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

    Microchip
    AT89
    PDIL
    Through Hole
    40
    8051
    8bit
    16 kB
    40 MHz, 60 MHz
    1.28 kB
    0
    1 x 8 bit
    1
    0
    -
    1
    -
    2.7 → 5.5 V
    Microchip
    PIC18
    PDIP
    Surface Mount
    44
    PIC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    NXP
    LPC1100
    LQFP
    Surface Mount
    48
    ARM Cortex M0
    32bit
    32 kB
    50MHz
    8 kB
    0
    -
    2
    0
    1
    1
    0
    1.8 → 3.6 V
    Microchip
    PIC16
    PDIP
    Surface Mount
    14
    PIC
    8bit
    28 kB
    32MHz
    2 kB
    0
    0
    2
    0
    2
    1
    1
    2.3 → 5.5 V
    Microchip
    PIC16F
    SPDIP
    Through Hole
    28
    PIC
    8bit
    14.3 kB, 256 B
    20MHz
    368 B
    0
    2 x 10 bit
    1
    0
    1
    0
    1
    4 → 5.5 V
    Microchip
    ATmega
    PDIP
    Through Hole
    28
    AVR
    8bit
    32 kB
    20MHz
    2 kB
    0
    1
    2
    0
    1
    1
    1
    1.8 → 5.5 V
    Microchip
    PIC24EP
    TQFP
    Surface Mount
    64
    PIC
    16bit
    586 kB
    140MHz
    52 kB
    0
    16
    4
    2
    2
    4
    0
    3 → 3.6 V
    Microchip
    PIC32MX
    SPDIP
    Through Hole
    28
    PIC
    32bit
    64 kB
    50MHz
    256 kB
    0
    5
    2
    0
    2
    2
    0
    2.3 → 3.6 V
    STMicroelectronics
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Microchip
    ATtiny3217
    VQFN
    Surface Mount
    24
    AVR
    8bit
    32 kB
    20MHz
    2 kB
    0
    1 x 16 bit
    1
    0
    1
    1
    1
    1.8 → 5.5 V
    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
    Silicon Labs
    C8051F
    TQFP
    Surface Mount
    100
    8051
    8bit
    64 kB
    25MHz
    4.352 kB
    0
    5
    1
    0
    1
    2
    0
    2.7 → 3.6 V
    Silicon Labs
    C8051F
    LQFP
    Surface Mount
    32
    8051
    8bit
    16 kB
    25MHz
    2.304 kB
    1 x Device
    5
    1
    0
    1
    1
    0
    2.7 → 3.6 V
    STMicroelectronics
    STM32L4
    QFN
    Surface Mount
    48
    ARM Cortex M4
    32bit
    256 kB
    80MHz
    64 kB
    1
    -
    3
    1
    3
    1
    3
    1.71 → 3.6 V
    STMicroelectronics
    STM32F4
    LQFP
    Surface Mount
    64
    ARM Cortex M4
    32bit
    1.024 MB
    168MHz
    4 kB, 192 kB
    1 x Device, 1 x Host, 1 x OTG
    1 x 16 bit
    3
    2
    3
    2
    4
    1.8 → 3.6 V
    STMicroelectronics
    STM32H7
    LQFP
    Surface Mount
    100
    ARM Cortex M7
    32bit
    128 kB
    480MHz
    512 kB
    2
    -
    6
    1
    4
    4
    4
    1.71 → 3.6 V
    Microchip
    AT90
    TQFP
    Surface Mount
    64
    AVR
    8bit
    32 kB
    16MHz
    2 kB
    0
    1 x 8 bit
    1
    1
    1
    2
    2
    2.7 → 5.5 V
    Microchip
    PIC18F
    QFN
    Surface Mount
    44
    PIC
    8bit
    64 kB
    64MHz
    1.024 kB, 3.896 kB
    -
    5 x 10 bit
    2
    0
    2
    0
    2
    5.5 V
    STMicroelectronics
    STM32
    LQFP
    Surface Mount
    64
    32 bit MCU
    32bit
    2 Mbyte
    250MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Microchip
    PIC12F
    PDIP
    Through Hole
    8
    PIC
    8bit
    1024 x 14 words, 128 B
    20MHz
    64 B
    0
    -
    0
    0
    0
    0
    0
    2 to 5.5 V
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