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 Prix 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
N° de stock RS 539-0291
Référence fabricantMC68HC705C8ACFNE
MarqueNXP
14,24 €
Each
Unité
M68HC05 PLCC Surface Mount 44 HC05 8bit 8 kB 2.1MHz 304 B - - - 1 3 → 5.5 V
N° de stock RS 887-7388
Référence fabricantPIC18F67K22-I/PTRSL
MarqueMicrochip
3,135 €
Each (In a Tray of 160)
Unité
PIC18F TQFP Surface Mount 64 PIC 8bit 128 kB 64MHz 1 kB, 4 kB - 2 16 2 1.8 → 5.5 V
N° de stock RS 792-6041
Référence fabricantSTM32F429VIT6
12,66 €
Each
Unité
STM32F LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 180MHz 256 kB 2 2 16 6 3.6 V
N° de stock RS 919-6318
Référence fabricantSTM32F429VIT6
10,652 €
Each (In a Tray of 90)
Unité
STM32F LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 180MHz 256 kB 2 2 16 6 3.6 V
N° de stock RS 623-0689
Référence fabricantPIC18F2525-I/SP
MarqueMicrochip
5,38 €
Each
Unité
PIC18F SPDIP Through Hole 28 PIC 8bit 1.024 kB, 48 kB 40MHz 3.986 kB - 2 10 1 4.2 to 5.5 V
N° de stock RS 111-5557
Référence fabricantPIC16F18856-I/SO
MarqueMicrochip
1,19 €
Each (In a Pack of 5)
Unité
PIC16F SOIC Surface Mount 28 PIC 8bit 28 kB 32MHz 2.048 kB - 1 24 - 2.3 → 5.5 V
N° de stock RS 165-4174
Référence fabricantPIC16F18313-I/P
MarqueMicrochip
0,746 €
Each (In a Tube of 60)
Unité
PIC16F PDIP Through Hole 8 PIC 8bit 3.5 kB 32MHz 256 B - 1 5 - 2.3 → 5.5 V
N° de stock RS 800-7478
Référence fabricantMKE04Z128VLD4
MarqueNXP
2,05 €
Each (In a Pack of 2)
Unité
Kinetis E QFP Surface Mount 44 ARM Cortex M0+ 32bit 128 kB 48MHz - - - - - 5 V
N° de stock RS 544-1608
Référence fabricantPIC16F630-I/P
MarqueMicrochip
1,38 €
Each (In a Pack of 5)
Unité
PIC16F PDIP Through Hole 14 PIC 8bit 128 B, 1024 x 14 words 20MHz 64 B - - - - 2 → 5.5 V
N° de stock RS 860-7558
Référence fabricantSTM32F072R8T6TR
3,435 €
Each (In a Pack of 2)
Unité
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 16 kB 1 1 19 2 2 → 3.6 V
N° de stock RS 379-2780
Référence fabricantPIC16C745-I/SP
MarqueMicrochip
3,76 €
Each
Unité
PIC16C SPDIP Through Hole 28 PIC 8bit 8K x 14 words 24MHz 256 B 1 x Device 2 5 - 4.35 → 5.25 V
N° de stock RS 792-5928
Référence fabricantSTM32F030C6T6
1,518 €
Each (In a Pack of 5)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 4 kB - 1 12 1 3.6 V
N° de stock RS 165-5496
Référence fabricantSTM32F072R8T6TR
1,736 €
Each (On a Reel of 1000)
Unité
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 16 kB 1 1 19 2 2 → 3.6 V
N° de stock RS 144-5754
Référence fabricantPIC16F876A-I/SP
MarqueMicrochip
4,429 €
Each (In a Tube of 15)
Unité
PIC16F SPDIP Through Hole 28 PIC 8bit 14.3 kB, 256 B 20MHz 368 B - 2 5 1 4 → 5.5 V
N° de stock RS 772-0767
Référence fabricantEFM32LG980F256G-E-QFP100R
MarqueSilicon Labs
4,19 €
Each
Unité
EFM32LG LQFP Surface Mount 100 ARM Cortex M3 32bit 256 kB 48MHz 32 kB 1 4 8 - 1.85 → 3.8 V
N° de stock RS 889-5455
Référence fabricantPIC16F1824-I/SL
MarqueMicrochip
0,986 €
Each (In a Tube of 57)
Unité
PIC16F SOIC Surface Mount 14 PIC 8bit 4 kB 32MHz 512 kB - 4 8 1 1.8 → 5.5 V
N° de stock RS 901-5281
Référence fabricantR5F2136CCNFP#V0
7,86 €
Each (In a Bag of 2)
Unité
R8C / 36C LQFP Surface Mount 64 R8C CPU 16bit 4 (Flash) kB, 128 (ROM) kB 20MHz 10 kB - - 12 - 1.8 → 5.5 V
N° de stock RS 792-5921
Référence fabricantSTM32F030C8T6
1,886 €
Each (In a Pack of 5)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M0 32bit 64 kB 48MHz 8 kB - 1 12 2 3.6 V
N° de stock RS 124-2964
Référence fabricantCY8C4247LQI-BL483
5,955 €
Each (In a Pack of 2)
Unité
PSoC 4 BLE QFN Surface Mount 56 ARM Cortex M0 32bit 128 kB 48MHz 16 kB - - 1 - 1.8 → 5.5 V
N° de stock RS 165-4309
Référence fabricantPIC32MZ2048EFM064-I/PT
MarqueMicrochip
8,508 €
Each (In a Tray of 160)
Unité
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