Microcontrollers | 8 Bit, 16 Bit & 32 Bit Pic MCUs | RS
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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

    9613 Products showing for Microcontrollers

    STMicroelectronics
    STM32F0
    LQFP
    Surface Mount
    48
    ARM Cortex M0
    32bit
    128 kB
    48MHz
    16 kB
    1
    1 x 16 bit
    -
    -
    -
    -
    -
    2 → 3.6 V
    Microchip
    -
    TQFP
    Surface Mount
    80
    -
    16bit
    144 kB
    25MHz
    8.192 kB
    0
    8
    2
    2
    1
    2
    0
    2.5 to 5.5 V
    Microchip
    ATtiny861
    PDIP
    Through Hole
    20
    AVR
    8bit
    8 kB
    20MHz
    512 B
    0
    1
    1
    0
    1
    0
    0
    1.8 → 5.5 V
    STMicroelectronics
    STM32H7
    LQFP
    Surface Mount
    100
    ARM Cortex M7
    32bit
    1.024 MB
    550MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    STMicroelectronics
    STM32G0
    LQFP
    Surface Mount
    48
    ARM Cortex M0+
    32bit
    128 kB
    64MHz
    36 kB
    -
    -
    2
    -
    2
    -
    4
    2 → 3.6 V
    Microchip
    ATtiny44A
    SOIC
    Surface Mount
    14
    AVR
    8bit
    4 kB
    20MHz
    256 B
    0
    1 x 8 bit
    1
    0
    1
    0
    0
    5.5 (Maximum) V
    NXP
    Kinetis K6x
    LQFP
    Surface Mount
    144
    ARM Cortex M4
    -
    1.024 MB
    120MHz
    128 kB
    2
    2
    3
    2
    2
    6
    0
    1.71 → 3.6 V
    STMicroelectronics
    STM32F4
    LQFP
    Surface Mount
    144
    ARM Cortex M4
    32bit
    1.024 MB
    168MHz
    192 kB
    2
    -
    -
    -
    -
    -
    -
    1.8 → 3.6 V
    STMicroelectronics
    STM32L4
    LQFP
    Surface Mount
    100
    ARM Cortex M4
    32bit
    256 kB
    80MHz
    64 kB
    1
    -
    3
    1
    3
    1
    3
    1.71 → 3.6 V
    STMicroelectronics
    STM32L4
    LQFP
    Surface Mount
    100
    ARM Cortex M4
    32bit
    256 kB
    80MHz
    64 kB
    1
    -
    3
    1
    3
    1
    3
    1.71 → 3.6 V
    Microchip
    PIC18F
    PDIP
    Through Hole
    40
    PIC
    8bit
    1.024 kB, 64 kB
    40MHz
    3.986 kB
    0
    2
    1
    0
    1
    0
    1
    2 to 5.5 V
    Microchip
    PIC12
    SOIC
    Surface Mount
    8
    PIC
    8bit
    512 x 12 words
    4MHz
    25 B
    0
    -
    0
    0
    0
    0
    0
    2 → 5.5 V
    Renesas Electronics
    RX65N
    QFP
    Surface Mount
    100
    RXv2
    32bit
    32 kB
    120MHz
    640 kB
    1
    -
    14
    2
    14
    11
    0
    2.7 → 3.6 V
    Renesas Electronics
    RL78/G12
    LSSOP
    Surface Mount
    30
    RL78
    16bit
    16 kB
    24MHz
    2 kB
    0
    -
    3
    0
    4
    3
    0
    1.6 → 5.5 V
    Microchip
    PIC18
    TQFP
    Surface Mount
    44
    PIC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    STMicroelectronics
    STM32L4
    LQFP
    Surface Mount
    64
    ARM Cortex M4
    32bit
    1 MB
    80MHz
    320 kB
    1
    -
    3
    2
    4
    2
    3
    1.71 → 3.6 V
    Microchip
    PIC16F
    SOIC
    Surface Mount
    18
    PIC
    8bit
    1.792 kB, 128 B
    20MHz
    128 B
    0
    1 x 10 bit
    1
    0
    1
    0
    0
    4 → 5.5 V
    Microchip
    PIC16C
    SOIC
    Surface Mount
    28
    PIC
    8bit
    8K x 14 words
    24MHz
    256 B
    1 x Device
    2 x 10 bit
    0
    0
    0
    0
    1
    4.35 → 5.25 V
    STMicroelectronics
    STM32F0
    LQFP
    Surface Mount
    32
    ARM Cortex M0
    32bit
    32 kB
    48MHz
    4 kB
    0
    -
    1
    0
    1
    0
    1
    2.4 → 3.6 V
    STMicroelectronics
    STM32F1
    LQFP
    Surface Mount
    48
    ARM Cortex M3
    32bit
    64 kB
    72MHz
    20 kB
    1 x Device
    1 x 16 bit
    2
    1
    2
    0
    3
    2 → 3.6 V
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