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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package / Case	Core	Program Memory Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Data RAM Size	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM ATSAML21J17B-MUT Microchip Technology 1: $5.171 5.700In Stock	Mfr. Part # ATSAML21J17B-MUT Mouser Part # 556-ATSAML21J17B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	5.700In Stock	Cut Tape $5.171 $5.007 Reel $4.271 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: $4.688 8.498In Stock	Mfr. Part # ATSAML21E17B-MUT Mouser Part # 556-ATSAML21E17B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	8.498In Stock	Cut Tape $4.688 $4.524 Reel $3.876 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 ATSAML21G17B-AUT Microchip Technology 1: $5.018 1.352In Stock	Mfr. Part # ATSAML21G17B-AUT Mouser Part # 556-ATSAML21G17B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.352In Stock	Cut Tape $5.018 $4.864 Reel $4.128 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 48TQFP 85C, GREEN,1.6-3.6V,48MHz ATSAML21G16B-ANT Microchip Technology 1: $4.941 1.770In Stock	Mfr. Part # ATSAML21G16B-ANT Mouser Part # 579-ATSAML21G16B-ANT	Microchip Technology	ARM Microcontrollers - MCU 48TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.770In Stock	Cut Tape $4.941 $4.776 Reel $4.062	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 ARM Cortex-M0+ 256KBFlash 40KB SRAM ATSAML21J17B-AUT Microchip Technology 1: $5.292 1.077In Stock	Mfr. Part # ATSAML21J17B-AUT Mouser Part # 556-ATSAML21J17B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.077In Stock	Cut Tape $5.292 $5.084 Reel $4.348 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 32QFN 85C, GREEN,1.6-3.6V,48MHz ATSAML21E15B-MNT Microchip Technology 1: $3.810 4.665In Stock	Mfr. Part # ATSAML21E15B-MNT Mouser Part # 579-ATSAML21E15B-MNT	Microchip Technology	ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	4.665In Stock	Cut Tape $3.810 $3.667 Reel $3.151	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+ 64KB flash 12kb SRAM ATSAML21E16B-AUT Microchip Technology 1: $4.480 338In Stock	Mfr. Part # ATSAML21E16B-AUT Mouser Part # 556-ATSAML21E16B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	338In Stock	Cut Tape $4.480 $4.337 Reel $3.689 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 ARM Cortex-M0+ 64KB flash 12kb SRAM ATSAML21E15B-MUT Microchip Technology 1: $3.634 3.708In Stock	Mfr. Part # ATSAML21E15B-MUT Mouser Part # 556-ATSAML21E15B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	3.708In Stock	Cut Tape $3.634 $3.502 Reel $2.986 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 WLCSP64, IND TEMP GREEN, 1.6-3.6V, 48MHz ATSAML21J18B-UUT Microchip Technology 5.000: $6.423 20.000In Stock Factory Special Order	Mfr. Part # ATSAML21J18B-UUT Mouser Part # 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 $6.423	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 32TQFP 85C, GREEN,1.6-3.6V,48MHz ATSAML21E16B-ANT Microchip Technology 1: $4.710 3.591In Stock	Mfr. Part # ATSAML21E16B-ANT Mouser Part # 579-ATSAML21E16B-ANT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	3.591In Stock	Cut Tape $4.710 $4.546 Reel $3.887	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: $5.018 1.232In Stock	Mfr. Part # ATSAML21E17B-ANT Mouser Part # 579-ATSAML21E17B-ANT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.232In Stock	Cut Tape $5.018 $4.864 Reel $4.139	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 32TQFP 85C, GREEN,1.6-3.6V,48MHz ATSAML21E15B-ANT Microchip Technology 1: $4.106 2.001In Stock	Mfr. Part # ATSAML21E15B-ANT Mouser Part # 579-ATSAML21E15B-ANT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	2.001In Stock	Cut Tape $4.106 $3.986 Reel $3.393	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 32QFN 85C, GREEN,1.6-3.6V,48MHz ATSAML21E16B-MNT Microchip Technology 1: $4.633 381In Stock	Mfr. Part # ATSAML21E16B-MNT Mouser Part # 579-ATSAML21E16B-MNT	Microchip Technology	ARM Microcontrollers - MCU 32QFN 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	381In Stock	Cut Tape $4.633 $4.469 Reel $3.810	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: $4.699 1.448In Stock	Mfr. Part # ATSAML21G16B-AUT Mouser Part # 556-ATSAML21G16B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.448In Stock	Cut Tape $4.699 $4.546 Reel $3.876 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: $4.963 1.094In Stock	Mfr. Part # ATSAML21J16B-AUT Mouser Part # 556-ATSAML21J16B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.094In Stock	Cut Tape $4.963 $4.776 Reel $4.073 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: $7.730 824In Stock	Mfr. Part # ATSAML21J18B-ANT Mouser Part # 579-ATSAML21J18B-ANT	Microchip Technology	ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	824In Stock	Cut Tape $7.730 $7.444 Reel $6.357	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 64TQFP 85C, GREEN,1.6-3.6V,48MHz ATSAML21J17B-ANT Microchip Technology 1: $5.545 1.482In Stock	Mfr. Part # ATSAML21J17B-ANT Mouser Part # 579-ATSAML21J17B-ANT	Microchip Technology	ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.482In Stock	Cut Tape $5.545 $5.369 Reel $4.567	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: $4.897 2.621In Stock	Mfr. Part # ATSAML21G17B-MUT Mouser Part # 556-ATSAML21G17B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	2.621In Stock	Cut Tape $4.897 $4.721 Reel $4.051 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 ARM Cortex-M0+ 256KBFlash 24KB SRAM ATSAML21G18B-MUT Microchip Technology 1: $6.851 6.302In Stock	Mfr. Part # ATSAML21G18B-MUT Mouser Part # 556-ATSAML21G18B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 24KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	6.302In Stock	Cut Tape $6.851 $6.643 Reel $5.654 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+ 256K Flash/32k SRAM ATSAML21E18B-AUT Microchip Technology 1: $6.643 1.779In Stock	Mfr. Part # ATSAML21E18B-AUT Mouser Part # 556-ATSAML21E18B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.779In Stock	Cut Tape $6.643 $6.434 Reel $5.468 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 ARM Cortex-M0+ 64KB flash 12kb SRAM ATSAML21E18B-MUT Microchip Technology 1: $6.533 820In Stock 15.000Expected 12/14/2026	Mfr. Part # ATSAML21E18B-MUT Mouser Part # 556-ATSAML21E18B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	820In Stock 15.000Expected 12/14/2026	Cut Tape $6.533 $6.324 Reel $5.358 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+ 128KBFlash 24KB SRAM ATSAML21G18B-AUT Microchip Technology 1: $6.851 2.329In Stock	Mfr. Part # ATSAML21G18B-AUT Mouser Part # 556-ATSAML21G18B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 128KBFlash 24KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	2.329In Stock	Cut Tape $6.851 $6.643 Reel $5.654 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+ 256KBFlash 40KB SRAM ATSAML21J18B-AUT Microchip Technology 1: $7.356 1.518In Stock	Mfr. Part # ATSAML21J18B-AUT Mouser Part # 556-ATSAML21J18B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1.518In Stock	Cut Tape $7.356 $7.115 Reel $6.050 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+ 256KBFlash 40KB SRAM ATSAML21J18B-MUT Microchip Technology 1: $7.203 4In Stock 4.000Expected 1/4/2027	Mfr. Part # ATSAML21J18B-MUT Mouser Part # 556-ATSAML21J18B-MUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	4In Stock 4.000Expected 1/4/2027	Cut Tape $7.203 $6.961 Reel $5.940 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+ 64KB flash 12kb SRAM ATSAML21E15B-AUT Microchip Technology 2.000: $3.217 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # ATSAML21E15B-AUT Mouser Part # 556-ATSAML21E15B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 64KB flash 12kb SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $3.217	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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