ARM Microcontrollers - MCU

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SAM D21 Arm® Cortex®-M0+ Microcontrollers

Microchip Technology SAM D21 Arm® Cortex®-M0+ Microcontrollers (MCUs) are low-power MCUs that range from 32- to 64-pins with up to 256KB Flash and 32KB of SRAM. The Microchip Technology SAM D21 MCUs have a maximum 48MHz frequency and reach 2.46 CoreMark/MHz. The devices are designed for simple and intuitive migration with identical peripheral modules. Features include hex-compatible code, identical linear address map, and pin-compatible migration paths between all devices in the product series. All devices include intelligent and flexible peripherals, an Event System for inter-peripheral signaling, and support for capacitive touch buttons, slider, and wheel user interfaces.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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	Qualification	Packaging
ARM Microcontrollers - MCU 48QFN 105C, GREEN,1.6-3.6V,48MHz ATSAMD21G16L-MNT Microchip Technology 1: ¥486.7 2,395In Stock	Mfr. Part # ATSAMD21G16L-MNT Mouser Part # 556-ATSAMD21G16L-MNT	Microchip Technology	ARM Microcontrollers - MCU 48QFN 105C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,395In Stock	Cut Tape ¥486.7 ¥473.4 Reel ¥402 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SAMD21	SMD/SMT	QFN-48	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	38 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 105 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32TQFP,125C TEMP, GREEN, 3.3V, 48MHZ,T&R ATSAMD21E15B-AFT Microchip Technology 1: ¥431.9 1,286In Stock	Mfr. Part # ATSAMD21E15B-AFT Mouser Part # 556-ATSAMD21E15B-AFT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP,125C TEMP, GREEN, 3.3V, 48MHZ,T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	1,286In Stock	Cut Tape ¥431.9 ¥416.9 Reel ¥355.5 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	26 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32QFN,125C TEMP, GREEN, 3.3V, 48MHZ, T&R ATSAMD21E15B-MFT Microchip Technology 1: ¥421.9 4,402In Stock	Mfr. Part # ATSAMD21E15B-MFT Mouser Part # 556-ATSAMD21E15B-MFT	Microchip Technology	ARM Microcontrollers - MCU 32QFN,125C TEMP, GREEN, 3.3V, 48MHZ, T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	4,402In Stock	Cut Tape ¥421.9 ¥410.3 Reel ¥347.1 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SAMD21	SMD/SMT	QFN-32	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	26 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 64QFN 125C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-MFT Microchip Technology 1: ¥800.6 2,732In Stock	Mfr. Part # ATSAMD21J18A-MFT Mouser Part # 556-ATSAMD21J18A-MFT	Microchip Technology	ARM Microcontrollers - MCU 64QFN 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,732In Stock	Cut Tape ¥800.6 ¥770.7 Reel ¥659.4 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SAMD21	SMD/SMT	QFN-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 48TQFP,125C TEMP, GREEN, 3.3V, 48MHZ,T&R ATSAMD21G15B-AFT Microchip Technology 1: ¥451.8 2,138In Stock	Mfr. Part # ATSAMD21G15B-AFT Mouser Part # 556-ATSAMD21G15B-AFT	Microchip Technology	ARM Microcontrollers - MCU 48TQFP,125C TEMP, GREEN, 3.3V, 48MHZ,T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	2,138In Stock	Cut Tape ¥451.8 ¥435.2 Reel ¥372.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SAMD21	SMD/SMT	TQFP-48	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	38 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 3.3V, 48MHZ ATSAMD21J15B-AU Microchip Technology 1: ¥418.6 313In Stock	Mfr. Part # ATSAMD21J15B-AU Mouser Part # 556-ATSAMD21J15B-AU	Microchip Technology	ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 3.3V, 48MHZ Learn More about Microchip Technology sam d21 mcus	Datasheet	313In Stock	¥418.6 ¥380.4 ¥345.5	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-64	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	52 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 64TQFP,125C TEMP, GREEN, 3.3V, 48MHZ ATSAMD21J16B-AF Microchip Technology 1: ¥533.2 472In Stock	Mfr. Part # ATSAMD21J16B-AF Mouser Part # 556-ATSAMD21J16B-AF	Microchip Technology	ARM Microcontrollers - MCU 64TQFP,125C TEMP, GREEN, 3.3V, 48MHZ Learn More about Microchip Technology sam d21 mcus	Datasheet	472In Stock	¥533.2 ¥485 ¥438.5	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-64	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	52 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 48TQFP,125C TEMP, GREEN, 3.3V, 48MHZ ATSAMD21G15B-AF Microchip Technology 1: ¥436.8 488In Stock	Mfr. Part # ATSAMD21G15B-AF Mouser Part # 556-ATSAMD21G15B-AF	Microchip Technology	ARM Microcontrollers - MCU 48TQFP,125C TEMP, GREEN, 3.3V, 48MHZ Learn More about Microchip Technology sam d21 mcus	Datasheet	488In Stock	¥436.8 ¥397 ¥358.8	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-48	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	38 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 64QFN,85C TEMP, GREEN, 3.3V, 48MHZ ATSAMD21J16B-MU Microchip Technology 1: ¥476.7 420In Stock	Mfr. Part # ATSAMD21J16B-MU Mouser Part # 556-ATSAMD21J16B-MU	Microchip Technology	ARM Microcontrollers - MCU 64QFN,85C TEMP, GREEN, 3.3V, 48MHZ Learn More about Microchip Technology sam d21 mcus	Datasheet	420In Stock	¥476.7 ¥431.9 ¥390.3	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	QFN-64	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	52 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU CM0,TQFP32, 64kFlash,Tray,USB,Extended Temp ATSAMD21E16B-AZVAO Microchip Technology 1: ¥387 727In Stock New Product	Mfr. Part # ATSAMD21E16B-AZVAO Mouser Part # 579-ATSD21E16BAZVAO New Product	Microchip Technology	ARM Microcontrollers - MCU CM0,TQFP32, 64kFlash,Tray,USB,Extended Temp Learn More about Microchip Technology sam d21 mcus	Datasheet	727In Stock	¥387 ¥355.5 ¥322.2	Min.: 1 Mult.: 1		SMD/SMT	TQFP-32	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	26 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 125 C		Tray
ARM Microcontrollers - MCU CM0,TQFP48, 128kFlash,Trays,USB,Extended Temp ATSAMD21G17D-AZVAO Microchip Technology 1: ¥453.5 674In Stock New Product	Mfr. Part # ATSAMD21G17D-AZVAO Mouser Part # 579-ATSD21G17DAZVAO New Product	Microchip Technology	ARM Microcontrollers - MCU CM0,TQFP48, 128kFlash,Trays,USB,Extended Temp Learn More about Microchip Technology sam d21 mcus	Datasheet	674In Stock	¥453.5 ¥416.9 ¥377	Min.: 1 Mult.: 1		SMD/SMT	TQFP-48	ARM Cortex M0+	128 kB	32 bit	12 bit	48 MHz	38 I/O	16 kB	1.62 V	3.63 V	- 40 C	+ 125 C		Tray
ARM Microcontrollers - MCU CM0,QFN64, 64kFlash,Tray,USB,Extended Temp ATSAMD21J16B-MZVAO Microchip Technology 1: ¥531.5 520In Stock New Product	Mfr. Part # ATSAMD21J16B-MZVAO Mouser Part # 579-ATSD21J16BMZVAO New Product	Microchip Technology	ARM Microcontrollers - MCU CM0,QFN64, 64kFlash,Tray,USB,Extended Temp Learn More about Microchip Technology sam d21 mcus	Datasheet	520In Stock	¥531.5 ¥486.7 ¥441.8	Min.: 1 Mult.: 1		SMD/SMT	VQFN-64	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	52 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21E18A-AF Microchip Technology 1: ¥722.5 4,950In Stock	Mfr. Part # ATSAMD21E18A-AF Mouser Part # 556-ATSAMD21E18A-AF	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	4,950In Stock	¥722.5 ¥657.8 ¥594.6	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz ATSAMD21E18A-AUT Microchip Technology 1: ¥669.4 5,503In Stock	Mfr. Part # ATSAMD21E18A-AUT Mouser Part # 556-ATSAMD21E18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	5,503In Stock	Cut Tape ¥669.4 ¥649.5 Reel ¥553.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz ATSAMD21G18A-AUT Microchip Technology 1: ¥705.9 4,389In Stock	Mfr. Part # ATSAMD21G18A-AUT Mouser Part # 556-ATSAMD21G18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	4,389In Stock	Cut Tape ¥705.9 ¥682.7 Reel ¥583 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SAMD21	SMD/SMT	TQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 48QFN 125C, GREEN,1.6-3.6V,48MHz ATSAMD21G18A-MFT Microchip Technology 1: ¥759.1 3,001In Stock 8,000Expected 10/15/2026	Mfr. Part # ATSAMD21G18A-MFT Mouser Part # 556-ATSAMD21G18A-MFT	Microchip Technology	ARM Microcontrollers - MCU 48QFN 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	3,001In Stock 8,000Expected 10/15/2026	Cut Tape ¥759.1 ¥735.8 Reel ¥626.2 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SAMD21	SMD/SMT	QFN-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz ATSAMD21G18A-MUT Microchip Technology 1: ¥691 14,472In Stock	Mfr. Part # ATSAMD21G18A-MUT Mouser Part # 556-ATSAMD21G18A-MUT	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	14,472In Stock	Cut Tape ¥691 ¥669.4 Reel ¥569.7 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SAMD21	SMD/SMT	QFN-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 128KB 16KB32QFN GRN1.6-3.6V48MHz ATSAMD21E17A-MUT Microchip Technology 1: ¥521.6 8,529In Stock	Mfr. Part # ATSAMD21E17A-MUT Mouser Part # 556-ATSAMD21E17A-MUT	Microchip Technology	ARM Microcontrollers - MCU 128KB 16KB32QFN GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	8,529In Stock	Cut Tape ¥521.6 ¥501.6 Reel ¥428.5 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SAMD21	SMD/SMT	QFN-32	ARM Cortex M0+	128 kB	32 bit	12 bit	48 MHz	26 I/O	16 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21E18A-AFT Microchip Technology 1: ¥734.2 6,087In Stock	Mfr. Part # ATSAMD21E18A-AFT Mouser Part # 556-ATSAMD21E18A-AFT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	6,087In Stock	Cut Tape ¥734.2 ¥709.2 Reel ¥606.3 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Low-Power, 32-bit Cortex-M0+ MCU with Advanced Analog and PWM ATSAMD21E18A-MUT Microchip Technology 1: ¥659.4 14,473In Stock	Mfr. Part # ATSAMD21E18A-MUT Mouser Part # 556-ATSAMD21E18A-MUT	Microchip Technology	ARM Microcontrollers - MCU Low-Power, 32-bit Cortex-M0+ MCU with Advanced Analog and PWM Learn More about Microchip Technology sam d21 mcus	Datasheet	14,473In Stock	Cut Tape ¥659.4 ¥636.2 Reel ¥541.5 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SAMD21	SMD/SMT	VQFN-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 64BGA 85C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-CUT Microchip Technology 1: ¥785.7 3,813In Stock	Mfr. Part # ATSAMD21J18A-CUT Mouser Part # 556-ATSAMD21J18A-CUT	Microchip Technology	ARM Microcontrollers - MCU 64BGA 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	3,813In Stock	Cut Tape ¥785.7 ¥760.7 Reel ¥760.7 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	SAMD21	SMD/SMT	UFBGA-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 3.3V, 48MHZ ATSAMD21E15B-AU Microchip Technology 1: ¥397 1,511In Stock	Mfr. Part # ATSAMD21E15B-AU Mouser Part # 556-ATSAMD21E15B-AU	Microchip Technology	ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 3.3V, 48MHZ Learn More about Microchip Technology sam d21 mcus	Datasheet	1,511In Stock	¥397 ¥360.4 ¥325.6	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	26 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 3.3V, 48MHZ, T&R ATSAMD21E15B-AUT Microchip Technology 1: ¥393.7 2,479In Stock	Mfr. Part # ATSAMD21E15B-AUT Mouser Part # 556-ATSAMD21E15B-AUT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 3.3V, 48MHZ, T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	2,479In Stock	Cut Tape ¥393.7 ¥382 Reel ¥322.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAMD21	SMD/SMT	TQFP-32	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	26 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32QFN,85C TEMP, GREEN, 3.3V, 48MHZ, T&R ATSAMD21E15B-MUT Microchip Technology 1: ¥387 1,967In Stock	Mfr. Part # ATSAMD21E15B-MUT Mouser Part # 556-ATSAMD21E15B-MUT	Microchip Technology	ARM Microcontrollers - MCU 32QFN,85C TEMP, GREEN, 3.3V, 48MHZ, T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	1,967In Stock	Cut Tape ¥387 ¥373.7 Reel ¥318.9 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SAMD21	SMD/SMT	QFN-32	ARM Cortex M0+	32 kB	32 bit	12 bit	48 MHz	26 I/O	4 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32QFN 125C, GREEN,1.6-3.6V,48MHz,T&R ATSAMD21E16L-MFT Microchip Technology 1: ¥486.7 5,386In Stock	Mfr. Part # ATSAMD21E16L-MFT Mouser Part # 556-ATSAMD21E16L-MFT	Microchip Technology	ARM Microcontrollers - MCU 32QFN 125C, GREEN,1.6-3.6V,48MHz,T&R Learn More about Microchip Technology sam d21 mcus	Datasheet	5,386In Stock	Cut Tape ¥486.7 ¥471.7 Reel ¥402 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SAMD21	SMD/SMT	QFN-32	ARM Cortex M0+	64 kB	32 bit	12 bit	48 MHz	26 I/O	8 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel