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庫存編號 919-6270
製造零件編號STM32F030R8T6
TWD45.0000
Each (In a Tray of 160)
單位
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 8 kB - 1 18 2 3.6 V
RS庫存編號 829-7151
製造零件編號STM32F030F4P6TR
TWD41.3000
/個 (每包:10個)
單位
STM32F TSSOP Surface Mount 20 ARM Cortex M0 32bit 16 kB 48MHz 4 kB - - 11 1 2.4 → 3.6 V
RS庫存編號 165-5412
製造零件編號STM32F746VGT6
TWD331.6000
Each (In a Tray of 540)
單位
STM32F LQFP Surface Mount 100 ARM Cortex M7 32bit 1.024 MB 216MHz 340 kB 2 2 16 - 1.7 → 3.6 V
RS庫存編號 170-8959
製造零件編號MKE04Z8VWJ4
BrandNXP
TWD36.5000
毎管:38 個
單位
Kinetis E SOIC Surface Mount 20 ARM Cortex M0+ 32bit 8 kB 48MHz 1 kB - 2 12 1 2.7 → 5.5 V
RS庫存編號 792-5934
製造零件編號STM32F030R8T6
TWD58.0000
/個 (每包:5個)
單位
STM32F LQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 8 kB - 1 18 2 3.6 V
RS庫存編號 889-5477
製造零件編號PIC18F45K80-I/PT
BrandMicrochip
TWD84.7000
Each (In a Tray of 160)
單位
PIC18F TQFP Surface Mount 44 PIC 8bit 32 kB 64MHz 1.024 kB, 3.648 kB - 2 11 1 3.3 V
RS庫存編號 725-7727
製造零件編號LPC1754FBD80,551
BrandNXP
TWD249.0000
單位
LPC17 LQFP Surface Mount 80 ARM Cortex M3 32bit 128 kB 100MHz 32 kB 1 x Device, 1 x Host, 1 x OTG 2 6 3 3.3 V
RS庫存編號 725-7733
製造零件編號LPC1768FBD100,551
BrandNXP
TWD359.0000
單位
LPC17 LQFP Surface Mount 100 ARM Cortex M3 32bit 512 kB 100MHz 64 kB 1 x Device, 1 x Host, 1 x OTG 2 8 3 3.3 V
RS庫存編號 739-6945
製造零件編號UPD78F0455GB-GAH-AX
TWD102.0000
單位
UPD78 LQFP Surface Mount 64 78K0 8bit 60 kB 10MHz 3 kB - 2 8 1 1.8 → 5.5 V
RS庫存編號 165-3572
製造零件編號PIC16F1527-I/PT
BrandMicrochip
TWD60.4000
Each (In a Tray of 160)
單位
- - - - - - - - 1.536 kB - - - - -
RS庫存編號 743-2659
製造零件編號PIC16F1507-I/SS
BrandMicrochip
TWD32.5000
/個 (每包:4個)
單位
PIC16F SSOP Surface Mount 20 PIC 8bit 3.5 kB 20MHz 128 B - 1 12 - 2.3 → 5.5 V
RS庫存編號 400-867
製造零件編號PIC18F6722-I/PT
BrandMicrochip
TWD287.0000
單位
PIC18F TQFP Surface Mount 64 PIC 8bit 1.024 kB, 128 kB 40MHz 3.936 kB - 5 12 2 4.2 → 5.5 V
RS庫存編號 110-7088
製造零件編號STM32L051K8T6
TWD97.0000
/個 (每包:2個)
單位
STM32 LQFP Surface Mount 32 ARM Cortex M0+ 32bit 64 kB 32MHz 8 kB - - 10 - 1.65 → 3.6 V
RS庫存編號 703-7810
製造零件編號PIC16F1823-I/ST
BrandMicrochip
TWD41.0000
單位
PIC16F TSSOP Surface Mount 14 PIC 8bit 2K x 14 words, 256 B 32MHz 128 B - 1 8 1 1.8 → 5.5 V
RS庫存編號 698-7013
製造零件編號TMS320F28035PNT
TWD282.0000
單位
Piccolo LQFP Surface Mount 80 C28x 32bit 128 kB 60MHz 20 kB - 1 16 2 2.97 → 3.63 V
RS庫存編號 715-4606
製造零件編號PIC18F25K80-I/SS
BrandMicrochip
TWD93.0000
單位
PIC18F SSOP Surface Mount 28 PIC 8bit 32 kB 64MHz 1.024 kB, 3.648 kB - 2 8 1 3.3 V
RS庫存編號 723-8980
製造零件編號STM32F103C6T7A
TWD108.0000
單位
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 32 kB 72MHz 10 kB 1 x Device 1 10 1 2 → 3.6 V
RS庫存編號 623-0819
製造零件編號PIC18F4520-I/P
BrandMicrochip
TWD143.0000
單位
PIC18F PDIP Through Hole 40 PIC 8bit 32 kB, 256 B 40MHz 1.536 kB - 2 13 1 4.2 to 5.5 V
RS庫存編號 663-4056
製造零件編號M30260F8BGP
TWD251.0000
單位
R8C LQFP Surface Mount 48 M16C/26A 16bit 64 kB 24MHz 2 kB - 1 12 - 4.2 → 5.5 V
RS庫存編號 146-3267
製造零件編號PIC32MM0064GPL028-I/SS
BrandMicrochip
TWD43.0000
毎管:47 個
單位
PIC32 SSOP Surface Mount 28 MicroAptiv UC 32 bit 32bit 64 kB 25MHz 8 kB - 1 12 2 2 → 3.6 V