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 663-4056
製造零件編號M30260F8BGP
TWD250.00
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 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 715-4606
製造零件編號PIC18F25K80-I/SS
BrandMicrochip
TWD105.00
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 623-0083
製造零件編號PIC12F508-I/P
BrandMicrochip
TWD28.00
單位
PIC12F PDIP Through Hole 8 PIC 8bit 512 x 12 words 4MHz 25 B - - - - 2 to 5.5 V
RS庫存編號 792-6035
製造零件編號STM32F429IIT6
TWD518.00
單位
STM32F LQFP Surface Mount 176 ARM Cortex M4 32bit 2.048 MB 180MHz 256 kB 2 2 24 6 3.6 V
RS庫存編號 171-1759
製造零件編號EFM8LB12F64E-B-QFP32
TWD58.30
Each (In a Tray of 250)
單位
EFM8LB1 QFP Surface Mount 32 CIP-51 8bit 64 kB 72MHz 4.352 kB - - 20 - 2.2 → 3.6 V
RS庫存編號 915-8763
製造零件編號EFM8LB12F64E-B-QFP32
TWD71.20
/個 (每包:5個)
單位
EFM8LB1 QFP Surface Mount 32 CIP-51 8bit 64 kB 72MHz 4.352 kB - - 20 - 2.2 → 3.6 V
RS庫存編號 739-6945
製造零件編號UPD78F0455GB-GAH-AX
TWD172.00
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 168-9808
製造零件編號C8051F005-GQ
TWD487.20
Each (In a Tray of 160)
單位
C8051F TQFP Surface Mount 64 8051 8bit 32 kB 25MHz 2.304 kB - 5 8 1 2.7 → 3.6 V
RS庫存編號 170-8955
製造零件編號MKE04Z8VFK4
BrandNXP
TWD43.80
Each (In a Tray of 490)
單位
Kinetis E QFN Surface Mount 24 ARM Cortex M0+ 32bit 8 kB 48MHz 1 kB - 2 12 1 2.7 → 5.5 V
RS庫存編號 168-7337
製造零件編號STM32F103C6T7A
TWD106.80
Each (In a Tray of 250)
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 687-9348
製造零件編號PIC32MX795F512L-80I/PT
BrandMicrochip
TWD377.00
單位
PIC32MX TQFP Surface Mount 100 PIC 32bit 12 kB, 512 kB 80MHz 128 kB 1 x Device 5 16 4 2.3 → 3.6 V
RS庫存編號 575-046
製造零件編號PIC24FJ256GB106-I/PT
BrandMicrochip
TWD217.00
單位
PIC24FJ TQFP Surface Mount 64 PIC 16bit 256 kB 32MHz 16 kB 1 x OTG 9 16 3 2 → 3.6 V
RS庫存編號 145-8996
製造零件編號PIC16F1507-I/SS
BrandMicrochip
TWD30.90
毎管:67 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 133-0149
製造零件編號CC1310F128RGZT
TWD236.00
單位
CC13xx VQFN Surface Mount 48 ARM Cortex M3 16bit 128 kB 48MHz 20 kB - - 8 - 1.8 → 3.8 V
RS庫存編號 526-8879
製造零件編號C8051F005-GQ
TWD502.00
單位
C8051F TQFP Surface Mount 64 8051 8bit 32 kB 25MHz 2.304 kB - 5 8 1 2.7 → 3.6 V
RS庫存編號 920-6468
製造零件編號STM32F407VGT6
TWD362.40
Each (In a Tray of 90)
單位
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
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 887-7268
製造零件編號PIC18F4520-I/P
BrandMicrochip
TWD187.90
毎管:10 個
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 123-9798
製造零件編號PIC24FJ256GB106-I/PT
BrandMicrochip
TWD168.90
Each (In a Tray of 160)
單位
PIC24FJ TQFP Surface Mount 64 PIC 16bit 256 kB 32MHz 16 kB 1 x OTG 9 16 3 2 → 3.6 V