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 725-7727
製造零件編號LPC1754FBD80,551
BrandNXP
TWD295.00
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 575-046
製造零件編號PIC24FJ256GB106-I/PT
BrandMicrochip
TWD181.00
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 165-9774
製造零件編號LPC11U35FHI33/501,
BrandNXP
TWD112.40
Each (In a Tray of 490)
單位
LPC11U QFN Surface Mount 33 ARM Cortex M0 32bit 64 kB 50MHz 12 kB 1 - 8 2 3.3 V
RS庫存編號 876-7118
製造零件編號PIC18F6722-I/PT
BrandMicrochip
TWD321.00
Each (In a Tray of 160)
單位
PIC18F TQFP Surface Mount 64 PIC 8bit 128 kB, 1024 B 40MHz 3.936 kB - 5 12 2 4.2 → 5.5 V
RS庫存編號 103-8048
製造零件編號LPC1754FBD80,551
BrandNXP
TWD205.20
Each (In a Tray of 119)
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 919-6324
製造零件編號STM32F429IIT6
TWD426.90
Each (In a Tray of 40)
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 133-0149
製造零件編號CC1310F128RGZT
TWD220.00
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 819-5323
製造零件編號DSPIC30F3012-30I/P
BrandMicrochip
TWD122.10
毎管:25 個
單位
DsPIC30F PDIP Through Hole 18 PIC 16bit 24 kB 25MHz 2.048 kB - 2 8 1 2.5 → 5.5 V
RS庫存編號 792-6035
製造零件編號STM32F429IIT6
TWD484.00
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 168-7352
製造零件編號STM32F103VDT6
TWD221.20
Each (In a Tray of 90)
單位
STM32F LQFP Surface Mount 100 ARM Cortex M3 32bit 384 kB 72MHz 64 kB 1 x Device 2 16 3 2 → 3.6 V
RS庫存編號 889-5351
製造零件編號PIC12F508-I/P
BrandMicrochip
TWD20.60
毎管:60 個
單位
PIC12 PDIP Through Hole 8 PIC 8bit 512 x 12 words 4MHz 25 B - - - - 2 to 5.5 V
RS庫存編號 145-8996
製造零件編號PIC16F1507-I/SS
BrandMicrochip
TWD28.90
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 121-9240
製造零件編號TMS320F28035PNT
TWD252.10
Each (In a Tray of 119)
單位
Piccolo LQFP Surface Mount 80 C28x 32bit 128 kB 60MHz 20 kB - 1 16 2 2.97 to 3.63 V
RS庫存編號 746-8226
製造零件編號STM32F407VGT6
TWD357.00
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 146-3267
製造零件編號PIC32MM0064GPL028-I/SS
BrandMicrochip
TWD41.60
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
RS庫存編號 165-3572
製造零件編號PIC16F1527-I/PT
BrandMicrochip
TWD58.60
Each (In a Tray of 160)
單位
- - - - - - - - 1.536 kB - - - - -
RS庫存編號 741-4248
製造零件編號PIC16F1527-I/PT
BrandMicrochip
TWD85.00
/個 (每包:2個)
單位
PIC16F TQFP Surface Mount 64 PIC 8bit 28 kB 20MHz 1.536 kB - 1 30 2 2.3 → 5.5 V
RS庫存編號 168-9808
製造零件編號C8051F005-GQ
TWD376.80
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 168-4935
製造零件編號CC1310F128RGZT
TWD151.00
個 (在毎卷:250)
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 757-4719
製造零件編號C8051F340-GQ
TWD288.00
單位
C8051F TQFP Surface Mount 48 8051 8bit 64 kB 48MHz 4.352 kB 2 2 17 1 2.7 → 5.25 V