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
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 171-1759
製造零件編號EFM8LB12F64E-B-QFP32
TWD54.50
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 791-8144
製造零件編號LPC11U35FHI33/501,
BrandNXP
TWD157.50
/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 889-5266
製造零件編號PIC18F25K80-I/SS
BrandMicrochip
TWD83.80
毎管:47 個
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 919-6324
製造零件編號STM32F429IIT6
TWD473.90
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 920-6468
製造零件編號STM32F407VGT6
TWD358.20
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 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 915-8763
製造零件編號EFM8LB12F64E-B-QFP32
TWD67.80
/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 168-7337
製造零件編號STM32F103C6T7A
TWD110.00
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 146-3267
製造零件編號PIC32MM0064GPL028-I/SS
BrandMicrochip
TWD43.60
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 709-2946
製造零件編號MSP430F1122IPW
TWD152.00
單位
MSP430 TSSOP Surface Mount 20 MSP430 16bit 4 kB, 256 B 8MHz 256 B - 1 5 1 1.8 → 3.6 V
RS庫存編號 165-9774
製造零件編號LPC11U35FHI33/501,
BrandNXP
TWD109.60
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 746-8226
製造零件編號STM32F407VGT6
TWD430.00
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 723-8980
製造零件編號STM32F103C6T7A
TWD157.00
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 698-7013
製造零件編號TMS320F28035PNT
TWD366.00
單位
Piccolo LQFP Surface Mount 80 C28x 32bit 128 kB 60MHz 20 kB - 1 16 2 2.97 → 3.63 V
RS庫存編號 703-7810
製造零件編號PIC16F1823-I/ST
BrandMicrochip
TWD41.00
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 623-0083
製造零件編號PIC12F508-I/P
BrandMicrochip
TWD25.00
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 165-3572
製造零件編號PIC16F1527-I/PT
BrandMicrochip
TWD61.50
Each (In a Tray of 160)
單位
- - - - - - - - 1.536 kB - - - - -
RS庫存編號 124-1556
製造零件編號PIC16F18346-I/P
BrandMicrochip
TWD52.00
/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