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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Part #

32-bit Microcontrollers - MCU 256KB, 144FFBGA w/ AES Mod.

AT32UC3A3256S-CTUR
Microchip Technology
1: HK$145.66
183In Stock

Mfr. Part No.
AT32UC3A3256S-CTUR

Mouser Part No
556-AT32UC3A3256SCTR

Microchip Technology

32-bit Microcontrollers - MCU 256KB, 144FFBGA w/ AES Mod.

Learn More

Datasheet

183In Stock

Cut Tape

HK$145.66

HK$145.58

HK$145.49

HK$142.62

View

Reel

HK$136.12

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

AT32UC3A3

SMD/SMT

TBGA-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, Cut Tape, MouseReel

32-bit Microcontrollers - MCU 32-bit 128KB Flash

AT32UC3B0128-A2UT
Microchip Technology
1: HK$65.68
15In Stock
160Expected 4/9/2026

Mfr. Part No.
AT32UC3B0128-A2UT

Mouser Part No
556-AT32UC3B0128A2UT

Microchip Technology

32-bit Microcontrollers - MCU 32-bit 128KB Flash

Learn More

Datasheet

15In Stock

160Expected 4/9/2026

HK$65.68

HK$59.76

HK$54.09

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: HK$74.80
38In Stock
520Expected 8/10/2026

Mfr. Part No.
AT32UC3B0256-Z2UT

Mouser Part No
556-AT32UC3B0256Z2UT

Microchip Technology

32-bit Microcontrollers - MCU 32-bit 256KB Flash

Learn More

Datasheet

38In Stock

520Expected 8/10/2026

HK$74.80

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 UC3C 128K FLASH 32K SRAM

AT32UC3C0128C-ALUT
Microchip Technology
1: HK$94.61
106In Stock

Mfr. Part No.
AT32UC3C0128C-ALUT

Mouser Part No
556-AT32UC3C0128CALT

Microchip Technology

32-bit Microcontrollers - MCU UC3C 128K FLASH 32K SRAM

Learn More

Datasheet

106In Stock

HK$94.61

HK$86.06

HK$77.84

Min.: 1
Mult.: 1

AT32UC3C0

SMD/SMT

LQFP-144

AVR

128 kB

32 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 256K FLASH 64K SRAM

AT32UC3C0256C-ALUT
Microchip Technology
1: HK$116.07
6In Stock

Mfr. Part No.
AT32UC3C0256C-ALUT

Mouser Part No
556-AT32UC3C0256CALT

Microchip Technology

32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM

Learn More

Datasheet

6In Stock

HK$116.07

HK$105.54

HK$95.68

Min.: 1
Mult.: 1

AT32UC3C0

SMD/SMT

LQFP-144

AVR

256 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 64K FLASH 16K SRAM

AT32UC3C164C-AUT
Microchip Technology
1: HK$80.97
35In 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

Datasheet

35In Stock

HK$80.97

HK$73.73

HK$66.75

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 128K FLASH 32K SRAM

AT32UC3C2128C-A2UT
Microchip Technology
1: HK$82.04
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

Datasheet

2In Stock

HK$82.04

HK$74.39

HK$67.40

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 Flash 64QFP 85C green TRAY

ATUC256L3U-AUT
Microchip Technology
1: HK$86.06
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

Datasheet

33In Stock

HK$86.06

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

- 40 C

+ 85 C

Tray

32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFN 85C green T&R

ATUC256L3U-Z3UR
Microchip Technology
1: HK$87.54
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

Datasheet

10In Stock

Cut Tape

HK$87.54

HK$84.58

Reel

HK$72.09

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

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM

AT32UC3C1512C-AUR
Microchip Technology
1: HK$129.47
1,993Expected 15/10/2026

Mfr. Part No.
AT32UC3C1512C-AUR

Mouser Part No
556-AT32UC3C1512CAUR

Microchip Technology

32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM

Learn More

Datasheet

1,993Expected 15/10/2026

Cut Tape

HK$129.47

HK$125.19

Reel

HK$114.09

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

AT32UC3C1

SMD/SMT

TQFP-100

AVR

512 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 512K FLASH 64K SRAM

AT32UC3C1512C-AUT
Microchip Technology
1: HK$127.90
4,770Expected 1/12/2026

Mfr. Part No.
AT32UC3C1512C-AUT

Mouser Part No
556-AT32UC3C1512CAUT

Microchip Technology

32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM

Learn More

Datasheet

4,770Expected 1/12/2026

HK$127.90

HK$116.31

HK$105.38

Min.: 1
Mult.: 1

AT32UC3C1

SMD/SMT

TQFP-100

AVR

512 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 32-bit 64KB Flash

AT32UC3B064-Z2UT
Microchip Technology
1: HK$55.57
1,820Expected 5/10/2026

Mfr. Part No.
AT32UC3B064-Z2UT

Mouser Part No
556-AT32UC3B064-Z2UT

Microchip Technology

32-bit Microcontrollers - MCU 32-bit 64KB Flash

Learn More

Datasheet

1,820Expected 5/10/2026

HK$55.57

HK$50.47

HK$45.54

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 128KB, 100LQFP 85deg. Green

AT32UC3A1128-AUR
Microchip Technology
1,000: HK$83.43
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

Datasheet

Non-Stocked Lead-Time 11 Weeks

Reel

HK$83.43

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: HK$102.26
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

Datasheet

Non-Stocked Lead-Time 11 Weeks

Cut Tape

HK$102.26

HK$98.80

Reel

HK$84.26

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: HK$94.28
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

HK$94.28

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: HK$114.50
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

Datasheet

Non-Stocked Lead-Time 11 Weeks

HK$114.50

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: HK$105.87
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$105.87

Quote

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: HK$140.89
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

Datasheet

Non-Stocked Lead-Time 11 Weeks

Reel

HK$140.89

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: HK$92.89
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

Datasheet

Non-Stocked Lead-Time 11 Weeks

Reel

HK$92.89

Min.: 800
Mult.: 800

: 800

AT32UC3A3

SMD/SMT

LQFP-144

AVR

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: HK$82.78
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$82.78

Min.: 260
Mult.: 260

AT32UC3A4

VFBGA-100

AVR

32 bit

10 bit

70 I/O

1.8 V

Tray

32-bit Microcontrollers - MCU 64k flash Ind

AT32UC3A464-C1UT
Microchip Technology
260: HK$90.09
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$90.09

Min.: 260
Mult.: 260

AT32UC3A4

VFBGA-100

AVR

32 bit

10 bit

70 I/O

1.8 V

Tray

32-bit Microcontrollers - MCU 128KB Flash 64QFN

AT32UC3C2128C-Z2UR
Microchip Technology
4,000: HK$81.54
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

Datasheet

Non-Stocked Lead-Time 33 Weeks

Reel

HK$81.54

Min.: 4,000
Mult.: 4,000

: 4,000

AT32UC3C2

AVR

32 bit

Reel

32-bit Microcontrollers - MCU 128KB Flash 64QFN

AT32UC3C2128C-Z2UT
Microchip Technology
260: HK$82.04
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

Datasheet

Non-Stocked Lead-Time 34 Weeks

HK$82.04

Min.: 260
Mult.: 260

AT32UC3C2

AVR

32 bit

Tray

32-bit Microcontrollers - MCU 256KB Flash 64QFN (-40oC to 85oC) T&R

AT32UC3C2256C-Z2UR
Microchip Technology
4,000: HK$99.38
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

Datasheet

Non-Stocked Lead-Time 33 Weeks

Reel

HK$99.38

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: HK$97.90
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

Datasheet

Non-Stocked Lead-Time 28 Weeks

HK$97.90

Min.: 260
Mult.: 260

AT32UC3C2

AVR

32 bit

Tray

AVR® 32-Bit UC3 Microcontrollers

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