ARM Microcontrollers - MCU

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SAM3 Cortex-M3 Microcontrollers

Microchip Technology SAM3 Cortex®-M3 Flash Microcontrollers combine high-speed USB and an integrated transceiver for fast up/downloading of data, robust EMI tolerance, and plug-and-play high-speed serial interconnectivity. Microchip SAM3 MCUs feature a 96MHz maximum operating frequency and a high data-bandwidth architecture based on a 5-layer bus matrix with 22 DMA channels and distributed memory. The SAM3 is touch-ready and offers native support for Microchip QTouch® technology for easy implementation of buttons, sliders, and wheels in your application. These Microchip MCUs are ideal for applications with intensive communications requirements, including high-speed gateways in industrial, medical, data processing, and consumer applications.

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Part #

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

ATSAM3U4CA-AU
Microchip Technology
1: S/ 29.66
178In Stock

Mfr. Part #
ATSAM3U4CA-AU

Mouser Part #
556-ATSAM3U4CA-AU

Microchip Technology

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

Learn More

Datasheet

178In Stock

S/ 29.66

S/ 26.98

S/ 24.41

Min.: 1
Mult.: 1

SAM3U

SMD/SMT

LQFP-100

ARM Cortex M3

256 kB

32 bit

12 bit

96 MHz

57 I/O

52 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP, Green, IND TEMP, MRL A

ATSAM3N00BA-AU
Microchip Technology
1: S/ 13.97
346In Stock

Mfr. Part #
ATSAM3N00BA-AU

Mouser Part #
556-ATSAM3N00BA-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP, Green, IND TEMP, MRL A

Learn More

Datasheet

346In Stock

S/ 13.97

S/ 13.27

S/ 13.23

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

LQFP-64

ARM Cortex M3

16 kB

32 bit

10 bit

48 MHz

47 I/O

4 kB

1.8 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL a

ATSAM3N0AA-AU
Microchip Technology
1: S/ 12.73
126In Stock

Mfr. Part #
ATSAM3N0AA-AU

Mouser Part #
556-ATSAM3N0AA-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL a

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Datasheet

126In Stock

S/ 12.73

S/ 11.60

S/ 10.51

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

LQFP-48

ARM Cortex M3

32 kB

32 bit

10 bit

48 MHz

34 I/O

8 kB

1.8 V

3.6 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B

ATSAM3N1AB-AU
Microchip Technology
1: S/ 12.73
109In Stock

Mfr. Part #
ATSAM3N1AB-AU

Mouser Part #
556-ATSAM3N1AB-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B

Learn More

Datasheet

109In Stock

S/ 12.73

S/ 11.60

S/ 10.51

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

LQFP-48

ARM Cortex M3

64 kB

32 bit

10 bit

48 MHz

32 I/O

4 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

ATSAM3S2BA-AU
Microchip Technology
1: S/ 20.47
222In Stock

Mfr. Part #
ATSAM3S2BA-AU

Mouser Part #
556-ATSAM3S2BA-AU

Microchip Technology

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

Learn More

Datasheet

222In Stock

S/ 20.47

S/ 18.57

S/ 16.82

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFP-64

ARM Cortex M3

128 kB

32 bit

12 bit

64 MHz

47 I/O

32 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

ATSAM3S2BA-MU
Microchip Technology
1: S/ 20.86
146In Stock

Mfr. Part #
ATSAM3S2BA-MU

Mouser Part #
556-ATSAM3S2BA-MU

Microchip Technology

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

Learn More

Datasheet

146In Stock

S/ 20.86

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFN-64

ARM Cortex M3

128 kB

32 bit

12 bit

64 MHz

47 I/O

32 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

ATSAM3S2CA-AU
Microchip Technology
1: S/ 21.56
1In Stock

Mfr. Part #
ATSAM3S2CA-AU

Mouser Part #
556-ATSAM3S2CA-AU

Microchip Technology

ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp

Learn More

Datasheet

1In Stock

S/ 21.56

S/ 19.70

S/ 17.83

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFP-100

ARM Cortex M3

128 kB

32 bit

12 bit

64 MHz

79 I/O

32 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp

ATSAM3S4CA-AU
Microchip Technology
1: S/ 26.98
6In Stock

Mfr. Part #
ATSAM3S4CA-AU

Mouser Part #
556-ATSAM3S4CA-AU

Microchip Technology

ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp

Learn More

Datasheet

6In Stock

S/ 26.98

S/ 24.44

S/ 22.19

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFP-100

ARM Cortex M3

256 kB

32 bit

12 bit

64 MHz

79 I/O

48 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

ATSAM3U4EA-CU
Microchip Technology
1: S/ 38.73
184Expected 3/15/2027

Mfr. Part #
ATSAM3U4EA-CU

Mouser Part #
556-ATSAM3U4EA-CU

Microchip Technology

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

Learn More

Datasheet

184Expected 3/15/2027

S/ 38.73

S/ 35.19

S/ 31.92

S/ 31.88

Min.: 1
Mult.: 1

SAM3U

SMD/SMT

LFBGA-144

ARM Cortex M3

256 kB

32 bit

12 bit

96 MHz

96 I/O

52 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A

ATSAM3SD8CA-AU
Microchip Technology
1: S/ 35.11
90Expected 9/3/2026

Mfr. Part #
ATSAM3SD8CA-AU

Mouser Part #
556-ATSAM3SD8CA-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A

Learn More

Datasheet

90Expected 9/3/2026

S/ 35.11

S/ 31.92

S/ 28.88

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFP-100

ARM Cortex M3

512 kB

32 bit

12 bit

64 MHz

79 I/O

64 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

ATSAM3N00AA-MU
Microchip Technology
1: S/ 13.51
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3N00AA-MU

Mouser Part #
556-ATSAM3N00AA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 13.51

S/ 13.08

S/ 13.04

S/ 12.57

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

QFN-48

ARM Cortex M3

16 kB

32 bit

10 bit

48 MHz

34 I/O

4 kB

1.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

ATSAM3N00BA-MU
Microchip Technology
1: S/ 14.52
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3N00BA-MU

Mouser Part #
556-ATSAM3N00BA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 14.52

S/ 13.12

S/ 13.08

S/ 13.00

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

QFN-64

ARM Cortex M3

16 kB

32 bit

10 bit

48 MHz

32 I/O

4 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

ATSAM3N0AA-MU
Microchip Technology
1: S/ 13.51
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3N0AA-MU

Mouser Part #
556-ATSAM3N0AA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 13.51

S/ 13.08

S/ 13.04

S/ 12.61

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

QFN-48

ARM Cortex M3

32 kB

32 bit

10 bit

48 MHz

34 I/O

8 kB

1.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

ATSAM3N0BA-MU
Microchip Technology
1: S/ 13.74
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3N0BA-MU

Mouser Part #
556-ATSAM3N0BA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 13.74

S/ 13.39

S/ 13.35

S/ 12.92

View

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

QFN-64

ARM Cortex M3

32 kB

32 bit

10 bit

48 MHz

32 I/O

4 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,Grn, IT, MRL B

ATSAM3N1BB-MU
Microchip Technology
1: S/ 13.74
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3N1BB-MU

Mouser Part #
556-ATSAM3N1BB-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,Grn, IT, MRL B

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 13.74

S/ 13.39

S/ 13.35

S/ 13.16

S/ 13.08

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

QFN-64

ARM Cortex M3

64 kB

32 bit

10 bit

48 MHz

32 I/O

4 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

ATSAM3S8BA-MU
Microchip Technology
1: S/ 30.71
Lead-Time 9 Weeks

Mfr. Part #
ATSAM3S8BA-MU

Mouser Part #
556-ATSAM3S8BA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

Learn More

Datasheet

Lead-Time 9 Weeks

S/ 30.71

S/ 27.95

S/ 25.30

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFN-64

ARM Cortex M3

512 kB

32 bit

12 bit

64 MHz

47 I/O

64 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU BGA,Grn, IT, MRL A

ATSAM3S8CA-CU
Microchip Technology
260: S/ 32.11
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
ATSAM3S8CA-CU

Mouser Part #
556-ATSAM3S8CA-CU

Microchip Technology

ARM Microcontrollers - MCU BGA,Grn, IT, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/ 32.11

S/ 32.00

Min.: 260
Mult.: 260

SAM3S

SMD/SMT

TFBGA-100

ARM Cortex M3

512 kB

32 bit

12 bit

64 MHz

79 I/O

64 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

ATSAM3SD8BA-MU
Microchip Technology
1: S/ 38.42
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
ATSAM3SD8BA-MU

Mouser Part #
556-ATSAM3SD8BA-MU

Microchip Technology

ARM Microcontrollers - MCU QFN,Grn, IT, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

S/ 38.42

S/ 31.45

S/ 31.41

S/ 31.33

Min.: 1
Mult.: 1

SAM3S

SMD/SMT

QFN-64

ARM Cortex M3

512 kB

32 bit

12 bit

64 MHz

47 I/O

64 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU BGA,Grn, IT, MRL A

ATSAM3SD8CA-CU
Microchip Technology
260: S/ 37.87
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
ATSAM3SD8CA-CU

Mouser Part #
556-ATSAM3SD8CA-CU

Microchip Technology

ARM Microcontrollers - MCU BGA,Grn, IT, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/ 37.87

Min.: 260
Mult.: 260

SAM3S

SMD/SMT

TFBGA-100

ARM Cortex M3

512 kB

32 bit

12 bit

64 MHz

79 I/O

64 kB

1.62 V

1.9 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B

ATSAM3U1EB-AU
Microchip Technology
120: S/ 29.35
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
ATSAM3U1EB-AU

Mouser Part #
556-ATSAM3U1EB-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/ 29.35

Min.: 120
Mult.: 60

SAM3U

SMD/SMT

LQFP-144

ARM Cortex M3

64 kB

32 bit

12 bit

96 MHz

96 I/O

20 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LFBGA, Grn, IT MRL B

ATSAM3U1EB-CU
Microchip Technology
184: S/ 28.69
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
ATSAM3U1EB-CU

Mouser Part #
556-ATSAM3U1EB-CU

Microchip Technology

ARM Microcontrollers - MCU LFBGA, Grn, IT MRL B

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/ 28.69

Min.: 184
Mult.: 184

SAM3U

SMD/SMT

LFBGA-144

ARM Cortex M3

64 kB

32 bit

12 bit

96 MHz

96 I/O

20 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

ATSAM3U4CA-CU
Microchip Technology
1: S/ 31.96
Lead-Time 10 Weeks

Mfr. Part #
ATSAM3U4CA-CU

Mouser Part #
556-ATSAM3U4CA-CU

Microchip Technology

ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3

Learn More

Datasheet

Lead-Time 10 Weeks

S/ 31.96

S/ 29.12

S/ 26.39

Min.: 1
Mult.: 1

SAM3U

SMD/SMT

TFBGA-100

ARM Cortex M3

256 kB

32 bit

96 MHz

57 I/O

52 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU BGA100, GREEN, IND TEMP, MRL A

ATSAM3X4CA-CU
Microchip Technology
1: S/ 46.40
Non-Stocked Lead-Time 10 Weeks

Mfr. Part #
ATSAM3X4CA-CU

Mouser Part #
556-ATSAM3X4CA-CU

Microchip Technology

ARM Microcontrollers - MCU BGA100, GREEN, IND TEMP, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

S/ 46.40

Min.: 1
Mult.: 1

SAM3X

SMD/SMT

LFBGA-100

ARM Cortex M3

256 kB

32 bit

12 bit

84 MHz

103 I/O

64 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU BGA144,GREEN IND TEMP, MRL A

ATSAM3X4EA-CU
Microchip Technology
184: S/ 47.84
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
ATSAM3X4EA-CU

Mouser Part #
556-ATSAM3X4EA-CU

Microchip Technology

ARM Microcontrollers - MCU BGA144,GREEN IND TEMP, MRL A

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

S/ 47.84

Quote

Min.: 184
Mult.: 184

SAM3X

SMD/SMT

LFBGA-144

ARM Cortex M3

256 kB

32 bit

12 bit

84 MHz

103 I/O

64 kB

1.62 V

1.95 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU LQFP, Green, IND TEMP, MRL a

ATSAM3N00AA-AU
Microchip Technology
1: S/ 12.73
Lead-Time 14 Weeks

Mfr. Part #
ATSAM3N00AA-AU

Mouser Part #
556-ATSAM3N00AA-AU

Microchip Technology

ARM Microcontrollers - MCU LQFP, Green, IND TEMP, MRL a

Learn More

Datasheet

Lead-Time 14 Weeks

S/ 12.73

S/ 12.42

S/ 11.99

S/ 11.83

S/ 11.76

Min.: 1
Mult.: 1

SAM3N

SMD/SMT

LQFP-48

ARM Cortex M3

16 kB

32 bit

10 bit

48 MHz

34 I/O

4 kB

1.8 V

- 40 C

+ 85 C

Tray

SAM3 Cortex-M3 Microcontrollers

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