.000 Mult.: 4.000 : 4.000	AT32UC3B0	SMD/SMT	QFN-64	AVR	64 kB	16 kB	32 bit		60 MHz	44 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128KB, 48QFN 85deg. Green AT32UC3B1128-AUR Microchip Technology 2.500: Rp116.497,10 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. AT32UC3B1128-AUR Mouser Part No 556-AT32UC3B1128-AUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 48QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel Rp116.497,10	Min.: 2.500 Mult.: 2.500 : 2.500	AT32UC3B1	SMD/SMT	TQFP-48	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128KB, 48QFN 85deg. Green AT32UC3B1128-Z1UR Microchip Technology 4.000: Rp116.497,10 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. AT32UC3B1128-Z1UR Mouser Part No 556-AT32UC3B1128Z1UR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 48QFN 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel Rp116.497,10	Min.: 4.000 Mult.: 4.000 : 4.000	AT32UC3B1	SMD/SMT	QFN-48	AVR	128 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 256KB, 48TQFP 85deg. Green AT32UC3B1256-AUR Microchip Technology 2.500: Rp132.458,12 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. AT32UC3B1256-AUR Mouser Part No 556-AT32UC3B1256-AUR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 48TQFP 85deg. Green Learn More about Microchip Technology microchip b series mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel Rp132.458,12	Min.: 2.500 Mult.: 2.500 : 2.500	AT32UC3B1	SMD/SMT	TQFP-48	AVR	256 kB	32 kB	32 bit	10 bit	60 MHz	28 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel

B-Series AT32UC3 AVR 32-Bit MCUs

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