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 746-8223
Référence fabricantSTM32F407VET6
11,52 €
Each
Unité
STM32F LQFP Surface Mount 100 ARM Cortex M4F 32bit 512 kB 168MHz 4 kB, 192 kB 1 x Device, 1 x Host, 1 x OTG 1 16 3 1.8 → 3.6 V
N° de stock RS 168-7379
Référence fabricantSTM8S207R6T6
1,687 €
Each (In a Tray of 160)
Unité
STM8S LQFP Surface Mount 64 STM8 8bit 1.024 kB, 32 kB 24MHz 6 kB - 1 16 1 2.95 → 5.5 V
N° de stock RS 829-7142
Référence fabricantSTM32F030C8T6TR
1,832 €
Each (In a Pack of 5)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M0 32bit 64 kB 48MHz 8 kB - 1 12 2 2.4 → 3.6 V
N° de stock RS 889-5705
Référence fabricantPIC16F630-I/P
MarqueMicrochip
1,272 €
Each (In a Tube of 30)
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 889-5095
Référence fabricantPIC18F2525-I/SP
MarqueMicrochip
5,178 €
Each (In a Tube of 15)
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 168-9903
Référence fabricantC8051F340-GQ
MarqueSilicon Labs
7,525 €
Each (In a Tray of 250)
Unité
C8051F TQFP Surface Mount 48 8051 8bit 64 kB 48MHz 4.352 kB 2 2 17 1 2.7 → 5.25 V
N° de stock RS 810-7512
Référence fabricantSTM32F100C8T7B
3,18 €
Each (In a Pack of 2)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB - 1 10 2 2 → 3.6 V
N° de stock RS 165-6734
Référence fabricantSTM32F100C8T7B
2,219 €
Each (In a Tray of 250)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB - 1 10 2 2 → 3.6 V
N° de stock RS 715-4104
Référence fabricantPIC18F67K22-I/PTRSL
MarqueMicrochip
3,77 €
Each
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 829-1285
Référence fabricantR5F101GCAFB#V0
2,59 €
Each (In a Pack of 2)
Unité
RL78/G13 LFQFP Surface Mount 48 RL78 16bit 32 kB 32MHz 2 kB - - 10 5 1.6 → 5.5 V
N° de stock RS 869-6123
Référence fabricantPIC32MX270F256B-I/SP
MarqueMicrochip
3,75 €
Each (In a Pack of 2)
Unité
PIC32MX PDIP Through Hole 28 M4K, MIPS32 32bit 256 kB 40MHz 64 kB 1 x OTG - 9 2 2.3 → 3.6 V
N° de stock RS 916-3734
Référence fabricantPIC16F18313-I/P
MarqueMicrochip
0,809 €
Each (In a Pack of 10)
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 757-8361
Référence fabricantR5F2136CCNFP#V0
4,54 €
Each
Unité
R8C LFQFP Surface Mount 64 R8C 16bit 128 kB 20MHz 10 kB - 1 12 - 1.8 → 5.5 V
N° de stock RS 757-4719
Référence fabricantC8051F340-GQ
MarqueSilicon Labs
7,93 €
Each
Unité
C8051F TQFP Surface Mount 48 8051 8bit 64 kB 48MHz 4.352 kB 2 2 17 1 2.7 → 5.25 V
N° de stock RS 144-5731
Référence fabricantPIC16F18856-I/SO
MarqueMicrochip
1,08 €
Each (In a Tube of 27)
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 168-9641
Référence fabricantMC68HC705C8ACFNE
MarqueNXP
12,183 €
Each (In a Tube of 26)
Unité
M68HC05 PLCC Surface Mount 44 HC05 8bit 8 kB 2.1MHz 304 B - - - 1 3 → 5.5 V
N° de stock RS 165-4702
Référence fabricantPIC16C745-I/SP
MarqueMicrochip
3,59 €
Each (In a Tube of 15)
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 724-9978
Référence fabricantSTM8S207R6T6
2,52 €
Each
Unité
STM8S LQFP Surface Mount 64 STM8 8bit 1.024 kB, 32 kB 24MHz 6 kB - 1 16 1 2.95 → 5.5 V
N° de stock RS 144-9160
Référence fabricantPIC18F1220-I/P
MarqueMicrochip
2,565 €
Each (In a Tube of 25)
Unité
PIC18F PDIP Through Hole 18 PIC 8bit 4 kB, 256 B 40MHz 256 B - 1 7 - 4.2 → 5.5 V
N° de stock RS 467-1628
Référence fabricantPIC16F876A-I/SP
MarqueMicrochip
4,60 €
Each
Unité
PIC16F SPDIP Through Hole 28 PIC 8bit 14.3 kB, 256 B 20MHz 368 B - 2 5 1 4 → 5.5 V