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.

What are they made up of?

Microcontrollers contain single or multiple processors (sometimes referred to as CPUs), 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 there?

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?

  • Computers
  • Automotive
  • Robotics
  • Automation
  • Medical equipment
  • Home appliances

...
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RS-artikelnummer 539-0184
Tillv. art.nrMC68HC11E1CFNE2
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M68HC11 PLCC Surface Mount 52 HC11 8bit 512 B 2MHz 512 B - - 8 1 3 → 5.5 V
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Tillv. art.nrLPC1766FBD100,551
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90,27 kr
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LPC17 LQFP Surface Mount 100 ARM Cortex M3 32bit 256 kB 100MHz 64 kB 1 x Device, 1 x Host, 1 x OTG 2 8 3 3.3 V
RS-artikelnummer 166-0236
Tillv. art.nrLPC1766FBD100,551
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67,937 kr
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LPC17 LQFP Surface Mount 100 ARM Cortex M3 32bit 256 kB 100MHz 64 kB 1 x Device, 1 x Host, 1 x OTG 2 8 3 3.3 V
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Tillv. art.nrMC9S12DG128CPVE
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HCS12 LQFP Surface Mount 112 HSC12 16bit 128 kB 25MHz 8 kB - 2 8 2 2.5 → 5 V
RS-artikelnummer 813-4186
Tillv. art.nrMC9S12DG128CPVE
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172,68 kr
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HCS12 LQFP Surface Mount 112 HSC12 16bit 128 kB 25MHz 8 kB - 2 8 2 2.5 → 5 V
RS-artikelnummer 397-212
Tillv. art.nrMC9S08AW60CFGE
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49,06 kr
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HCS08 LQFP Surface Mount 44 S08 8bit 63.28 kB 40MHz 2.048 kB - 2 8 1 2.7 → 5.5 V
RS-artikelnummer 168-9384
Tillv. art.nrMC9S08AW60CFGE
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HCS08 LQFP Surface Mount 44 S08 8bit 63.28 kB 40MHz 2.048 kB - 2 8 1 2.7 → 5.5 V
RS-artikelnummer 786-2120
Tillv. art.nrMK20DX256VLH7
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78,79 kr
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Kinetis K2x LQFP Surface Mount 64 ARM Cortex M4 - 288 kB 72MHz 66 kB 1 1 2 1 1.71 → 3.6 V
RS-artikelnummer 823-2362
Tillv. art.nrMKL03Z32VFK4
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20,266 kr
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Kinetis L QFN Surface Mount 24 ARM Cortex M0+ 32bit 32 kB 48MHz 2 kB - 2 7 1 1.71 → 3.6 V
RS-artikelnummer 785-7519
Tillv. art.nrMK70FN1M0VMJ15
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167,71 kr
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Kinetis K7x BGA Surface Mount 256 ARM Cortex M4 - 1.024 MB 150MHz 128 kB 2 2 - 3 1.71 → 3.6 V
RS-artikelnummer 539-0178
Tillv. art.nrMC68HC11E0CFNE2
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147,021 kr
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M68HC11 PLCC Surface Mount 52 HC11 8bit - 2MHz 512 B - - 8 1 3 → 5.5 V
RS-artikelnummer 169-7143
Tillv. art.nrMK70FN1M0VMJ15
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Kinetis K7x BGA Surface Mount 256 ARM Cortex M4 - 1.024 MB 150MHz 128 kB 2 2 - 3 1.71 → 3.6 V
RS-artikelnummer 212-060
Tillv. art.nrMC9S08GT16ACFBE
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56,66 kr
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HCS08 QFP Surface Mount 44 S08 8bit 16 kB 40MHz 2 kB - 2 8 1 1.8 → 3.6 V
RS-artikelnummer 169-7157
Tillv. art.nrMK20DX256VLH7
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58,773 kr
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Kinetis K2x LQFP Surface Mount 64 ARM Cortex M4 - 288 kB 72MHz 66 kB 1 1 2 1 1.71 → 3.6 V
RS-artikelnummer 178-7031
Tillv. art.nrMC9S08GT16ACFBE
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39,495 kr
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HCS08 QFP Surface Mount 44 S08 8bit 16 kB 40MHz 2 kB - 2 8 1 1.8 → 3.6 V
RS-artikelnummer 396-516
Tillv. art.nrMCF52230CAL60
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MCF522 LQFP Surface Mount 112 ColdFire 32bit 128 kB 60MHz 32 kB - 1 8 1 3 → 3.6 V
RS-artikelnummer 823-2378
Tillv. art.nrMKL03Z16VFG4
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Kinetis L QFN Surface Mount 16 ARM Cortex M0+ 32bit 16 kB 48MHz 2 kB - 2 7 1 1.71 → 3.6 V
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Tillv. art.nrLPC4330FBD144,551
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LPC43 LQFP Surface Mount 144 ARM Cortex M4 32bit - 204MHz 264 kB 1 x Device, 1 x Host, 1 x OTG 1 8 4 3.3 V
RS-artikelnummer 166-0018
Tillv. art.nrLPC4330FBD144,551
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73,466 kr
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LPC43 LQFP Surface Mount 144 ARM Cortex M4 32bit - 204MHz 264 kB 1 x Device, 1 x Host, 1 x OTG 1 8 4 3.3 V
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Tillv. art.nrMKE04Z128VLD4
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Kinetis E QFP Surface Mount 44 ARM Cortex M0+ 32bit 128 kB 48MHz - - - - - 5 V