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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

    10366 Products showing for Microcontrollers

    Each
    MYR25.48
    Microchip
    ATmega
    TQFP
    Surface Mount
    44
    AVR
    8bit
    32 kB
    16MHz
    2.5 kB
    1
    1 x 8 bit
    2
    0
    1
    1
    1
    2.7 → 5.5 V
    Each (In a Tube of 30)
    MYR12.398
    Microchip
    PIC16F
    PDIP
    Through Hole
    14
    PIC
    8bit
    256 B, 2048 x 14 words
    20MHz
    128 B
    0
    -
    1
    0
    1
    0
    0
    2 → 5.5 V
    Each (Supplied in a Tray)
    MYR13.624
    Silicon Labs
    EFM32ZG
    QFN
    Surface Mount
    32
    ARM Cortex M0+
    32bit
    32 kB
    24MHz
    4 kB
    -
    1 x 16 bit
    1
    -
    1
    2
    1
    1.9 → 3.8 V
    Each (Supplied in a Tray)
    MYR83.66
    Silicon Labs
    C8051F
    TQFP
    Surface Mount
    48
    8051
    8bit
    32 kB
    25MHz
    2.304 kB
    1
    1 x 16 bit
    1
    0
    1
    2
    0
    3.3 V
    Each (In a Tray of 40)
    MYR77.613
    STMicroelectronics
    STM32F4
    LQFP
    Surface Mount
    176
    ARM Cortex M4
    32bit
    2.048 MB
    180MHz
    256 kB
    2
    -
    -
    -
    -
    -
    -
    1.8 → 3.6 V
    Each (Supplied in a Tray)
    MYR49.855
    Silicon Labs
    EFM32
    LQFP
    Surface Mount
    100
    ARM Cortex M3
    32bit
    256 kB
    48MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (Supplied in a Tray)
    MYR27.958
    Silicon Labs
    C8051F
    LQFP
    Surface Mount
    32
    8051
    8bit
    32 kB
    48MHz
    2.304 kB
    1
    1 x 16 bit
    1
    0
    2
    2
    0
    3.3 V
    Each
    MYR77.99
    STMicroelectronics
    STM32F2
    LQFP
    Surface Mount
    144
    ARM Cortex M3
    32bit
    1.024 MB
    120MHz
    128 kB
    2
    2 x 16 bit
    3
    2
    3
    2
    4
    1.8 → 3.6 V
    Each (In a Pack of 10)
    MYR4.613
    Microchip
    ATtiny417
    VQFN
    Surface Mount
    24
    AVR
    8bit
    4 kB
    20MHz
    256 B
    0
    1
    1
    0
    1
    1
    0
    1.8 → 5.5 V
    Each (Supplied in a Tray)
    MYR69.32
    STMicroelectronics
    STM32F4
    UFBGA
    Surface Mount
    176
    ARM Cortex M4
    32bit
    512 kB
    168MHz
    192 + 4 kB
    2
    1 x 32 bit
    3
    2
    3
    2
    4
    3.6 V
    Each (Supplied in a Tray)
    MYR69.84
    STMicroelectronics
    STM32H7
    LQFP
    Surface Mount
    100
    ARM Cortex M7
    32bit
    2 MB
    400MHz
    1 MB
    2
    2 x 32 bit
    6
    2
    4
    4
    4
    3.6 (Maximum) V
    Each (Supplied in a Tray)
    MYR47.74
    Silicon Labs
    EFM32
    QFN
    Surface Mount
    64
    ARM Cortex M3
    32bit
    256 kB
    48MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS Stock No. 257-6326P
    • Mfr. Part No. EFM32PG23B310F128IM48-C
    Each (Supplied in a Tray)
    MYR22.83
    Silicon Labs
    Gecko 23
    QFN
    Surface Mount
    48
    32-bit ARM Cortex M4
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS Stock No. 257-6316P
    • Mfr. Part No. EFM32PG23B200F64IM40-C
    Each (Supplied in a Tray)
    MYR16.525
    Silicon Labs
    Gecko 23
    QFN
    Surface Mount
    40
    32-bit ARM Cortex M4
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (In a Pack of 10)
    MYR5.548
    Microchip
    ATTINY
    VQFN
    Surface Mount
    24
    AVR
    12bit
    16 kB
    20MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (Supplied in a Tray)
    MYR22.365
    Silicon Labs
    EZR32WG
    QFN
    Surface Mount
    64
    ARM Cortex M4
    32bit
    128 kB
    48MHz
    32 kB
    0
    1
    2
    0
    2
    2
    2
    1.98 → 3.8 V
    Each (In a Pack of 10)
    MYR4.399
    Microchip
    ATTINY
    VQFN
    Surface Mount
    20
    AVR
    12bit
    8 kB
    20MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (Supplied on a Reel)
    MYR4.778
    Texas Instruments
    MSP430
    TSSOP
    PCB
    16
    CPU
    16bit
    4 kB
    16MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (In a Pack of 10)
    MYR5.133
    Microchip
    PIC16
    SOIC
    Surface Mount
    20
    PIC
    8bit
    14 kB
    32MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (In a Tray of 40)
    MYR85.545
    STMicroelectronics
    STM32F4
    LQFP
    Surface Mount
    176
    ARM Cortex M4
    32bit
    2.048 MB
    180MHz
    256 kB
    2
    2 x 16 bit
    6
    2
    3
    4
    4
    3.6 V
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