32-bit Microcontrollers - MCU

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AVR® 32-Bit UC3 Microcontrollers

Microchip 32-bit AVR® UC3 RISC Microcontrollers (MCUs)are designed for cost-sensitive embedded applications that require low power consumption, high code density, and high performance. The AVR UC3 MCUs feature a memory protection unit (MPU) and fast, flexible interrupt controller, supporting the latest real-time operating systems. The secure access unit (SAU) with MPU provide enhanced security and integrity. A rich set of DSP instructions delivers higher computational capability.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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 UC3C 512K FLASH 64K SRAM AT32UC3C0512C-ALUT Microchip Technology 1: $22.67 10In Stock 480On Order	Mfr. Part No. AT32UC3C0512C-ALUT Mouser Part No 556-AT32UC3C0512CALT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	10In Stock 480On Order On Order Ship Dates Mfr. No: AT32UC3C0512C-ALUT Stock: 10 Can Dispatch Immediately On Order: 300 Pending 180 Expected 9/11/2026 Factory Lead Time: 32 Weeks	$22.67 $20.62 $18.67	Min.: 1 Mult.: 1	AT32UC3C0	SMD/SMT	LQFP-144	AVR	512 kB	64 kB	32 bit	12 bit	66 MHz	123 I/O	3 V	5.5 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3C 128K FLASH 32K SRAM AT32UC3C1128C-AUR Microchip Technology 1: $14.86 306In Stock	Mfr. Part No. AT32UC3C1128C-AUR Mouser Part No 556-AT32UC3C1128CAUR	Microchip Technology	32-bit Microcontrollers - MCU UC3C 128K FLASH 32K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	306In Stock	Cut Tape $14.86 $14.36 Reel $12.25 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	AT32UC3C1	SMD/SMT	TQFP-100	AVR	128 kB	32 kB	32 bit	12 bit	66 MHz	81 I/O	3 V	5.5 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C1256C-AUR Microchip Technology 1: $18.20 12In Stock 1,000Expected 4/1/2027	Mfr. Part No. AT32UC3C1256C-AUR Mouser Part No 556-AT32UC3C1256CAUR	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	12In Stock 1,000Expected 4/1/2027	Cut Tape $18.20 $17.57 Reel $14.97 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	AT32UC3C1	SMD/SMT	TQFP-100	AVR	256 kB	64 kB	32 bit	12 bit	66 MHz	81 I/O	3 V	5.5 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C1256C-AUT Microchip Technology 1: $17.94 10In Stock	Mfr. Part No. AT32UC3C1256C-AUT Mouser Part No 556-AT32UC3C1256CAUT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	10In Stock	$17.94 $16.31 $14.78	Min.: 1 Mult.: 1	AT32UC3C1	SMD/SMT	TQFP-100	AVR	256 kB	64 kB	32 bit	12 bit	66 MHz	81 I/O	3 V	5.5 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3C 64K FLASH 16K SRAM AT32UC3C164C-AUT Microchip Technology 1: $13.40 21In Stock	Mfr. Part No. AT32UC3C164C-AUT Mouser Part No 556-AT32UC3C164C-AUT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 64K FLASH 16K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	21In Stock	$13.40 $12.20 $11.04	Min.: 1 Mult.: 1	AT32UC3C1	SMD/SMT	TQFP-100	AVR	64 kB	16 kB	32 bit	12 bit	66 MHz	81 I/O	3 V	5.5 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3C 64K FLASH 16K SRAM AT32UC3C264C-A2UT Microchip Technology 1: $12.25 152In Stock	Mfr. Part No. AT32UC3C264C-A2UT Mouser Part No 556-AT32UC3C264CA2UT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 64K FLASH 16K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	152In Stock	$12.25 $11.12 $10.08	Min.: 1 Mult.: 1	AT32UC3C2	SMD/SMT		AVR	64 kB	16 kB	32 bit	12 bit	66 MHz	45 I/O	3 V	5.5 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFP 85C green TRAY ATUC256L3U-AUT Microchip Technology 1: $14.24 33In Stock	Mfr. Part No. ATUC256L3U-AUT Mouser Part No 556-ATUC256L3U-AUT	Microchip Technology	32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFP 85C green TRAY Learn More about Microchip Technology microchip l series mcus	Datasheet	33In Stock	$14.24 $12.92 $11.72	Min.: 1 Mult.: 1	UC3 L	SMD/SMT	TQFP-64	AVR	256 kB	32 kB	32 bit	12 bit	50 MHz	51 I/O	1.8 V	1.8 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFN 85C green T&R ATUC256L3U-Z3UR Microchip Technology 1: $14.48 10In Stock	Mfr. Part No. ATUC256L3U-Z3UR Mouser Part No 556-ATUC256L3U-Z3UR	Microchip Technology	32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFN 85C green T&R Learn More about Microchip Technology microchip l series mcus	Datasheet	10In Stock	Cut Tape $14.48 $13.99 Reel $11.93 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	UC3 L	SMD/SMT	QFN-64	AVR	256 kB	32 kB	32 bit	12 bit	50 MHz	51 I/O	1.8 V	1.8 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU UC3C 128K FLASH 32K SRAM AT32UC3C2128C-A2UT Microchip Technology 1: $13.57 2In Stock	Mfr. Part No. AT32UC3C2128C-A2UT Mouser Part No 556-AT32UC3C2128CA2T	Microchip Technology	32-bit Microcontrollers - MCU UC3C 128K FLASH 32K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	2In Stock	$13.57 $12.31 $11.15	Min.: 1 Mult.: 1	AT32UC3C2	SMD/SMT	TQFP-64	AVR	128 kB	32 kB	32 bit	12 bit	66 MHz	45 I/O	3 V	5.5 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU UC3L-256KB FL 85C AT32UC3L0256-D3HT Microchip Technology 1: $13.45 39In Stock	Mfr. Part No. AT32UC3L0256-D3HT Mouser Part No 556-AT32UC3L0256D3HT	Microchip Technology	32-bit Microcontrollers - MCU UC3L-256KB FL 85C Learn More about Microchip Technology microchip l series mcus	Datasheet	39In Stock	$13.45 $12.23 $11.10	Min.: 1 Mult.: 1	AT32UC3L0	SMD/SMT	TLLGA-48	AVR	256 kB	32 kB	32 bit	12 bit	50 MHz	36 I/O	1.8 V	1.8 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3B0256-Z2UT Microchip Technology 1: $12.38 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 Expected 19/3/2027 Factory Lead Time: 25 Weeks	$12.38 $11.25 $10.21	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, 100LQFP 85deg. Green AT32UC3A1128-AUR Microchip Technology 1,000: $11.40 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 $11.40	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: $16.92 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 $16.92 $16.35 Reel $13.94 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, 144LQFP Ind AT32UC3A3128-ALUR Microchip Technology 800: $15.60 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A3128-ALUR Mouser Part No 556-AT32UC3A3128ALUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144LQFP Ind	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $15.60	Min.: 800 Mult.: 800 : 800	AT32UC3A3	SMD/SMT	LQFP-144	AVR	128 kB	64 kB	32 bit	10 bit	66 MHz	110 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128KB, 144LQFP Ind AT32UC3A3128-ALUT Microchip Technology 60: $17.22 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A3128-ALUT Mouser Part No 556-AT32UC3A3128ALUT	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144LQFP Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 11 Weeks	$17.22 $15.60	Min.: 60 Mult.: 60	AT32UC3A3	SMD/SMT	LQFP-144	AVR	128 kB	64 kB	32 bit	10 bit	66 MHz	110 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Tray
32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. AT32UC3A3128-CTUR Microchip Technology 2,000: $14.81 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT32UC3A3128-CTUR Mouser Part No 556-AT32UC3A3128CTUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $14.81	Min.: 2,000 Mult.: 2,000 : 2,000	AT32UC3A3	SMD/SMT	TBGA-144	AVR	128 kB	64 kB	32 bit	10 bit	66 MHz	110 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 256KB, 144LQFP Ind w/ AES Mod. AT32UC3A3256S-ALUR Microchip Technology 800: $19.20 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A3256S-ALUR Mouser Part No 556-AT32UC3A3256SALR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144LQFP Ind w/ AES Mod. Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $19.20	Min.: 800 Mult.: 800 : 800	AT32UC3A3	SMD/SMT	LQFP-144	AVR	256 kB	64 kB	32 bit	10 bit	66 MHz	110 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 64KB, 144LQFP Ind AT32UC3A364-ALUR Microchip Technology 800: $13.02 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. AT32UC3A364-ALUR Mouser Part No 556-AT32UC3A364-ALUR	Microchip Technology	32-bit Microcontrollers - MCU 64KB, 144LQFP Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $13.02	Min.: 800 Mult.: 800 : 800	AT32UC3A3	SMD/SMT	LQFP-144	AVR	64 kB	64 kB	32 bit	10 bit	66 MHz	110 I/O	1.65 V	1.95 V	- 40 C	+ 85 C	Reel
32-bit Microcontrollers - MCU 128k flash Ind AT32UC3A4128S-C1UT Microchip Technology 260: $11.60 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT32UC3A4128S-C1UT Mouser Part No 556-AT32UC3A4128SC1T	Microchip Technology	32-bit Microcontrollers - MCU 128k flash Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$11.60	Min.: 260 Mult.: 260	AT32UC3A4		VFBGA-100	AVR			32 bit	10 bit		70 I/O	1.8 V	1.8 V			Tray
32-bit Microcontrollers - MCU 64k flash Ind AT32UC3A464-C1UT Microchip Technology 260: $12.61 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT32UC3A464-C1UT Mouser Part No 556-AT32UC3A464C1UT	Microchip Technology	32-bit Microcontrollers - MCU 64k flash Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$12.61	Min.: 260 Mult.: 260	AT32UC3A4		VFBGA-100	AVR			32 bit	10 bit		70 I/O	1.8 V	1.8 V			Tray
32-bit Microcontrollers - MCU 128KB Flash 64QFN AT32UC3C2128C-Z2UR Microchip Technology 4,000: $11.40 Non-Stocked Lead-Time 33 Weeks	Mfr. Part No. AT32UC3C2128C-Z2UR Mouser Part No 556-A32UC3C2128CZ2UR	Microchip Technology	32-bit Microcontrollers - MCU 128KB Flash 64QFN Learn More about Microchip Technology microchip c series mcus	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel $11.40	Min.: 4,000 Mult.: 4,000 : 4,000	AT32UC3C2			AVR			32 bit								Reel
32-bit Microcontrollers - MCU 128KB Flash 64QFN AT32UC3C2128C-Z2UT Microchip Technology 1: $13.57 Non-Stocked Lead-Time 34 Weeks	Mfr. Part No. AT32UC3C2128C-Z2UT Mouser Part No 556-A32UC3C2128CZ2UT	Microchip Technology	32-bit Microcontrollers - MCU 128KB Flash 64QFN Learn More about Microchip Technology microchip c series mcus	Datasheet	Non-Stocked Lead-Time 34 Weeks	$13.57 $12.34 $11.17	Min.: 1 Mult.: 1	AT32UC3C2			AVR			32 bit								Tray
32-bit Microcontrollers - MCU 256KB Flash 64QFN (-40oC to 85oC) T&R AT32UC3C2256C-Z2UR Microchip Technology 4,000: $13.94 Non-Stocked Lead-Time 33 Weeks	Mfr. Part No. AT32UC3C2256C-Z2UR Mouser Part No 556-A32UC3C2256CZ2UR	Microchip Technology	32-bit Microcontrollers - MCU 256KB Flash 64QFN (-40oC to 85oC) T&R Learn More about Microchip Technology microchip c series mcus	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel $13.94	Min.: 4,000 Mult.: 4,000 : 4,000	AT32UC3C2			AVR			32 bit								Reel
32-bit Microcontrollers - MCU 256KB Flash 64QFN (-40oC to 85oC) TRAY AT32UC3C2256C-Z2UT Microchip Technology 260: $13.70 Non-Stocked Lead-Time 28 Weeks	Mfr. Part No. AT32UC3C2256C-Z2UT Mouser Part No 556-A32UC3C2256CZ2UT	Microchip Technology	32-bit Microcontrollers - MCU 256KB Flash 64QFN (-40oC to 85oC) TRAY Learn More about Microchip Technology microchip c series mcus	Datasheet	Non-Stocked Lead-Time 28 Weeks	$13.70	Min.: 260 Mult.: 260	AT32UC3C2			AVR			32 bit								Tray
32-bit Microcontrollers - MCU 128KB, 144FBGA Ind, w/AES Mod. AT32UC3A0128-CTUR Microchip Technology 2,000: $12.89 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 $12.89	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

AVR® 32-Bit UC3 Microcontrollers

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