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 882-0290
Référence fabricantSTM32F746ZGT6
12,74 €
Each
Unité
STM32F LQFP Surface Mount 144 ARM Cortex M7 32bit 1.024 MB 216MHz 340 kB 2 2 24 - 1.7 → 3.6 V
N° de stock RS 177-7182
Référence fabricantSTM32F746ZGT6
9,106 €
Each (In a Tray of 60)
Unité
STM32F LQFP Surface Mount 144 ARM Cortex M7 32bit 1.024 MB 216MHz 340 kB 2 2 24 - 1.7 → 3.6 V
N° de stock RS 757-4839
Référence fabricantC8051F580-IQ
MarqueSilicon Labs
7,80 €
Each
Unité
C8051F QFP Surface Mount 48 8051 8bit 128 kB 24MHz 8.448 kB 0 4 32 1 1.8 → 5.25 V
N° de stock RS 168-9916
Référence fabricantC8051F580-IQ
MarqueSilicon Labs
6,371 €
Each (In a Tray of 250)
Unité
C8051F QFP Surface Mount 48 8051 8bit 128 kB 24MHz 8.448 kB 0 4 32 1 1.8 → 5.25 V
N° de stock RS 887-7120
Référence fabricantPIC18F4550-I/PT
MarqueMicrochip
5,007 €
Each (In a Tray of 160)
Unité
PIC18F TQFP Surface Mount 44 PIC 8bit 32 kB, 256 B 48MHz 2.048 kB 1 x Device 2 13 1 4.2 → 5.5 V
N° de stock RS 623-0825
Référence fabricantPIC18F4550-I/PT
MarqueMicrochip
5,32 €
Each
Unité
PIC18F TQFP Surface Mount 44 PIC 8bit 32 kB, 256 B 48MHz 2.048 kB 1 x Device 2 13 1 4.2 → 5.5 V
N° de stock RS 723-8873
Référence fabricantSTM32F100C8T6B
2,91 €
Each
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB 0 7 10 2 2 → 3.6 V
N° de stock RS 121-4233
Référence fabricantPIC16F628A-I/P
MarqueMicrochip
2,132 €
Each (In a Pack of 5)
Unité
PIC16F628A PDIP Through Hole 18 PIC 8bit 3.5 kB 20MHz 224 B 0 0 - - 3 → 5.5 V
N° de stock RS 168-7326
Référence fabricantSTM32F100C8T6B
1,859 €
Each (In a Tray of 250)
Unité
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 24MHz 8 kB 0 7 10 2 2 → 3.6 V
N° de stock RS 177-7131
Référence fabricantSTM32F407IET6
8,435 €
Each (In a Tray of 40)
Unité
- - - - - - - - - - - - - -
N° de stock RS 795-7607
Référence fabricantSTM32F407IET6
9,80 €
Each
Unité
STM32F LQFP Surface Mount 176 ARM Cortex M4 32bit 512 kB 168MHz 192 + 4 kB 2 1 24 3 3.6 V
N° de stock RS 889-5834
Référence fabricantPIC18F45K22-I/P
MarqueMicrochip
2,538 €
Each (In a Tube of 10)
Unité
PIC18F PDIP Through Hole 40 PIC 8bit 32.768 kB, 256 B 16MHz 1.536 kB 0 5 30 2 2.3 to 5.5 V
N° de stock RS 920-6474
Référence fabricantSTM32F417VGT6
8,412 €
Each (In a Tray of 90)
Unité
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
N° de stock RS 467-1511
Référence fabricantPIC16F873A-I/SO
MarqueMicrochip
4,19 €
Each
Unité
PIC16F SOIC Surface Mount 28 PIC 8bit 7.2 kB, 128 B 20MHz 192 B 0 2 5 1 4 → 5.5 V
N° de stock RS 623-0487
Référence fabricantPIC16F88-I/P
MarqueMicrochip
3,20 €
Each
Unité
PIC16F PDIP Through Hole 18 PIC 8bit 7.168 kB, 256 B 20MHz 368 B 0 1 7 1 4 → 5.5 V
N° de stock RS 110-6612
Référence fabricantSTM32F042C6T6
2,592 €
Each (In a Pack of 5)
Unité
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 6 kB 1 - 13 - 2 → 3.6 V
N° de stock RS 746-3433
Référence fabricantSTM32F417VGT6
1,00 €
Each
Unité
- - - - - - - - - - - - - -
N° de stock RS 166-1087
Référence fabricantSTM32F042C6T6
1,762 €
Each (In a Tray of 250)
Unité
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 6 kB 1 - 13 - 2 → 3.6 V
N° de stock RS 168-7115
Référence fabricantSTM32F417VGT6TR
7,157 €
Each (On a Reel of 1000)
Unité
STM32F LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 168MHz 192 kB 2 2 16 3 3.6 V
N° de stock RS 165-4720
Référence fabricantPIC16F873A-I/SO
MarqueMicrochip
4,02 €
Each (In a Tube of 27)
Unité
PIC16F SOIC Surface Mount 28 PIC 8bit 7.2 kB, 128 B 20MHz 192 B 0 2 5 1 4 → 5.5 V