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 Stock No. 181-4968
Mfr. Part No.FT906L-C-T
BrandBridgetek
HK$53.435
Each (In a Pack of 2)
units
FT90 LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V
RS Stock No. 176-9101
Mfr. Part No.FT930Q-T
BrandBridgetek
HK$34.371
Each (In a Tray of 348)
units
FT93 QFN Surface Mount 68 FT32B 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 176-9102
Mfr. Part No.FT931Q-T
BrandBridgetek
HK$36.808
Each (In a Tray of 348)
units
FT93 QFN Surface Mount 56 FT32B 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 180-6976
Mfr. Part No.BT815Q-T
BrandBridgetek
HK$58.42
Each
units
- VQFN Surface Mount 64 - - - - - - - - 4 3.3 V
RS Stock No. 181-4997
Mfr. Part No.FT903Q-C-T
BrandBridgetek
HK$55.70
Each (In a Pack of 2)
units
FT90 QFN Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 181-4970
Mfr. Part No.FT900L-C-T
BrandBridgetek
HK$62.82
Each (In a Pack of 2)
units
FT90 LQFP Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 181-4979
Mfr. Part No.FT907L-C-T
BrandBridgetek
HK$54.71
Each (In a Pack of 2)
units
FT90 LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V
RS Stock No. 176-9103
Mfr. Part No.FT932Q-T
BrandBridgetek
HK$35.763
Each (In a Tray of 260)
units
FT93 QFN Surface Mount 48 FT32B 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 901-5017
Mfr. Part No.FT901Q-T
BrandBridgetek
HK$53.38
Each
units
Embedded Microcontroller QFN Surface Mount 100 FT32 32bit 256 kB 100MHz 64 kB, 256 kB 1 x Host, 1 x Peripheral Controller 1 7 - 3.3 V
RS Stock No. 181-4795
Mfr. Part No.FT906Q-C-T
BrandBridgetek
HK$44.81
Each (In a Tray of 260)
units
FT90 QFN Surface Mount 76 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V
RS Stock No. 181-4987
Mfr. Part No.FT902Q-C-T
BrandBridgetek
HK$61.29
Each (In a Pack of 2)
units
FT90 QFN Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 176-9106
Mfr. Part No.FT930Q-T
BrandBridgetek
HK$39.30
Each (In a Pack of 2)
units
FT93 QFN Surface Mount 68 FT32B 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 181-4990
Mfr. Part No.FT908L-C-T
BrandBridgetek
HK$50.13
Each (In a Pack of 2)
units
FT90 LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V
RS Stock No. 181-4788
Mfr. Part No.FT902Q-C-T
BrandBridgetek
HK$51.041
Each (In a Tray of 152)
units
FT90 QFN Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 176-9112
Mfr. Part No.FT933Q-T
BrandBridgetek
HK$37.39
Each (In a Pack of 2)
units
FT93 QFN Surface Mount 48 FT32B 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 901-5008
Mfr. Part No.FT901L-T
BrandBridgetek
HK$53.38
Each
units
Embedded Microcontroller LQFP Surface Mount 100 FT32 32bit 256 kB 100MHz 64 kB, 256 kB 1 x Host, 1 x Peripheral Controller 1 7 - 3.3 V
RS Stock No. 181-4977
Mfr. Part No.FT901L-C-T
BrandBridgetek
HK$57.47
Each (In a Pack of 2)
units
FT90 LQFP Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 181-4785
Mfr. Part No.FT901Q-C-T
BrandBridgetek
HK$48.704
Each (In a Tray of 152)
units
FT90 QFN Surface Mount 100 FT32 32bit 256 kB 100MHz 256 kB 1 1 8 3 3.3 V
RS Stock No. 181-4796
Mfr. Part No.FT907L-C-T
BrandBridgetek
HK$45.56
Each (In a Tray of 160)
units
FT90 LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V
RS Stock No. 181-4794
Mfr. Part No.FT906L-C-T
BrandBridgetek
HK$44.49
Each (In a Tray of 160)
units
FT90 LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 256 kB 1 1 5 2 3.3 V