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

    10723 Products showing for Microcontrollers

    Microchip
    ATtiny48
    TQFP
    Surface Mount
    32
    AVR
    8bit
    4 kB
    12MHz
    256 B
    0
    1
    1
    0
    1
    0
    0
    1.8 → 5.5 V
    Microchip
    ATmega
    TQFP
    Surface Mount
    44
    AVR
    8bit
    128 kB
    20MHz
    16 kB
    0
    1
    3
    0
    1
    2
    2
    1.8 → 5.5 V
    Microchip
    PIC16F
    SOIC
    Surface Mount
    14
    PIC
    8bit
    14 kB
    32MHz
    1 kB
    0
    1 x 10 bit
    1
    0
    1
    2
    2
    5.5 (Maximum) V
    Microchip
    ATtiny13
    SOIC
    Surface Mount
    8
    AVR
    8bit
    1 kB
    20MHz
    64 B
    0
    1
    1
    0
    0
    0
    0
    1.8 → 5.5 V
    Microchip
    PIC16
    SSOP
    PCB Mount
    28
    PIC16
    8bit
    28 KB
    64MHz
    -
    -
    -
    -
    -
    -
    -
    -
    -
    STMicroelectronics
    ARM Cortex M0+
    LQFP
    Surface Mount
    48
    ARM 32-bit Cortex-M0
    32bit
    16 KB
    48MHz
    6 KB
    -
    -
    -
    -
    -
    -
    -
    -
    Microchip
    ATmega
    TQFP
    Surface Mount
    44
    AVR
    8bit
    32 kB
    16MHz
    2 kB
    0
    1
    1
    0
    1
    1
    1
    2.7 → 5.5 V
    STMicroelectronics
    STM32F4
    LQFP
    Surface Mount
    100
    ARM Cortex M4
    32bit
    1.024 MB
    180MHz
    256 kB
    2
    -
    -
    -
    -
    -
    -
    1.7 → 3.6 V
    Microchip
    ATmega
    TQFP
    Surface Mount
    44
    AVR
    8bit
    128 kB
    20MHz
    16 kB
    0
    1
    3
    0
    1
    2
    2
    1.8 → 5.5 V
    Zilog
    Z80
    PQFP
    Surface Mount
    80
    Z80
    8bit
    -
    20MHz
    -
    0
    -
    0
    0
    0
    2
    0
    3 → 5.5 V
    Zilog
    Z8 Encore! XP
    LQFP
    Surface Mount
    44
    Z8
    8bit
    16 kB
    20MHz
    2 kB
    0
    1 x 16 bit
    1
    0
    1
    2
    0
    3 → 3.6 V
    Microchip
    ATmega
    TQFP
    Surface Mount
    44
    AVR
    8bit
    128 kB
    20MHz
    16 kB
    0
    1
    3
    0
    1
    2
    2
    1.8 → 5.5 V
    Microchip
    ATtiny4313
    PDIP
    Through Hole
    20
    AVR
    8bit
    4 kB
    20MHz
    256 B
    0
    1
    2
    0
    1
    1
    0
    1.8 → 5.5 V
    Microchip
    ATSAMD
    TQFP
    Surface Mount
    48
    ARM Cortex M0+
    32bit
    256 kB
    48MHz
    32 kB
    1
    1
    6
    0
    6
    6
    6
    3.6 (Maximum) V
    Microchip
    PIC16F
    PDIP
    Through Hole
    20
    PIC
    8bit
    8 kB
    32MHz
    1.024 kB
    0
    -
    2
    0
    2
    0
    1
    2.5 to 5.5 V
    NXP
    HCS12
    LQFP
    Surface Mount
    112
    HSC12
    16bit
    128 kB
    50MHz
    8 kB
    0
    2 x 8/16 bit
    1
    0
    1
    0
    0
    3.13 → 5.5 V
    Microchip
    PIC16F
    SOIC
    Surface Mount
    14
    PIC
    8bit
    3.5 kB
    20MHz
    128 B
    0
    1 x 10 bit
    0
    0
    0
    0
    0
    5.5 (Maximum) V
    Microchip
    PIC16F
    SOIC
    Surface Mount
    18
    PIC
    8bit
    128 B, 2048 x 14 words
    20MHz
    224 B
    0
    1 x 10 bit
    0
    0
    0
    0
    1
    3 → 5.5 V
    Silicon Labs
    Gecko 23
    QFN
    Surface Mount
    48
    32-bit ARM Cortex M4
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Microchip
    PIC16F
    PDIP
    Through Hole
    18
    PIC
    8bit
    1K x 14 words, 64 B
    10MHz
    68 B
    0
    -
    0
    0
    0
    0
    0
    4 → 6 V
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