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 110-7760
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XC166 TQFP Surface Mount 100 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 14 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS-artikelnummer 166-0890
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XC166 TQFP Surface Mount 100 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 14 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS-artikelnummer 165-8058
Tillv. art.nrXMC1100T016F0064ABXUMA1
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XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB - - 6 - 1.8 → 5.5 V
RS-artikelnummer 914-0078
Tillv. art.nrXMC1100T016F0064ABXUMA1
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XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB - - 6 - 1.8 → 5.5 V
RS-artikelnummer 166-0842
Tillv. art.nrXMC4500F144F1024ACXQMA1
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XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 12 - 1.3 (Core) V, 3.3 (Digital) V
RS-artikelnummer 110-7450
Tillv. art.nrXMC4500F144F1024ACXQMA1
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61,38 kr
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XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 12 - 1.3 (Core) V, 3.3 (Digital) V
RS-artikelnummer 110-7117
Tillv. art.nrXE164FM72F80LRABKXUMA1
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XE166 LQFP Surface Mount 100 C166 16bit - 80MHz - - - 16 - 1.4 → 1.6 V
RS-artikelnummer 110-7184
Tillv. art.nrXE164F96F80LACFXUMA1
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67,51 kr
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XE166 LQFP Surface Mount 100 C166 16bit 768 kB 80MHz 64 kB - - 16 - 1.4 → 1.6 V
RS-artikelnummer 914-0069
Tillv. art.nrXMC4500F100K1024ACXQSA1
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101,85 kr
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XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 24 - 1.3 V, 3.3 V
RS-artikelnummer 124-1097
Tillv. art.nrXMC4100F64F128BAXQMA1
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XMC4000 TQFP Surface Mount 64 Cortex M4 32bit 128 kB 80MHz 20 kB 1 - 10 - 3.3 V
RS-artikelnummer 914-0056
Tillv. art.nrXMC4100F64K128ABXQSA1
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XMC4000 LQFP Surface Mount 64 ARM Cortex M4 32bit 128 kB 80MHz 20 kB 1 - 10 - 1.3 V, 3.3 V
RS-artikelnummer 124-1093
Tillv. art.nrXMC1401F064F0128AAXUMA1
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14,84 kr
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XMC1000 LQFP Surface Mount 64 Cortex-M0 32bit 64 kB 48MHz 16 kB - - 12 - 1.8 → 5.5 V
RS-artikelnummer 178-1501
Tillv. art.nrXMC4500F144K1024ACXQMA1
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67,006 kr
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XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 8 - 1.3 V, 3.3 V
RS-artikelnummer 166-0843
Tillv. art.nrXC167CI32F40FBBAKXQMA1
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166,828 kr
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XC166 TQFP Surface Mount 144 C166S V2 16bit 256 kB 20MHz 2 (DPRAM) kB, 4 (DSRAM) kB, 6 (PSRAM) kB - - 16 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS-artikelnummer 919-8828
Tillv. art.nrXC886C8FFA5VACKXUMA1
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22,639 kr
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XC866 TQFP Surface Mount 48 8051 8bit 32 kB 24MHz 15 kB, 256 B - 1 8 - 2.3 → 5.5 V
RS-artikelnummer 752-8423
Tillv. art.nrXE167F96F66LACFXUMA1
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107,23 kr
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XE166 LQFP Surface Mount 144 C166S V2 16 bit, 32 bit 768 kB 66MHz 82 kB - 3 24 6 3 to 5.5 V
RS-artikelnummer 917-3429
Tillv. art.nrXMC4300F100K256AAXQMA1
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XMC4300 LFQFP Surface Mount 100 ARM Cortex M4 - 256 kB 144MHz 128 kB 1 - 8 - -
RS-artikelnummer 110-7447
Tillv. art.nrXE169FH200F100LABKXQSA1
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172,06 kr
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XE166 LQFP Surface Mount 176 C166 16bit 1.6 MB 100MHz 112 kB - - 30 - 1.5 V
RS-artikelnummer 166-0922
Tillv. art.nrXE164F96F80LACFXUMA1
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XE166 LQFP Surface Mount 100 C166 16bit 768 kB 80MHz 64 kB - - 16 - 1.4 → 1.6 V
RS-artikelnummer 165-8192
Tillv. art.nrXMC4700F144K2048AAXQMA1
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XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 2.048 MB 144MHz 352 kB 1 - 8 - 1.3 V, 3.3 V