32-bit Microcontrollers - MCU

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A0/A1-Series AT32UC3 AVR 32-Bit MCUs

Microchip Technology A0/A1-Series AT32UC3 AVR 32-Bit MCUs are designed for high data throughput, low-power consumption, and outstanding computing performance. The Microchip AVR® UC3 A0 and A1 Series feature high connectivity with USB device and host, Ethernet MAC, and SDRAM interfaces. These communication features, fast flash, and large internal SRAM suit it ideally for data-intensive applications. Microchip Technology A0/A1-Series AT32UC3 AVR 32-Bit MCUs are also excellent for applications requiring Ethernet or USB connectivity and high computing performance, including audio, biometrics, communication, industrial control, and web servers.

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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 128KB Flash AT32UC3A1128-AUT Microchip Technology 1: Rp183.093,08 254In Stock	Mfr. Part No. AT32UC3A1128-AUT Mouser Part No 556-AT32UC3A1128-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	254In Stock	Rp183.093,08 Rp166.031,30 Rp150.437,20	Min.: 1 Mult.: 1	AT32UC3A1	SMD/SMT	TQFP-100	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 128KB Flash AT32UC3A0128-ALUT Microchip Technology 1: Rp204.007,52 77In Stock	Mfr. Part No. AT32UC3A0128-ALUT Mouser Part No 556-AT32UC3A0128ALUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 128KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	77In Stock	Rp204.007,52 Rp185.478,06 Rp168.049,36	Min.: 1 Mult.: 1	AT32UC3A0	SMD/SMT	LQFP-144	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3A0256-ALUT Microchip Technology 1: Rp250.422,90 1.276In Stock	Mfr. Part No. AT32UC3A0256-ALUT Mouser Part No 556-AT32UC3A0256ALUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	1.276In Stock	Rp250.422,90 Rp227.857,32 Rp206.209,04	Min.: 1 Mult.: 1	AT32UC3A0	SMD/SMT	LQFP-144	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 512KB Flash AT32UC3A0512-ALUT Microchip Technology 1: Rp268.952,36 2.383In Stock	Mfr. Part No. AT32UC3A0512-ALUT Mouser Part No 556-AT32UC3A0512ALUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 512KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	2.383In Stock	Rp268.952,36 Rp244.368,72 Rp221.619,68	Min.: 1 Mult.: 1	AT32UC3A0	SMD/SMT	LQFP-144	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 512KB, 100LQFP 85deg. Green AT32UC3A1512-AUR Microchip Technology 1: Rp268.952,36 1.165In Stock	Mfr. Part No. AT32UC3A1512-AUR Mouser Part No 556-AT32UC3A1512-AUR	Microchip Technology	32-bit Microcontrollers - MCU 512KB, 100LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	1.165In Stock	Cut Tape Rp268.952,36 Rp259.779,36 Reel Rp221.069,30 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	AT32UC3A1	SMD/SMT	TQFP-100	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3A1256-AUT Microchip Technology 1: Rp224.555,04 765In Stock	Mfr. Part No. AT32UC3A1256-AUT Mouser Part No 556-AT32UC3A1256-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	765In Stock	Rp224.555,04 Rp204.007,52 Rp184.744,22	Min.: 1 Mult.: 1	AT32UC3A1	SMD/SMT	TQFP-100	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 128KB, 144LQFP 85deg. Green AT32UC3A0128-ALUR Microchip Technology 1: Rp207.676,72 894In Stock	Mfr. Part No. AT32UC3A0128-ALUR Mouser Part No 556-AT32UC3A0128ALUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	894In Stock	Cut Tape Rp207.676,72 Rp200.521,78 Reel Rp170.801,26 MouseReel Available	Min.: 1 Mult.: 1 : 800	AT32UC3A0	SMD/SMT	LQFP-144	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 512KB, 144LQFP 85deg. Green AT32UC3A0512-ALUR Microchip Technology 1: Rp272.621,56 105In Stock 800Expected 28/12/2026	Mfr. Part No. AT32UC3A0512-ALUR Mouser Part No 556-AT32UC3A0512ALUR	Microchip Technology	32-bit Microcontrollers - MCU 512KB, 144LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	105In Stock 800Expected 28/12/2026	Cut Tape Rp272.621,56 Rp263.448,56 Reel Rp224.188,12 MouseReel Available	Min.: 1 Mult.: 1 : 800	AT32UC3A0	SMD/SMT	LQFP-144	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 512KB, 144FFBGA Ind AT32UC3A0512-CTUT Microchip Technology 1: Rp290.233,72 50In Stock	Mfr. Part No. AT32UC3A0512-CTUT Mouser Part No 556-AT32UC3A0512CTUT	Microchip Technology	32-bit Microcontrollers - MCU 512KB, 144FFBGA Ind Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	50In Stock	Rp290.233,72 Rp263.998,94 Rp239.231,84	Min.: 1 Mult.: 1	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 128KB, 100LQFP 85deg. Green AT32UC3A1128-AUR Microchip Technology 1.000: Rp153.739,48 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A1128-AUR Mouser Part No 556-AT32UC3A1128-AUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 100LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel Rp153.739,48	Min.: 1.000 Mult.: 1.000 : 1.000	AT32UC3A1	SMD/SMT	TQFP-100	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 256KB, 100LQFP 85deg. Green AT32UC3A1256-AUR Microchip Technology 1: Rp228.224,24 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A1256-AUR Mouser Part No 556-AT32UC3A1256-AUR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 100LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 11 Weeks	Cut Tape Rp228.224,24 Rp220.518,92 Reel Rp188.046,50 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	AT32UC3A1	SMD/SMT	TQFP-100	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. AT32UC3A0128-CTUR Microchip Technology 2.000: Rp173.920,08 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3A0128-CTUR Mouser Part No 556-AT32UC3A0128CTUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel Rp173.920,08	Min.: 2.000 Mult.: 2.000 : 2.000	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. AT32UC3A0128-CTUT Microchip Technology 168: Rp170.801,26 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. AT32UC3A0128-CTUT Mouser Part No 556-AT32UC3A0128CTUT	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Rp170.801,26	Min.: 168 Mult.: 168	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	128 kB	32 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 256KB, 144LQFP 85deg. Green AT32UC3A0256-ALUR Microchip Technology 800: Rp209.327,86 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. AT32UC3A0256-ALUR Mouser Part No 556-AT32UC3A0256ALUR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 13 Weeks	Reel Rp209.327,86	Min.: 800 Mult.: 800 : 800	AT32UC3A0	SMD/SMT	LQFP-144	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 256KB, 144FFBGA Ind AT32UC3A0256-CTUR Microchip Technology 2.000: Rp212.263,22 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. AT32UC3A0256-CTUR Mouser Part No 556-AT32UC3A0256CTUR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144FFBGA Ind Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel Rp212.263,22	Min.: 2.000 Mult.: 2.000 : 2.000	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 256KB, 144FFBGA Ind AT32UC3A0256-CTUT Microchip Technology 168: Rp209.327,86 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3A0256-CTUT Mouser Part No 556-AT32UC3A0256CTUT	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144FFBGA Ind Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Rp209.327,86	Min.: 168 Mult.: 168	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 512KB, 144FFBGA Ind AT32UC3A0512-CTUR Microchip Technology 2.000: Rp242.350,66 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. AT32UC3A0512-CTUR Mouser Part No 556-AT32UC3A0512CTUR	Microchip Technology	32-bit Microcontrollers - MCU 512KB, 144FFBGA Ind Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel Rp242.350,66	Min.: 2.000 Mult.: 2.000 : 2.000	AT32UC3A0	SMD/SMT	FFBGA-144	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	109 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 32-bit 512KB Flash AT32UC3A1512-AUT Microchip Technology 1: Rp265.099,70 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. AT32UC3A1512-AUT Mouser Part No 556-AT32UC3A1512-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 512KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	Non-Stocked Lead-Time 13 Weeks	Rp265.099,70 Rp241.249,90 Rp218.317,40	Min.: 1 Mult.: 1	AT32UC3A1	SMD/SMT	TQFP-100	AVR	512 kB	64 kB	32 bit	10 bit	66 MHz	69 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray

A0/A1-Series AT32UC3 AVR 32-Bit MCUs

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