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. 746-8217
Mfr. Part No.STM32F405RGT6
kr 92,82
Each
Units
STM32F LQFP Surface Mount 64 ARM Cortex M4F 32bit 1.024 MB 168MHz 4 kB, 192 kB 1 x Device, 1 x Host, 1 x OTG 1 16 3 1.8 → 3.6 V
RS Stock No. 746-8226
Mfr. Part No.STM32F407VGT6
kr 102,69
Each
Units
STM32F LQFP Surface Mount 100 ARM Cortex M4F 32bit 1.024 MB 168MHz 4 kB, 192 kB 1 x Device, 1 x Host, 1 x OTG 1 16 3 1.8 → 3.6 V
RS Stock No. 920-6468
Mfr. Part No.STM32F407VGT6
kr 88,517
Each (In a Tray of 90)
Units
STM32F LQFP Surface Mount 100 ARM Cortex M4F 32bit 1.024 MB 168MHz 4 kB, 192 kB 1 x Device, 1 x Host, 1 x OTG 1 16 3 1.8 → 3.6 V
RS Stock No. 165-4310
Mfr. Part No.PIC32MZ1024EFG064-I/PT
BrandMicrochip
kr 84,542
Each (In a Tray of 160)
Units
PIC32 TQFP Surface Mount 64 MIPS® MicroAptiv™ 32bit 160 (Boot Flash) kB, 1024 (Flash) kB 200MHz 512 kB 3 1 24 4 3.3 V
RS Stock No. 920-6456
Mfr. Part No.STM32F405RGT6
kr 72,084
Each (In a Tray of 160)
Units
STM32F LQFP Surface Mount 64 ARM Cortex M4F 32bit 1.024 MB 168MHz 4 kB, 192 kB 1 x Device, 1 x Host, 1 x OTG 1 16 3 1.8 → 3.6 V
RS Stock No. 168-7330
Mfr. Part No.STM32F100RBT6B
kr 30,602
Each (In a Tray of 160)
Units
STM32F LQFP Surface Mount 64 ARM Cortex M3 32bit 128 kB 24MHz 8 kB - 7 16 2 2 → 3.6 V
RS Stock No. 168-7326
Mfr. Part No.STM32F100C8T6B
kr 18,53
Each (In a Tray of 250)
Units
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB - 7 10 2 2 → 3.6 V
RS Stock No. 165-4308
Mfr. Part No.PIC32MZ2048EFH064-I/PT
BrandMicrochip
kr 96,569
Each (In a Tray of 160)
Units
PIC32 TQFP Surface Mount 64 MIPS® MicroAptiv™ 32bit 2.048 (Flash) MB, 160 (Boot Flash) kB 200MHz 512 kB 3 1 24 4 3.3 V
RS Stock No. 919-6302
Mfr. Part No.STM32F405RGT6TR
kr 52,074
Each (On a Reel of 1000)
Units
STM32F LQFP Surface Mount 64 ARM Cortex M4 32bit 1.024 MB 168MHz 192 kB 2 2 16 3 3.6 V
RS Stock No. 145-9162
Mfr. Part No.PIC16F1615-I/SL
BrandMicrochip
kr 9,125
Each (In a Tube of 57)
Units
PIC16F SOIC Surface Mount 14 PIC 8bit 14 kB 32MHz 1.024 kB - 1 8 - 2.3 → 5.5 V
RS Stock No. 818-1233
Mfr. Part No.MKL16Z128VFM4
BrandNXP
kr 33,10
Each (In a Pack of 2)
Units
Kinetis L QFN Surface Mount 32 ARM Cortex M0+ 32bit 128 kB 48MHz 16 kB - 2 - 2 1.71 → 3.6 V
RS Stock No. 169-7312
Mfr. Part No.MKL16Z128VFM4
BrandNXP
kr 23,772
Each (In a Tray of 490)
Units
Kinetis L QFN Surface Mount 32 ARM Cortex M0+ 32bit 128 kB 48MHz 16 kB - 2 - 2 1.71 → 3.6 V
RS Stock No. 169-7434
Mfr. Part No.MKL03Z8VFG4
BrandNXP
kr 5,239
Each (In a Tray of 490)
Units
Kinetis L QFN Surface Mount 16 ARM Cortex M0+ 32bit 8 kB 48MHz 2 kB - 2 7 1 1.71 → 3.6 V
RS Stock No. 823-2375
Mfr. Part No.MKL03Z8VFG4
BrandNXP
kr 5,606
Each (In a Pack of 5)
Units
Kinetis L QFN Surface Mount 16 ARM Cortex M0+ 32bit 8 kB 48MHz 2 kB - 2 7 1 1.71 → 3.6 V
RS Stock No. 916-3740
Mfr. Part No.PIC16F1615-I/SL
BrandMicrochip
kr 10,308
Each (In a Pack of 5)
Units
PIC16F SOIC Surface Mount 14 PIC 8bit 14 kB 32MHz 1.024 kB - 1 8 - 2.3 → 5.5 V
RS Stock No. 723-8873
Mfr. Part No.STM32F100C8T6B
kr 29,01
Each
Units
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB - 7 10 2 2 → 3.6 V
RS Stock No. 165-8195
Mfr. Part No.STM32F072RBT6
kr 22,009
Each (In a Tray of 160)
Units
STM32 LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB, 128 kB 48MHz 16 kB 1 - 19 - 2 → 3.6 V
RS Stock No. 379-2875
Mfr. Part No.PIC16F628-04/SO
BrandMicrochip
kr 23,93
Each
Units
PIC16F SOIC Surface Mount 18 PIC 8bit 128 x 8 words, 2048 x 14 words 4MHz 224 B - 1 - - 3 → 5.5 V
RS Stock No. 169-8231
Mfr. Part No.Z84C3006PEG
BrandZilog
kr 47,178
Each (In a Tube of 15)
Units
Z80 PDIP Through Hole 28 Z8 8bit - 6.17MHz - - - - - 4.5 → 5.5 V
RS Stock No. 813-4189
Mfr. Part No.MC9S12A64CFUE
BrandNXP
kr 151,24
Each
Units
HCS12 QFP Surface Mount 80 HSC12 16bit 64 kB 25MHz 4 kB - 2 8 1 2.5 → 5 V
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