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 715-4191
製造零件編號PIC18F45K80-I/PT
BrandMicrochip
TWD112.00
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 165-5412
製造零件編號STM32F746VGT6
TWD280.50
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 165-3456
製造零件編號PIC16F1503-I/ST
BrandMicrochip
TWD29.80
毎管:96 個
單位
PIC16F TSSOP Surface Mount 14 PIC 8bit 2048 words 20MHz 128 B - 4 10 1 2.3 → 5.5 V
RS庫存編號 761-7517
製造零件編號PIC12F1501-I/P
BrandMicrochip
TWD28.80
/個 (每包:5個)
單位
PIC12F PDIP Through Hole 8 PIC 8bit 1024 words 20MHz 64 B - 4 4 - 2.3 to 5.5 V
RS庫存編號 889-5547
製造零件編號PIC16F1503-I/SL
BrandMicrochip
TWD27.40
毎管:57 個
單位
PIC16F SOIC Surface Mount 14 PIC 8bit 2048 words 20MHz 128 B - 4 10 1 2.3 → 5.5 V
RS庫存編號 755-9449
製造零件編號PIC16F1503-I/SL
BrandMicrochip
TWD30.30
/個 (每包:3個)
單位
PIC16F SOIC Surface Mount 14 PIC 8bit 2048 words 20MHz 128 B - 4 10 1 2.3 → 5.5 V
RS庫存編號 165-6667
製造零件編號STM32F103TBU6
TWD134.00
Each (In a Tray of 490)
單位
STM32F VFQFPN Surface Mount 36 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 1 10 1 3.6 V
RS庫存編號 829-7151
製造零件編號STM32F030F4P6TR
TWD48.30
/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 889-5477
製造零件編號PIC18F45K80-I/PT
BrandMicrochip
TWD92.60
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 889-5853
製造零件編號PIC12F509-I/P
BrandMicrochip
TWD25.80
毎管:60 個
單位
PIC12F PDIP Through Hole 8 PIC 8bit 1024 x 12 words 4MHz 41 B - - - - 2 to 5.5 V
RS庫存編號 795-6953
製造零件編號STM32F103TBU6
TWD192.00
單位
STM32F VFQFPN Surface Mount 36 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 1 10 1 3.6 V
RS庫存編號 912-2991
製造零件編號PIC12F1501-I/P
BrandMicrochip
TWD26.50
毎管:60 個
單位
PIC12F PDIP Through Hole 8 PIC 8bit 1024 words 20MHz 64 B - 4 4 - 2.3 to 5.5 V
RS庫存編號 102-3541
製造零件編號STM32F103CBT6
TWD134.60
Each (In a Tray of 250)
單位
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 x Device 1 10 2 2 → 3.6 V
RS庫存編號 919-6260
製造零件編號STM32F030F4P6
TWD46.70
毎管:74 個
單位
STM32F TSSOP Surface Mount 20 ARM Cortex M0 32bit 16 kB 48MHz 4 kB - 1 11 1 3.6 V
RS庫存編號 402-273
製造零件編號STM32F103CBT6
TWD193.00
單位
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 x Device 1 10 2 2 → 3.6 V
RS庫存編號 177-7182
製造零件編號STM32F746ZGT6
TWD388.00
Each (In a Tray of 60)
單位
STM32F LQFP Surface Mount 144 ARM Cortex M7 32bit 1.024 MB 216MHz 340 kB 2 2 24 - 1.7 → 3.6 V
RS庫存編號 623-0819
製造零件編號PIC18F4520-I/P
BrandMicrochip
TWD203.00
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 703-7810
製造零件編號PIC16F1823-I/ST
BrandMicrochip
TWD42.00
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 168-9903
製造零件編號C8051F340-GQ
TWD291.70
Each (In a Tray of 250)
單位
C8051F TQFP Surface Mount 48 8051 8bit 64 kB 48MHz 4.352 kB 2 2 17 1 2.7 → 5.25 V
RS庫存編號 757-4719
製造零件編號C8051F340-GQ
TWD320.00
單位
C8051F TQFP Surface Mount 48 8051 8bit 64 kB 48MHz 4.352 kB 2 2 17 1 2.7 → 5.25 V