ARM Microcontrollers - MCU

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SAM L21 Microcontrollers

Microchip Technology SAM L21 are ultralow-power microcontrollers (MCU) using the 32-bit ARM® Cortex®-M0+ processor. The processor runs at max. 48MHz (2.46 CoreMark®/MHz) and up to 256KB Flash and 40KB of SRAM. The MCUs are housed in 32-, 48-, and 64-pin package. The SAM L21 feature sophisticated power management technologies, like power domain gating, SleepWalking, ultralow-power peripherals and more that allow for very low current consumption. The highly configurable peripherals include a touch controller supporting capacitive interfaces with proximity sensing.

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Part #

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

ATSAML21J17B-MUT
Microchip Technology
1: 1 464,89 Ft
5 870In Stock

Mfr. Part No.
ATSAML21J17B-MUT

Mouser Part No
556-ATSAML21J17B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

Learn More

Datasheet

5 870In Stock

Cut Tape

1 464,89 Ft

Reel

1 464,89 Ft

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

SAML21

SMD/SMT

VQFN-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

51 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E17B-MUT
Microchip Technology
1: 1 327,44 Ft
8 498In Stock

Mfr. Part No.
ATSAML21E17B-MUT

Mouser Part No
556-ATSAML21E17B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

8 498In Stock

Cut Tape

1 327,44 Ft

1 280,42 Ft

Reel

1 276,80 Ft

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

SAML21

SMD/SMT

VQFN-32

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

25 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

ATSAML21G18B-AUT
Microchip Technology
1: 1 942,33 Ft
2 639In Stock

Mfr. Part No.
ATSAML21G18B-AUT

Mouser Part No
556-ATSAML21G18B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

Learn More

Datasheet

2 639In Stock

Cut Tape

1 942,33 Ft

1 880,84 Ft

1 602,33 Ft

Reel

1 602,33 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SAML21

SMD/SMT

TQFP-48

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

37 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM

ATSAML21E18B-AUT
Microchip Technology
1: 1 880,84 Ft
1 781In Stock

Mfr. Part No.
ATSAML21E18B-AUT

Mouser Part No
556-ATSAML21E18B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM

Learn More

Datasheet

1 781In Stock

Cut Tape

1 880,84 Ft

1 822,97 Ft

1 548,08 Ft

Reel

1 548,08 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

25 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 48TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21G16B-ANT
Microchip Technology
1: 1 399,78 Ft
1 770In Stock

Mfr. Part No.
ATSAML21G16B-ANT

Mouser Part No
579-ATSAML21G16B-ANT

Microchip Technology

ARM Microcontrollers - MCU 48TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

1 770In Stock

Cut Tape

1 399,78 Ft

Reel

1 399,78 Ft

Min.: 1
Mult.: 1

: 2 500

SAML21

SMD/SMT

TQFP-48

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

37 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz

ATSAML21E15B-MNT
Microchip Technology
1: 1 005,53 Ft
4 665In Stock

Mfr. Part No.
ATSAML21E15B-MNT

Mouser Part No
579-ATSAML21E15B-MNT

Microchip Technology

ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

4 665In Stock

Cut Tape

1 005,53 Ft

987,44 Ft

983,82 Ft

Reel

893,40 Ft

Quote

Min.: 1
Mult.: 1

: 5 000

SAML21

SMD/SMT

VQFN-32

ARM Cortex M0+

32 kB

32 bit

12 bit

48 MHz

25 I/O

4 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

ATSAML21G17B-AUT
Microchip Technology
1: 1 454,03 Ft
1 352In Stock

Mfr. Part No.
ATSAML21G17B-AUT

Mouser Part No
556-ATSAML21G17B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

Learn More

Datasheet

1 352In Stock

Cut Tape

1 454,03 Ft

1 421,48 Ft

Reel

1 421,48 Ft

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SAML21

SMD/SMT

TQFP-48

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

37 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

ATSAML21J17B-AUT
Microchip Technology
1: 1 501,06 Ft
1 077In Stock

Mfr. Part No.
ATSAML21J17B-AUT

Mouser Part No
556-ATSAML21J17B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

Learn More

Datasheet

1 077In Stock

Cut Tape

1 501,06 Ft

1 439,57 Ft

1 233,40 Ft

Reel

1 233,40 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 1 500

SAML21

SMD/SMT

TQFP-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

51 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E16B-AUT
Microchip Technology
1: 1 269,57 Ft
343In Stock

Mfr. Part No.
ATSAML21E16B-AUT

Mouser Part No
556-ATSAML21E16B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

343In Stock

Cut Tape

1 269,57 Ft

Reel

1 269,57 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

25 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21E15B-ANT
Microchip Technology
1: 1 164,67 Ft
2 101In Stock

Mfr. Part No.
ATSAML21E15B-ANT

Mouser Part No
579-ATSAML21E15B-ANT

Microchip Technology

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

2 101In Stock

Cut Tape

1 164,67 Ft

1 128,50 Ft

962,12 Ft

Reel

962,12 Ft

Min.: 1
Mult.: 1

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

32 kB

32 bit

12 bit

48 MHz

25 I/O

4 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E15B-MUT
Microchip Technology
1: 1 030,85 Ft
3 708In Stock

Mfr. Part No.
ATSAML21E15B-MUT

Mouser Part No
556-ATSAML21E15B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

3 708In Stock

Cut Tape

1 030,85 Ft

991,06 Ft

Reel

846,38 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

SAML21

SMD/SMT

VQFN-32

ARM Cortex M0+

32 kB

32 bit

12 bit

48 MHz

25 I/O

4 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21E16B-ANT
Microchip Technology
1: 1 334,67 Ft
3 591In Stock

Mfr. Part No.
ATSAML21E16B-ANT

Mouser Part No
579-ATSAML21E16B-ANT

Microchip Technology

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

3 591In Stock

Cut Tape

1 334,67 Ft

1 218,93 Ft

Reel

1 218,93 Ft

Quote

Min.: 1
Mult.: 1

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

25 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21E17B-ANT
Microchip Technology
1: 1 421,48 Ft
1 232In Stock

Mfr. Part No.
ATSAML21E17B-ANT

Mouser Part No
579-ATSAML21E17B-ANT

Microchip Technology

ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

1 232In Stock

Cut Tape

1 421,48 Ft

1 378,08 Ft

1 171,91 Ft

Reel

1 171,91 Ft

Min.: 1
Mult.: 1

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

25 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU WLCSP64, IND TEMP GREEN, 1.6-3.6V, 48MHz

ATSAML21J18B-UUT
Microchip Technology
5 000: 1 855,52 Ft
20 000In Stock
Factory Special Order

Mfr. Part No.
ATSAML21J18B-UUT

Mouser Part No
556-ATSAML21J18B-UUT

Factory Special Order

Microchip Technology

ARM Microcontrollers - MCU WLCSP64, IND TEMP GREEN, 1.6-3.6V, 48MHz

Datasheet

20 000In Stock

Reel

1 855,52 Ft

Min.: 5 000
Mult.: 5 000

: 5 000

SAML21

SMD/SMT

WLCSP-64

ARM Cortex M0

256 kB

32 bit

12 bit

48 MHz

51 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21J17B-ANT
Microchip Technology
1: 1 569,78 Ft
1 482In Stock

Mfr. Part No.
ATSAML21J17B-ANT

Mouser Part No
579-ATSAML21J17B-ANT

Microchip Technology

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

1 482In Stock

Cut Tape

1 569,78 Ft

1 522,76 Ft

1 294,89 Ft

Reel

1 294,89 Ft

Min.: 1
Mult.: 1

: 1 500

SAML21

SMD/SMT

TQFP-64

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

51 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

ATSAML21G17B-MUT
Microchip Technology
1: 1 388,93 Ft
2 621In Stock

Mfr. Part No.
ATSAML21G17B-MUT

Mouser Part No
556-ATSAML21G17B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

Learn More

Datasheet

2 621In Stock

Cut Tape

1 388,93 Ft

Reel

1 345,52 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

SAML21

SMD/SMT

VQFN-48

ARM Cortex M0+

128 kB

32 bit

12 bit

48 MHz

37 I/O

16 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz

ATSAML21E16B-MNT
Microchip Technology
1: 1 247,87 Ft
381In Stock

Mfr. Part No.
ATSAML21E16B-MNT

Mouser Part No
579-ATSAML21E16B-MNT

Microchip Technology

ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

381In Stock

Cut Tape

1 247,87 Ft

Reel

1 077,87 Ft

Min.: 1
Mult.: 1

: 5 000

SAML21

SMD/SMT

VQFN-32

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

25 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

ATSAML21G16B-AUT
Microchip Technology
1: 1 331,06 Ft
1 448In Stock

Mfr. Part No.
ATSAML21G16B-AUT

Mouser Part No
556-ATSAML21G16B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM

Learn More

Datasheet

1 448In Stock

Cut Tape

1 331,06 Ft

Reel

1 331,06 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

SAML21

SMD/SMT

TQFP-48

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

37 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

ATSAML21J16B-AUT
Microchip Technology
1: 1 407,01 Ft
1 094In Stock

Mfr. Part No.
ATSAML21J16B-AUT

Mouser Part No
556-ATSAML21J16B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

Learn More

Datasheet

1 094In Stock

Cut Tape

1 407,01 Ft

1 352,76 Ft

1 153,82 Ft

Reel

1 153,82 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 1 500

SAML21

SMD/SMT

TQFP-64

ARM Cortex M0+

64 kB

32 bit

12 bit

48 MHz

51 I/O

8 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz

ATSAML21J18B-ANT
Microchip Technology
1: 2 188,29 Ft
824In Stock

Mfr. Part No.
ATSAML21J18B-ANT

Mouser Part No
579-ATSAML21J18B-ANT

Microchip Technology

ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz

Learn More

Datasheet

824In Stock

Cut Tape

2 188,29 Ft

2 108,71 Ft

1 801,27 Ft

Reel

1 801,27 Ft

Min.: 1
Mult.: 1

: 1 500

SAML21

SMD/SMT

TQFP-64

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

51 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 105 C

Reel, Cut Tape

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E18B-MUT
Microchip Technology
1: 1 851,90 Ft
8 953In Stock

Mfr. Part No.
ATSAML21E18B-MUT

Mouser Part No
556-ATSAML21E18B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

8 953In Stock

Cut Tape

1 851,90 Ft

Reel

1 851,90 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

SAML21

SMD/SMT

VQFN-32

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

25 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 24KB SRAM

ATSAML21G18B-MUT
Microchip Technology
1: 1 942,33 Ft
6 302In Stock

Mfr. Part No.
ATSAML21G18B-MUT

Mouser Part No
556-ATSAML21G18B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 24KB SRAM

Learn More

Datasheet

6 302In Stock

Cut Tape

1 942,33 Ft

1 880,84 Ft

Reel

1 602,33 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

SAML21

SMD/SMT

VQFN-48

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

37 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

ATSAML21J18B-MUT
Microchip Technology
1: 2 039,99 Ft
3 708In Stock

Mfr. Part No.
ATSAML21J18B-MUT

Mouser Part No
556-ATSAML21J18B-MUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

Learn More

Datasheet

3 708In Stock

Cut Tape

2 039,99 Ft

Reel

2 039,99 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

SAML21

SMD/SMT

VQFN-64

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

51 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

ATSAML21J18B-AUT
Microchip Technology
1: 2 083,39 Ft
18In Stock
1 500Expected 9/15/2026

Mfr. Part No.
ATSAML21J18B-AUT

Mouser Part No
556-ATSAML21J18B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM

Learn More

Datasheet

18In Stock

1 500Expected 9/15/2026

Cut Tape

2 083,39 Ft

Reel

2 083,39 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 1 500

SAML21

SMD/SMT

TQFP-64

ARM Cortex M0+

256 kB

32 bit

12 bit

48 MHz

51 I/O

32 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

ATSAML21E15B-AUT
Microchip Technology
2 000: 911,48 Ft
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
ATSAML21E15B-AUT

Mouser Part No
556-ATSAML21E15B-AUT

Microchip Technology

ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

911,48 Ft

Min.: 2 000
Mult.: 2 000

: 2 000

SAML21

SMD/SMT

TQFP-32

ARM Cortex M0+

32 kB

32 bit

12 bit

48 MHz

25 I/O

4 kB

1.62 V

3.63 V

- 40 C

+ 85 C

Reel

SAM L21 Microcontrollers

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