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 791-8144
製造零件編號LPC11U35FHI33/501,
BrandNXP
TWD161.00
/個 (每包:2個)
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 124-1556
製造零件編號PIC16F18346-I/P
BrandMicrochip
TWD52.20
/個 (每包:5個)
單位
PIC16 PDIP Surface Mount 20 PIC 8bit 28 kB 32MHz 2 kB - - 17 - 2.3 → 5.5 V
RS庫存編號 168-9808
製造零件編號C8051F005-GQ
TWD422.00
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 715-4606
製造零件編號PIC18F25K80-I/SS
BrandMicrochip
TWD93.00
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 840-6576
製造零件編號MKE04Z8VFK4
BrandNXP
TWD51.00
/個 (每包:10個)
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 145-8996
製造零件編號PIC16F1507-I/SS
BrandMicrochip
TWD30.40
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 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 725-7727
製造零件編號LPC1754FBD80,551
BrandNXP
TWD288.00
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 792-6035
製造零件編號STM32F429IIT6
TWD522.00
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 110-7088
製造零件編號STM32L051K8T6
TWD107.00
/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 724-9640
製造零件編號STM32F103VDT6
TWD262.00
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 168-7337
製造零件編號STM32F103C6T7A
TWD144.90
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 743-2659
製造零件編號PIC16F1507-I/SS
BrandMicrochip
TWD32.80
/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 911-5805
製造零件編號PIC16F1823-I/ST
BrandMicrochip
TWD38.40
毎管:96 個
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 103-8048
製造零件編號LPC1754FBD80,551
BrandNXP
TWD215.40
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 887-7123
製造零件編號PIC32MX795F512L-80I/PT
BrandMicrochip
TWD272.70
Each (In a Tray of 119)
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 725-7733
製造零件編號LPC1768FBD100,551
BrandNXP
TWD392.00
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 103-8049
製造零件編號LPC1768FBD100,551
BrandNXP
TWD338.30
毎管:90 個
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 818-2579
製造零件編號PIC18F25K80T-I/SS
BrandMicrochip
TWD77.50
個 (在毎卷:2100)
單位
PIC18F SSOP Surface Mount 28 PIC18F 8bit 32 kB 64MHz 3.648 kB - 4 8 1 1.8 → 5.5 V
RS庫存編號 575-046
製造零件編號PIC24FJ256GB106-I/PT
BrandMicrochip
TWD190.00
單位
PIC24FJ TQFP Surface Mount 64 PIC 16bit 256 kB 32MHz 16 kB 1 x OTG 9 16 3 2 → 3.6 V