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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Description Price Family Name Package Type Mounting Type Pin Count Device Core Data Bus Width Program Memory Size Maximum Frequency RAM Size USB Channels Number of PWM Units ADC Channels Number of SPI Channels Typical Operating Supply Voltage
RS Stock No. 914-0084
Mfr. Part No.XMC1301T038F0032ABXUMA1
BrandInfineon
MYR9.502
Each (In a Pack of 5)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 32 kB 66.4MHz 16 kB - - 16 - 1.8 → 5.5 V
RS Stock No. 906-2912
Mfr. Part No.XMC4500F144K1024ACXQMA1
BrandInfineon
MYR45.89
Each
units
XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 8 - 1.3 V, 3.3 V
New
RS Stock No. 218-4417
Mfr. Part No.XMC1100T038X0064ABXUMA1
BrandInfineon
MYR5.524
Each (On a Reel of 3000)
units
XMC1100 TSSOP Through Hole 38 ARM Cortex M0 32bit 64 kB 32MHz - - - - - -
RS Stock No. 124-1099
Mfr. Part No.XMC4400F100K512BAXQMA1
BrandInfineon
MYR144.24
Each
units
XMC4000 LQFP Surface Mount 100 Cortex M4 32bit 512 kB 120MHz 80 kB 1 - 24 - 3.3 V
New
RS Stock No. 218-4418
Mfr. Part No.XMC1100T038X0064ABXUMA1
BrandInfineon
MYR7.11
Each (In a Pack of 10)
units
XMC1100 TSSOP Through Hole 38 ARM Cortex M0 32bit 64 kB 32MHz - - - - - -
RS Stock No. 124-1093
Mfr. Part No.XMC1401F064F0128AAXUMA1
BrandInfineon
MYR72.23
Each
units
XMC1000 LQFP Surface Mount 64 Cortex-M0 32bit 64 kB 48MHz 16 kB - - 12 - 1.8 → 5.5 V
RS Stock No. 165-8058
Mfr. Part No.XMC1100T016F0064ABXUMA1
BrandInfineon
MYR6.906
Each (On a Reel of 3000)
units
XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB - - 6 - 1.8 → 5.5 V
RS Stock No. 917-3407
Mfr. Part No.XMC4700F100K2048AAXQMA1
BrandInfineon
MYR73.61
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 144MHz 352 kB 1 - 8 - 1.3 V, 3.3 V
RS Stock No. 110-7450
Mfr. Part No.XMC4500F144F1024ACXQMA1
BrandInfineon
MYR44.79
Each
units
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 Stock No. 166-0842
Mfr. Part No.XMC4500F144F1024ACXQMA1
BrandInfineon
MYR40.834
Each (In a Tray of 360)
units
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 Stock No. 914-0078
Mfr. Part No.XMC1100T016F0064ABXUMA1
BrandInfineon
MYR8.55
Each (In a Pack of 6)
units
XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB - - 6 - 1.8 → 5.5 V
RS Stock No. 110-7493
Mfr. Part No.XMC4500E144X1024ACXQSA1
BrandInfineon
MYR46.38
Each
units
XMC4000 LFBGA Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB - - 32 - 1.3 (Core) V, 3.3 (Digital) V
RS Stock No. 165-8088
Mfr. Part No.XMC1301T038F0032ABXUMA1
BrandInfineon
MYR6.249
Each (On a Reel of 3000)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 32 kB 66.4MHz 16 kB - - 16 - 1.8 → 5.5 V
RS Stock No. 178-1501
Mfr. Part No.XMC4500F144K1024ACXQMA1
BrandInfineon
MYR44.468
Each (In a Tray of 60)
units
XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 8 - 1.3 V, 3.3 V
RS Stock No. 914-0069
Mfr. Part No.XMC4500F100K1024ACXQSA1
BrandInfineon
MYR53.48
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 24 - 1.3 V, 3.3 V
RS Stock No. 165-8225
Mfr. Part No.XMC4700F100K2048AAXQMA1
BrandInfineon
MYR61.805
Each (In a Tray of 540)
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 144MHz 352 kB 1 - 8 - 1.3 V, 3.3 V
RS Stock No. 165-8224
Mfr. Part No.XMC4500F100K1024ACXQSA1
BrandInfineon
MYR41.632
Each (In a Tray of 90)
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 24 - 1.3 V, 3.3 V
RS Stock No. 166-0791
Mfr. Part No.XMC4500E144X1024ACXQSA1
BrandInfineon
MYR57.722
Each (In a Tray of 240)
units
XMC4000 LFBGA Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB - - 32 - 1.3 (Core) V, 3.3 (Digital) V