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 819-5301
製造零件編號DSPIC30F3010-30I/SP
BrandMicrochip
TWD149.40
毎管:15 個
單位
DsPIC30F SPDIP Through Hole 28 PIC 16bit 24 kB 25MHz 1.024 kB - 2 6 1 2.5 to 5.5 V
RS庫存編號 793-1392
製造零件編號STM8S003F3P6
TWD19.80
/個 (每包:10個)
單位
STM8S TSSOP Surface Mount 20 STM8 8bit 8 kB 16MHz 1 kB - 1 5 1 6.5 V
RS庫存編號 110-6133
製造零件編號STM32F070CBT6
TWD76.40
/個 (每包:5個)
單位
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 128 kB 48MHz 16 kB 1 - 13 - 2.4 → 3.6 V
RS庫存編號 920-6402
製造零件編號STM32F107VBT6
TWD198.60
Each (In a Tray of 90)
單位
STM32F LQFP Surface Mount 100 ARM Cortex M3 32bit 128 kB 72MHz 64 kB 1 x OTG 1 16 3 2 → 3.6 V
RS庫存編號 145-8756
製造零件編號STM32F070CBT6
TWD53.60
Each (In a Tray of 250)
單位
STM32 LQFP Surface Mount 48 ARM Cortex M0 32bit 128 kB 48MHz 16 kB 1 - 13 - 2.4 → 3.6 V
RS庫存編號 102-3542
製造零件編號STM32F103RBT6
TWD143.00
Each (In a Tray of 160)
單位
STM32F LQFP Surface Mount 64 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 x Device 1 16 2 2 → 3.6 V
RS庫存編號 168-7137
製造零件編號STM8S003F3P6
TWD19.80
毎管:74 個
單位
STM8S TSSOP Surface Mount 20 STM8 8bit 8 kB 16MHz 1 kB - 1 5 1 6.5 V
RS庫存編號 159-7457
製造零件編號PIC16F1704-I/P
BrandMicrochip
TWD32.60
毎管:30 個
單位
PIC16F PDIP Through Hole 14 PIC 8bit 4096 words 32MHz 512 B 1 1 8 1 2.3 → 5.5 V
RS庫存編號 402-251
製造零件編號STM32F103RBT6
TWD194.00
單位
STM32F LQFP Surface Mount 64 ARM Cortex M3 32bit 128 kB 72MHz 20 kB 1 x Device 1 16 2 2 → 3.6 V
RS庫存編號 810-3942
製造零件編號PIC16F1704-I/P
BrandMicrochip
TWD34.40
/個 (每包:5個)
單位
PIC16F PDIP Through Hole 14 PIC 8bit 4096 words 32MHz 512 B 1 1 8 1 2.3 → 5.5 V
RS庫存編號 724-9729
製造零件編號STM32F107VBT6
TWD223.00
單位
STM32F LQFP Surface Mount 100 ARM Cortex M3 32bit 128 kB 72MHz 64 kB 1 x OTG 1 16 3 2 → 3.6 V
RS庫存編號 916-3734
製造零件編號PIC16F18313-I/P
BrandMicrochip
TWD26.70
/個 (每包:10個)
單位
PIC16F PDIP Through Hole 8 PIC 8bit 3.5 kB 32MHz 256 B - 1 5 - 2.3 → 5.5 V
RS庫存編號 786-4003
製造零件編號PIC16F1455-I/SL
BrandMicrochip
TWD47.60
/個 (每包:5個)
單位
PIC16F SOIC Surface Mount 14 PIC 8bit 14 kB 48MHz 1.024 kB 1 1 5 1 2.3 → 5.5 V
RS庫存編號 165-4174
製造零件編號PIC16F18313-I/P
BrandMicrochip
TWD24.50
毎管:60 個
單位
PIC16F PDIP Through Hole 8 PIC 8bit 3.5 kB 32MHz 256 B - 1 5 - 2.3 → 5.5 V
RS庫存編號 165-6735
製造零件編號STM32F302CBT6
TWD121.40
Each (In a Tray of 250)
單位
STM32F LQFP Surface Mount 48 ARM Cortex M4 32bit 128 kB 72MHz 32 kB 1 1 8 3 2 → 3.6 V
RS庫存編號 823-4472
製造零件編號PIC16F1503-E/ST
BrandMicrochip
TWD29.30
/個 (每包:10個)
單位
PIC16F TSSOP Surface Mount 14 PIC 8bit 3.5 kB 20MHz 128 B 1 4 8 1 2.3 → 5.5 V
RS庫存編號 402-279
製造零件編號STM32F103C8T6
TWD158.00
單位
STM32F LQFP Surface Mount 48 ARM Cortex M3 32bit 64 kB 72MHz 20 kB 1 x Device 1 10 2 2 → 3.6 V
RS庫存編號 169-8225
製造零件編號Z84C0008PEG
BrandZilog
TWD144.90
毎管:10 個
單位
Z80 PDIP Through Hole 40 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-8996
製造零件編號Z84C3008PEG
BrandZilog
TWD187.00
單位
Z80 PDIP Through Hole 28 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-8918
製造零件編號Z84C0008PEG
BrandZilog
TWD167.00
單位
Z80 PDIP Through Hole 40 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V