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Microcontrollers

Microcontrollers, also referred to as MCUs (microcontroller units), are embedded semiconductor devices used in circuit board design. They are essentially a computer within an integrated circuit (IC). Microcontrollers are mostly used in single-function embedded applications, unlike microprocessors which are designed for general-purpose work in Personal Computers, Tablets and Smartphones. Microcontrollers are limited in their clock speed compared to microprocessors by the relative slowness of their non-volatile Flash program memory. Learn more in our microcontrollers guide.

What are Microcontrollers made up of?

Microcontrollers contain single or multiple processors, plus memory and I/O peripherals. These peripherals include timers, ADCs (analogue-to-digital converters) and DACs (digital-to-analogue converters).

What does 8-bit mean?

Microcontrollers have a data bus width which describes the amount of data the MCU can process at a time. For example, an 8-bit microcontroller can process 8 bits at one time. Popular data bus widths include 8-bit, 16-bit and 32-bit MCUs.

What packages are available for Microcontrollers?

MCUs come in standard chip packages with various pin counts. Package types include:

LQFP
PDIP
QFN
SOIC
SSOP
TQFP
TSSOP

What are ARM processor cores?

Microcontrollers often contain an ARM microprocessor core. ARM represents an architecture developed by ARM Holdings, which is used by other companies to manufacture microprocessors and other devices such as System-on-Chip (SoCs).

Cortex-M0
Cortex-M0+
Cortex-M1
Cortex-M3
Cortex-M4
Cortex-M7
Cortex-M23
Cortex-M33
Cortex-M35P

Where are microcontrollers used?

MCUs can be found in many technologies and any electronic device containing a sensor, a display, a user interface and a programmable output control or actuator is likely to feature an MCU. They can be found in the following areas:

Computers
Automotive
Robotics
Automation
Medical equipment
Home appliances
IoT devices

11454 Products showing for Microcontrollers

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In Stock Microchip, 8 bit PIC, PIC16F628A Microcontroller, 20 MHz, 1kB FLASH, 18-Pin SOIC RS stock no. 165-1950 Mfr. Part No. PIC16F628A-E/SO Subtotal (1 tube of 42 units) R 2 192,19(exc. VAT) R 52,195/unit Quantity	Microchip	-	Microcontroller	PIC16F628A	SOIC	Surface	-	18	PIC	8bit	SPI	1kB	-	20MHz	-	224bit	5.5V	-	2	-	800mW	-40°C	-	33	125°C	2.35mm	11.55mm	-	RoHS	7.5mm	2V	-	-	-	-	-
Temporarily out of stock STMicroelectronics, 32 bit ARM Cortex M7, STM32H743II Microcontroller, 480 MHz, 2MB FLASH, 176-Pin UFBGA RS stock no. 165-3234 Mfr. Part No. STM32H743IIK6 Subtotal (1 tray of 168 units) R 41 299,44(exc. VAT) R 245,83/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H743II	UFBGA	Surface	-	176	ARM Cortex M7	32bit	-	2MB	2 x 12 Bit	480MHz	-	1MB	3.6V	-	2	-	-	-40°C	-	168	85°C	0.49mm	10.15mm	-	No	10.15mm	1.62V	-	-	-	-	-
In Stock STMicroelectronics STM32F407VET6TR, 32 bit ARM Cortex M4 32 Bit Microcontroller, 168 MHz, 512kB FLASH, 100-Pin LQFP RS stock no. 690-454 Mfr. Part No. STM32F407VET6TR Subtotal (1 unit) R 175,44(exc. VAT) R 175,44/unit Quantity	STMicroelectronics	-	32 Bit Microcontroller	-	LQFP	Surface	-	100	ARM Cortex M4	32bit	-	512kB	-	168MHz	-	-	3.6V	-	-	-	-	-40°C	-	140	85°C	-	-	-	RoHS	-	2V	-	-	-	-	-
In Stock NXP MC908GP32CFBE 8 Bit Microcontroller RS stock no. 666-108 Mfr. Part No. MC908GP32CFBE Subtotal (1 unit) R 301,25(exc. VAT) R 301,25/unit Quantity	NXP	-	8 Bit Microcontroller	-	-	-	-	-	-	-	TIM, SPI, SCI	-	-	-	-	512bit	5V	-	-	-	-	-40°C	-	33	85°C	-	-	-	RoHS	-	3V	-	-	-	-	-
Temporarily out of stock STMicroelectronics, 32 bit ARM Cortex M0+ 32 Bit Microcontroller, 48 MHz, 32kB FLASH, 28-Pin UFQFPN RS stock no. 690-452 Mfr. Part No. STM32C031G6U6TR Subtotal (1 unit) R 17,41(exc. VAT) R 17,41/unit Quantity	STMicroelectronics	-	32 Bit Microcontroller	-	UFQFPN	Surface	-	28	ARM Cortex M0+	32bit	-	32kB	-	48MHz	-	12kB	3.6V	-	-	-	-	-40°C	-	45	125°C	-	-	-	RoHS	-	2V	-	-	-	-	-
Temporarily out of stock Microchip PIC32CM6408JH00048-E/Y8X, 32 bit ARM Cortex M0+, PIC32CM6408 ARM Microcontroller, 48 MHz, 64kB FLASH, 48-Pin RS stock no. 757-640 Mfr. Part No. PIC32CM6408JH00048-E/Y8X Subtotal (1 box of 500 units) R 15 690,50(exc. VAT) R 31,381/unit Quantity	Microchip	-	ARM Microcontroller	PIC32CM6408	TQFP	Surface	-	48	ARM Cortex M0+	32bit	I2C, SPI, USART	64kB	-	48MHz	-	8kB	5.5V	-	2	-	-	-40°C	-	38	125°C	1.2mm	9mm	-	RoHS	9mm	2.7V	-	-	-	-	-
In Stock Infineon TLE9954EQW40XUMA1, 32 bit ARM Cortex M23, MOTIX Microcontroller, 40 MHz, 72kB FLASH, 32-Pin Tape & Reel RS stock no. 762-956 Mfr. Part No. TLE9954EQW40XUMA1 Subtotal (1 unit) R 95,10(exc. VAT) R 95,10/unit Quantity	Infineon	-	Microcontroller	MOTIX	Tape & Reel	Surface	-	32	ARM Cortex M23	32bit	SSC	72kB	-	40MHz	-	6kB	29V	-	-	-	-	-40°C	-	8	175°C	1.15mm	8.65mm	-	RoHS Compliant	2.65mm	5.5V	-	-	-	-	-
Currently unavailable STMicroelectronics STM32C092KBT6 ARM 32 bit Cortex M0+ CPU, STM32C092 Microcontroller, 48 MHz FLASH, 32-Pin LQFP RS stock no. 315-754 Mfr. Part No. STM32C092KBT6 Subtotal (1 unit) R 41,77(exc. VAT) R 41,77/unit Quantity	STMicroelectronics	-	Microcontroller	STM32C092	LQFP	-	-	32	ARM 32 bit Cortex M0+ CPU	-	-	-	-	48MHz	-	128kB	3.6V	-	-	-	-	-45°C	-	61	80°C	-	7mm	-	No	7mm	2V	-	-	-	-	-
In Stock STMicroelectronics STM32N657A0H3Q, STM32N Microcontroller, 800 MHz, 4.4MB FLASH, 32-Pin VFBGA RS stock no. 266-763 Mfr. Part No. STM32N657A0H3Q Subtotal (1 unit) R 358,51(exc. VAT) R 358,51/unit Quantity	STMicroelectronics	-	Microcontroller	STM32N	VFBGA	Surface	-	32	-	-	-	4.4MB	-	800MHz	-	4.2MB	3.6V	-	-	-	-	-40°C	-	-	125°C	1mm	-	-	EN/IEC 60335-1, ISO/IEC 7816-3, JEDEC JESD47	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32WL33CCV6, 32 bit ARM 32 Bit Cortex M0, STM32WL33xx Microcontroller, 958 MHz, 256kB FLASH, 32-Pin RS stock no. 285-651 Mfr. Part No. STM32WL33CCV6 Subtotal (1 unit) R 106,08(exc. VAT) R 106,08/unit Quantity	STMicroelectronics	-	Microcontroller	STM32WL33xx	VFQFPN-32	Surface	-	32	ARM 32 Bit Cortex M0	32bit	-	256kB	1 x 6 Bit	958MHz	-	32kB	3.6V	-	1	-	-	-40°C	-	32	105°C	7mm	5mm	-	ECOPACK2, EN 303 131, Europe:ETSI EN 300 220 (cat 1), Japan:ARIB STD T67, part 90, T108, US:FCC part 15	6mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32WL33KBV7, 32 bit ARM 32 Bit Cortex M0, STM32WL33xx Microcontroller, 958 MHz, 256kB FLASH, 32-Pin RS stock no. 285-626 Mfr. Part No. STM32WL33KBV7 Subtotal (1 unit) R 96,74(exc. VAT) R 96,74/unit Quantity	STMicroelectronics	-	Microcontroller	STM32WL33xx	VFQFPN-32	Surface	-	32	ARM 32 Bit Cortex M0	32bit	-	256kB	1 x 6 Bit	958MHz	-	32kB	3.6V	-	1	-	-	-40°C	-	-	105°C	7mm	5mm	-	ARIB STD T67, ECOPACK2, ETSI EN 300 220, ETSI EN 303 131, FCC part 15 and part 90, T108	6mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32N655L0H3Q, STM32N Microcontroller, 800 MHz, 4.4MB FLASH, 32-Pin VFBGA RS stock no. 266-771 Mfr. Part No. STM32N655L0H3Q Subtotal (1 unit) R 141,17(exc. VAT) R 141,17/unit Quantity	STMicroelectronics	-	Microcontroller	STM32N	VFBGA	Surface	-	32	-	-	-	4.4MB	-	800MHz	-	4.2MB	3.6V	-	-	-	-	-40°C	-	-	125°C	1mm	-	-	JEDEC JESD47, ISO/IEC 7816-3, EN/IEC 60335-1	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32U031C8T6, 32 bit ARM Cortex M0+, STM32U031 Microcontroller, 56 MHz, 64kB FLASH, 48-Pin LQFP RS stock no. 216-849 Mfr. Part No. STM32U031C8T6 Subtotal (1 unit) R 59,50(exc. VAT) R 59,50/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U031	LQFP	Surface	-	48	ARM Cortex M0+	32bit	-	64kB	1 x 12 Bit DAC	56MHz	-	-	3.6V	-	-	-	-	-40°C	-	53	125°C	5mm	5mm	-	RoHS	-	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32N655X0H3Q, STM32N Microcontroller, 800 MHz, 4.4MB FLASH, 32-Pin VFBGA RS stock no. 266-773 Mfr. Part No. STM32N655X0H3Q Subtotal (1 unit) R 155,11(exc. VAT) R 155,11/unit Quantity	STMicroelectronics	-	Microcontroller	STM32N	VFBGA	Surface	-	32	-	-	-	4.4MB	-	800MHz	-	4.2MB	3.6V	-	-	-	-	-40°C	-	-	125°C	1mm	-	-	JEDEC JESD47, ISO/IEC 7816-3, EN/IEC 60335-1	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32H7R7I8K6, 32 bit ARM Cortex M7, STM32H7R7x8 Microcontroller, 600 MHz, 64kB FLASH, 176-Pin UFBGA RS stock no. 216-868 Mfr. Part No. STM32H7R7I8K6 Subtotal (1 unit) R 167,87(exc. VAT) R 167,87/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H7R7x8	UFBGA	Surface	-	176	ARM Cortex M7	32bit	-	64kB	-	600MHz	-	620kB	3.6V	-	-	-	-	-	-	152	-	-	-	-	ECOPACK2, NIST SP800-90B (TRNG)	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32U031R8T6, 32 bit ARM Cortex M0+, STM32U031 Microcontroller, 56 MHz, 64kB FLASH, 64-Pin LQFP RS stock no. 216-850 Mfr. Part No. STM32U031R8T6 Subtotal (1 unit) R 64,32(exc. VAT) R 64,32/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U031	LQFP	Surface	-	64	ARM Cortex M0+	32bit	-	64kB	1 x 12 Bit DAC	56MHz	-	-	3.6V	-	-	-	-	-40°C	-	53	125°C	1mm	10mm	-	RoHS	-	1.7V	-	-	-	-	-
In Stock Microchip PIC32CZ4010CA80208-I/8MX, 32 bit ARM Cortex M7, PIC32CZ CA80/CA90 Family Microcontroller, 300 MHz, 4096kB RS stock no. 302-632 Mfr. Part No. PIC32CZ4010CA80208-I/8MX Subtotal (1 unit) R 120,33(exc. VAT) R 120,33/unit Quantity	Microchip	-	Microcontroller	PIC32CZ CA80/CA90 Family	BGA	Surface	-	208	ARM Cortex M7	32bit	-	4096kB	7 bit	300MHz	-	1MB	3.63V	-	2	-	-	-40°C	-	157	85°C	1.19mm	15mm	-	RoHS	15mm	1.75V	-	-	-	-	-
In Stock STMicroelectronics STM32H7S3A8I6, 32 bit ARM Cortex M7, STM32H7Sxx8 Microcontroller, 600 MHz, 64kB FLASH, 169-Pin UFBGA RS stock no. 216-861 Mfr. Part No. STM32H7S3A8I6 Subtotal (1 unit) R 295,18(exc. VAT) R 295,18/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H7Sxx8	UFBGA	Surface	-	169	ARM Cortex M7	32bit	-	64kB	-	600MHz	-	620kB	3.6V	-	-	-	-	-	-	152	-	-	-	-	PSA Level 2, ECOPACK2, SESIP Level 3	-	1.71V	-	-	-	-	-
Limited stock STMicroelectronics STM32U031F8P6, 32 bit ARM Cortex M0+, STM32U031x4/6/8 Microcontroller, 56 MHz, 64kB FLASH, 20-Pin RS stock no. 216-852 Mfr. Part No. STM32U031F8P6 Subtotal (1 unit) R 55,27(exc. VAT) R 55,27/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U031x4/6/8	TSSOP	Surface	-	20	ARM Cortex M0+	32bit	-	64kB	1 x 12 Bit	56MHz	-	12kB	3.6V	-	1	-	-	-40°C	-	53	125°C	-	-	-	ECOPACK2	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32WBA65MIF6TR, 32 bit ARM Cortex M33, STM32WBA6xxx Microcontroller, 100 MHz, 2MB FLASH, 88-Pin RS stock no. 330-296 Mfr. Part No. STM32WBA65MIF6TR Subtotal (1 unit) R 129,60(exc. VAT) R 129,60/unit Quantity	STMicroelectronics	-	Microcontroller	STM32WBA6xxx	Thin WLCSP	Surface	-	88	ARM Cortex M33	32bit	-	2MB	-	100MHz	-	512kB	3.6V	-	2	-	-	-40°C	-	86	105°C	3.46mm	5mm	-	ARIB STD-T66, FCC CFR47 part 15, ETSI EN 300 328, EN 300 440	3.46mm	1.71V	-	-	-	-	-