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

...
Read more Read less

Filters

Viewing 1 - 20 of 7688 products
Results per page
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. 775-2896
Mfr. Part No.STM32F101ZGT6
$17.55
Each
units
STM32F LQFP Surface Mount 144 ARM Cortex M3 32bit 1 MB 36MHz 80 kB 0 10 16 3 2 → 3.6 V
RS Stock No. 177-7178
Mfr. Part No.STM32F101ZGT6
$14.89
Each (In a Tray of 60)
units
STM32F LQFP Surface Mount 144 ARM Cortex M3 32bit 1 MB 36MHz 80 kB 0 10 16 3 2 → 3.6 V
RS Stock No. 704-7731
Mfr. Part No.PIC18F45K22-E/PT
BrandMicrochip
$4.83
Each
units
PIC18F TQFP Surface Mount 44 PIC 8bit 32.768 kB, 256 B 16MHz 1.536 kB 0 5 30 2 2.3 → 5.5 V
RS Stock No. 889-5988
Mfr. Part No.PIC18F45K22-E/PT
BrandMicrochip
$3.64
Each (In a Tray of 160)
units
PIC18F TQFP Surface Mount 44 PIC 8bit 32.768 kB, 256 B 16MHz 1.536 kB 0 5 30 2 2.3 → 5.5 V
RS Stock No. 165-4176
Mfr. Part No.PIC32MX170F256B-50I/SP
BrandMicrochip
$6.81
Each (In a Tube of 15)
units
PIC32MX SPDIP Through Hole 28 PIC 32bit 64 kB 50MHz 256 kB 0 5 10 2 2.3 → 3.6 V
RS Stock No. 841-7548
Mfr. Part No.PIC32MX170F256B-50I/SP
BrandMicrochip
$6.467
Each (In a Pack of 3)
units
PIC32MX SPDIP Through Hole 28 PIC 32bit 64 kB 50MHz 256 kB 0 5 10 2 2.3 to 3.6 V
RS Stock No. 755-9449
Mfr. Part No.PIC16F1503-I/SL
BrandMicrochip
$1.29
Each (In a Pack of 3)
units
PIC16F SOIC Surface Mount 14 PIC 8bit 2048 words 20MHz 128 B 0 4 10 1 2.3 → 5.5 V
RS Stock No. 889-5547
Mfr. Part No.PIC16F1503-I/SL
BrandMicrochip
$1.062
Each (In a Tube of 57)
units
PIC16F SOIC Surface Mount 14 PIC 8bit 2048 words 20MHz 128 B 0 4 10 1 2.3 → 5.5 V
RS Stock No. 786-3915
Mfr. Part No.PIC18F45K50-I/P
BrandMicrochip
$5.024
Each (In a Pack of 5)
units
PIC18F PDIP Through Hole 40 PIC 8bit 32 kB 48MHz 2.048 kB 1 2 25 1 2.3 to 5.5 V
RS Stock No. 145-9016
Mfr. Part No.PIC18F45K50-I/P
BrandMicrochip
$4.48
Each (In a Tube of 10)
units
PIC18F PDIP Through Hole 40 PIC 8bit 32 kB 48MHz 2.048 kB 1 2 25 1 2.3 → 5.5 V
RS Stock No. 145-8756
Mfr. Part No.STM32F070CBT6
$2.903
Each (In a Tray of 250)
units
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 128 kB 48MHz 16 kB 1 - 13 - 2.4 → 3.6 V
RS Stock No. 110-6133
Mfr. Part No.STM32F070CBT6
$4.01
Each (In a Pack of 5)
units
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 128 kB 48MHz 16 kB 1 - 13 - 2.4 → 3.6 V
RS Stock No. 919-6264
Mfr. Part No.STM32F030C6T6
$1.69
Each (In a Tray of 250)
units
STM32F LQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 4 kB 0 1 12 1 3.6 V
RS Stock No. 169-8229
Mfr. Part No.Z84C0010PEG
BrandZilog
$7.61
Each (In a Tube of 10)
units
Z80 PDIP Through Hole 40 Z80 8bit - 10MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 625-9078
Mfr. Part No.Z84C0010PEG
BrandZilog
$8.60
Each
units
Z80 PDIP Through Hole 40 Z80 8bit - 10MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 792-5928
Mfr. Part No.STM32F030C6T6
$2.06
Each (In a Pack of 5)
units
STM32F LQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 4 kB 0 1 12 1 3.6 V
RS Stock No. 168-6893
Mfr. Part No.STM32F101C6T6A
$4.26
Each (In a Tray of 250)
units
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 32 kB 36MHz 6 kB 0 2 10 1 2 → 3.6 V
RS Stock No. 792-5934
Mfr. Part No.STM32F030R8T6
$3.188
Each (In a Pack of 5)
units
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 8 kB 0 1 18 2 3.6 V
RS Stock No. 714-7676
Mfr. Part No.STM32F101C6T6A
$6.07
Each
units
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 32 kB 36MHz 6 kB 0 2 10 1 2 → 3.6 V
RS Stock No. 919-6270
Mfr. Part No.STM32F030R8T6
$2.26
Each (In a Tray of 160)
units
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 8 kB 0 1 18 2 3.6 V
Related Products
PSoC 4 (ARM Cortex-M0 Core), Cypress The Cypress ...
Description:
PSoC 4 (ARM Cortex-M0 Core), Cypress The Cypress Semiconductor PSoC 4 (Programmable Embedded System-on-Chip) family contain an ARM Cortex-M0 processor both product families 4100 and the 4200 platform architecture feature a combination of a microcontroller with op amps with Comparator ...
8-Bit megaAVR Microcontrollers, 4KB to 16KB Flash Here ...
Description:
8-Bit megaAVR Microcontrollers, 4KB to 16KB Flash Here at RS Components we have numerous megaAVR 8-bit microcontrollers from AtmelEach microcontroller is based on an enhanced RISC architecture and features QTouch library support. All of the megaAVR microcontrollers have varying Kb ...
8-Bit megaAVR Microcontrollers with CAN Controller These megaAVR® ...
Description:
8-Bit megaAVR Microcontrollers with CAN Controller These megaAVR® microcontrollers feature Controller Area Network (CAN) 20A/B controller and are ISO 16845 certified.They also offer substantial program and data memories with performance up to 20 MIPS. All megaAVR offer self-programmability for fast, ...
8-Bit megaAVR Microcontrollers, 32KB to 256KB Flash Here ...
Description:
8-Bit megaAVR Microcontrollers, 32KB to 256KB Flash Here at RS Components we have various megaAVR 8-bit microcontrollers from Atmel Each of the microcontrollers is based on an enhanced RISC architecture and feature QTouch library support. All the microcontroller types have ...