MPN

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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Temporarily out of stock STMicroelectronics STM32U585OIY6QTR, 8 bit ARM Cortex M33, STM32U585xx Microcontroller, 160 MHz, 2MB FLASH, 90-Pin WLCSP RS stock no. 330-361 Mfr. Part No. STM32U585OIY6QTR Subtotal (1 unit) R 162,31(exc. VAT) R 162,31/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U585xx	WLCSP	Surface	-	90	ARM Cortex M33	8bit	-	2MB	2 x 12 Bit	160MHz	-	786kB	3.6V	-	2	-	-	-40°C	-	136	125°C	7mm	9mm	-	SESIP3 and PSA Level 3 Certified	3.95mm	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32F405ZGT6TR, 32 bit ARM Cortex M4, STM32F405xx Microcontroller, 168 MHz, 1024kB FLASH, 144-Pin RS stock no. 330-248 Mfr. Part No. STM32F405ZGT6TR Subtotal (1 unit) R 157,19(exc. VAT) R 157,19/unit Quantity	STMicroelectronics	-	Microcontroller	STM32F405xx	LQFP	Surface	-	144	ARM Cortex M4	32bit	-	1024kB	2 x 12 Bit	168MHz	-	192kB	3.6V	-	2	-	-	-40°C	-	140	125°C	7mm	6.4mm	-	ECOPACK 2	12mm	1.8V	-	-	-	-	-
In Stock STMicroelectronics STM32H743ZIT6TR, 32 bit ARM Cortex M7, STM32H74 Microcontroller, 480 MHz, 2MB FLASH, 144-Pin LQFP RS stock no. 330-268 Mfr. Part No. STM32H743ZIT6TR Subtotal (1 unit) R 309,18(exc. VAT) R 309,18/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H74	LQFP	Surface	-	144	ARM Cortex M7	32bit	-	2MB	2 x 12 Bit	480MHz	-	1MB	3.6V	-	2	-	-	-40°C	-	168	85°C	7mm	5.3mm	-	ECOPACK2	9mm	1.62V	-	-	-	-	-
In Stock STMicroelectronics STM32L451CEU6TR, 32 bit ARM 32 Bit Cortex M4, STM32L451xx Microcontroller, 80 MHz, 512kB FLASH, RS stock no. 330-359 Mfr. Part No. STM32L451CEU6TR Subtotal (1 unit) R 126,48(exc. VAT) R 126,48/unit Quantity	STMicroelectronics	-	Microcontroller	STM32L451xx	QFN ECOPACK2	Surface	-	48	ARM 32 Bit Cortex M4	32bit	-	512kB	1 x 12 Bit	80MHz	-	160kB	3.6V	-	2	-	-	-40°C	-	83	125°C	7mm	7.3mm	-	ECOPACK2	9mm	1.71V	-	-	-	-	-
Temporarily out of stock STMicroelectronics STM32H523RET7TR, 16 bit ARM Cortex M33, STM32H523xx Microcontroller, 250 MHz, 512kB FLASH, 64-Pin RS stock no. 330-264 Mfr. Part No. STM32H523RET7TR Subtotal (1 unit) R 114,24(exc. VAT) R 114,24/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H523xx	LQFP	Surface	-	64	ARM Cortex M33	16bit	-	512kB	2 x 12 Bit	250MHz	-	272kB	3.6V	-	1	-	-	-40°C	-	112	105°C	2.78mm	5.3mm	-	ECOPACK2, SESIP3 and PSA Level 3 Certified assurance target	9mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32H503CBT7TR, 32 bit ARM Cortex M33, STM32H503xx Microcontroller, 250 MHz, 128kB FLASH, 48-Pin RS stock no. 330-261 Mfr. Part No. STM32H503CBT7TR Subtotal (1 unit) R 89,76(exc. VAT) R 89,76/unit Quantity	STMicroelectronics	-	Microcontroller	STM32H503xx	LQFP	Surface	-	48	ARM Cortex M33	32bit	-	128kB	1 x 12 Bit	250MHz	-	32kB	3.6V	-	1	-	-	-40°C	-	49	85°C	7mm	5.3mm	-	ECOPACK2	9mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics ST21NFCLAL0LA9 ARM Cortex M3, ST21NFCL Microcontroller, 32 MHz ECOPACK RS stock no. 330-435 Mfr. Part No. ST21NFCLAL0LA9 Subtotal (1 unit) R 26,11(exc. VAT) R 26,11/unit Quantity	STMicroelectronics	-	Microcontroller	ST21NFCL	ECOPACK	Surface	-	-	ARM Cortex M3	-	-	-	-	32MHz	-	-	5.1V	-	-	-	-	-30°C	-	-	85°C	0.4mm	2.5mm	-	NFC, ISO/IEC 18092, ISO/IEC 15693, ISO/IEC 14443, ECOPACK	-	2.4V	-	-	-	-	-
In Stock STMicroelectronics STM32U073KCU3, 32 bit ARM Cortex M0+, STM32U073x8/B/C Microcontroller, 56 MHz, 256kB FLASH, 32-Pin RS stock no. 330-644 Mfr. Part No. STM32U073KCU3 Subtotal (1 unit) R 34,87(exc. VAT) R 34,87/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U073x8/B/C	UFQFPN ECOPACK2	Surface	-	32	ARM Cortex M0+	32bit	-	256kB	1 x 12 Bit	56MHz	-	40kB	3.6V	-	2	-	-	-40°C	-	69	125°C	7mm	9mm	-	ECOPACK2	5mm	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32C071KBU7TR, 32 bit ARM Cortex M0+, STM32C0 Microcontroller, 48 MHz, 128kB FLASH, 32-Pin UFQFPN RS stock no. 330-385 Mfr. Part No. STM32C071KBU7TR Subtotal (1 unit) R 45,48(exc. VAT) R 45,48/unit Quantity	STMicroelectronics	-	Microcontroller	STM32C0	UFQFPN	Surface	-	32	ARM Cortex M0+	32bit	-	128kB	-	48MHz	-	24kB	3.6V	-	2	-	-	-40°C	-	61	125°C	1.2mm	6.4mm	-	ECOPACK 2	5mm	2V	-	-	-	-	-
Limited stock STMicroelectronics STM32G031C8T6TR, 32 bit ARM Cortex M0+ MCU, STM32G031x4/x6/x8 Microcontroller, 64 MHz, 64kB FLASH, RS stock no. 330-484 Mfr. Part No. STM32G031C8T6TR Subtotal (1 unit) R 59,50(exc. VAT) R 59,50/unit Quantity	STMicroelectronics	-	Microcontroller	STM32G031x4/x6/x8	LQFP	Surface	-	40	ARM Cortex M0+ MCU	32bit	-	64kB	2 x 12 Bit	64MHz	-	-	3.6V	-	2	-	-	-40°C	-	44	125°C	7mm	6.4mm	-	ECOPACK 2	6.5mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32U535VCT6Q, 32 bit ARM Cortex M33, STM32U535xx Microcontroller, 160 MHz, 256kB FLASH, 100-Pin RS stock no. 330-652 Mfr. Part No. STM32U535VCT6Q Subtotal (1 unit) R 123,22(exc. VAT) R 123,22/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U535xx	LQFP	Surface	-	100	ARM Cortex M33	32bit	USB, USART, UART, SPI, SMBus/PMBus, SDM, SAI, Parallel, LPUART, I2C, CAN FD	256kB	2 x 12 Bit	160MHz	-	274kB	3.6V	-	1	-	-	-40°C	-	82	125°C	7mm	9mm	-	ECOPACK2	16mm	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32L031F4P3TR, 32 bit ARM Cortex M7, STM32L031xx Microcontroller, 32 MHz, 16kB FLASH, 20-Pin TSSOP RS stock no. 330-508 Mfr. Part No. STM32L031F4P3TR Subtotal (1 unit) R 21,22(exc. VAT) R 21,22/unit Quantity	STMicroelectronics	-	Microcontroller	STM32L031xx	TSSOP	Surface	-	20	ARM Cortex M7	32bit	-	16kB	2 x 12 Bit	32MHz	-	8kB	3.6V	-	2	-	-	-40°C	-	38	125°C	7mm	7.3mm	-	ECOPACK2	6.5mm	1.65V	-	-	-	-	-
In Stock STMicroelectronics STM32U375VEI6Q, STM32U Ultra-Low-Power MCU, 96 MHz, 1024kB FLASH, 32-Pin LQFP RS stock no. 333-594 Mfr. Part No. STM32U375VEI6Q Subtotal (1 unit) R 207,95(exc. VAT) R 207,95/unit Quantity	STMicroelectronics	-	Ultra-Low-Power MCU	STM32U	LQFP	Surface	-	32	-	-	-	1024kB	-	96MHz	-	256kB	3.6V	-	-	-	-	-40°C	-	-	85°C	0.5mm	-	-	ISO/IEC 7816-3, JEDEC JESD47, EN/IEC 60335-1	-	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32C071CBT6NTR, 32 bit ARM Cortex M0+, STM32C0 Microcontroller, 48 MHz, 128kB FLASH, 48-Pin LQFP RS stock no. 330-375 Mfr. Part No. STM32C071CBT6NTR Subtotal (1 unit) R 16,99(exc. VAT) R 16,99/unit Quantity	STMicroelectronics	-	Microcontroller	STM32C0	LQFP	Surface	-	48	ARM Cortex M0+	32bit	-	128kB	-	48MHz	-	24kB	3.6V	-	2	-	-	-40°C	-	61	125°C	1.2mm	6.4mm	-	ECOPACK 2	5mm	2V	-	-	-	-	-
In Stock STMicroelectronics STM32L031C4T6TR, 32 bit ARM Cortex M7, STM32L031xx Microcontroller, 32 MHz, 16kB FLASH, 48-Pin LQFP RS stock no. 330-507 Mfr. Part No. STM32L031C4T6TR Subtotal (1 unit) R 26,11(exc. VAT) R 26,11/unit Quantity	STMicroelectronics	-	Microcontroller	STM32L031xx	LQFP	Surface	-	48	ARM Cortex M7	32bit	-	16kB	2 x 12 Bit	32MHz	-	8kB	3.6V	-	2	-	-	-40°C	-	38	125°C	7mm	7.3mm	-	ECOPACK2	6.5mm	1.65V	-	-	-	-	-
In Stock STMicroelectronics SR5E1E770C30F01X, 32 bit 32 Bit MCU, SR5 E1 Microcontroller, 306.7 MHz, 2MB FLASH, 100-Pin eLQFP176 RS stock no. 330-434 Mfr. Part No. SR5E1E770C30F01X Subtotal (1 unit) R 374,17(exc. VAT) R 374,17/unit Quantity	STMicroelectronics	-	Microcontroller	SR5 E1	eLQFP176	Surface	-	100	32 Bit MCU	32bit	-	2MB	8 Bit	306.7MHz	-	488kB	3.45V	-	8	-	-	-40°C	-	-	150°C	-	14mm	-	ISO/SAE 21434, ISO 26262 ASIL-D, AEC-Q100	14mm	3.15V	-	-	-	-	-
Last RS stock STMicroelectronics STM32MP255DAK3T, 16 bit ARM Cortex A35, ARM Cortex M33, STM32MP25xA/D Microcontroller, 1.5 GHz FLASH, RS stock no. 330-388 Mfr. Part No. STM32MP255DAK3T Subtotal (1 unit) R 304,29(exc. VAT) R 304,29/unit Quantity	STMicroelectronics	-	Microcontroller	STM32MP25xA/D	VFBGA-424	Surface	-	424	ARM Cortex A35, ARM Cortex M33	16bit	-	-	2 x 12 Bit	1.5GHz	-	808kB	3.6V	-	-	4GB	-	-40°C	-	172	125°C	7mm	16mm	-	ECOPACK2	14mm	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32U083KCU3, 32 bit ARM Cortex M0+, STM32U083xC Microcontroller, 56 MHz, 256kB FLASH, 32-Pin UFQFPN RS stock no. 330-647 Mfr. Part No. STM32U083KCU3 Subtotal (1 unit) R 89,39(exc. VAT) R 89,39/unit Quantity	STMicroelectronics	-	Microcontroller	STM32U083xC	UFQFPN ECOPACK2	Surface	-	32	ARM Cortex M0+	32bit	-	256kB	1 x 12 Bit	56MHz	-	40kB	3.6V	-	2	-	-	-40°C	-	69	125°C	7mm	9mm	-	PSA Level 1 and SESIP Level 3	5mm	1.71V	-	-	-	-	-
In Stock STMicroelectronics STM32G0C1VET3, 32 bit ARM 32 Bit Cortex M0, STM32G0C1xC/xE Microcontroller, 64 MHz, 512kB FLASH, RS stock no. 330-489 Mfr. Part No. STM32G0C1VET3 Subtotal (1 unit) R 118,10(exc. VAT) R 118,10/unit Quantity	STMicroelectronics	-	Microcontroller	STM32G0C1xC/xE	LQFP	Surface	-	100	ARM 32 Bit Cortex M0	32bit	-	512kB	2 x 12 Bit	64MHz	-	144kB	3.6V	-	3	-	-	-40°C	-	94	125°C	7mm	5.1mm	-	ECOPACK 2	6.5mm	1.7V	-	-	-	-	-
In Stock STMicroelectronics STM32F373VCT7, 32 bit ARM Cortex M4, STM32F373xx Microcontroller, 72 MHz, 256kB FLASH, 100-Pin LQFP RS stock no. 330-482 Mfr. Part No. STM32F373VCT7 Subtotal (1 unit) R 201,78(exc. VAT) R 201,78/unit Quantity	STMicroelectronics	-	Microcontroller	STM32F373xx	LQFP	Surface	-	100	ARM Cortex M4	32bit	-	256kB	2 x 12 Bit	72MHz	-	32kB	3.6V	-	2	-	-	-40°C	-	84	125°C	7mm	6.4mm	-	LIN, ISO/IEC 7816, IrDA, CAN 2.0B	16mm	2V	-	-	-	-	-