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. 177-5922
Mfr. Part No.FT900Q-T
BrandBridgetek
SGD21.638
Each (In a Tray of 152)
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. 901-5004
Mfr. Part No.FT900Q-T
BrandBridgetek
SGD9.96
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. 181-4798
Mfr. Part No.FT908L-C-T
BrandBridgetek
SGD8.167
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. 177-5923
Mfr. Part No.FT902Q-T
BrandBridgetek
SGD9.67
Each (In a Tray of 152)
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. 176-9110
Mfr. Part No.FT932Q-T
BrandBridgetek
SGD6.60
Each (In a Pack of 2)
units
FT93 QFN Surface Mount 48 - 32bit 128 kB 100MHz 32 kB 1 1 3 1 3.3 V
RS Stock No. 177-5925
Mfr. Part No.FT905L-T
BrandBridgetek
SGD9.06
Each (In a Tray of 160)
units
Embedded Microcontroller LQFP Surface Mount 80 FT32 32bit 256 kB 100MHz 64 kB, 256 kB 1 x Host, 1 x Peripheral Controller 1 4 - 3.3 V
RS Stock No. 181-4997
Mfr. Part No.FT903Q-C-T
BrandBridgetek
SGD10.59
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. 181-4979
Mfr. Part No.FT907L-C-T
BrandBridgetek
SGD10.375
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. 181-4799
Mfr. Part No.FT908Q-C-T
BrandBridgetek
SGD8.01
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. 181-4785
Mfr. Part No.FT901Q-C-T
BrandBridgetek
SGD9.433
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. 181-4992
Mfr. Part No.FT903L-C-T
BrandBridgetek
SGD10.59
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. 901-5014
Mfr. Part No.FT902Q-T
BrandBridgetek
SGD8.60
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. 901-5039
Mfr. Part No.FT905Q-T
BrandBridgetek
SGD7.99
Each
units
Embedded Microcontroller QFN Surface Mount 76 FT32 32bit 256 kB 100MHz 64 kB, 256 kB 1 x Host, 1 x Peripheral Controller 1 4 - 3.3 V
RS Stock No. 901-5008
Mfr. Part No.FT901L-T
BrandBridgetek
SGD9.11
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. 181-4970
Mfr. Part No.FT900L-C-T
BrandBridgetek
SGD11.92
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. 917-0707
Mfr. Part No.FT51AL-T
BrandBridgetek
SGD7.10
Each (In a Pack of 2)
units
FT51A LQFP Surface Mount 44 8051 8bit 16 kB 48MHz 8 kB 2 - - - 1.8 V, 2.5 V, 3.3 V, 5 V
RS Stock No. 177-5924
Mfr. Part No.FT901Q-T
BrandBridgetek
SGD9.22
Each (In a Tray of 152)
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. 181-4790
Mfr. Part No.FT903Q-C-T
BrandBridgetek
SGD9.218
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. 181-4981
Mfr. Part No.FT901Q-C-T
BrandBridgetek
SGD11.085
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. 181-4796
Mfr. Part No.FT907L-C-T
BrandBridgetek
SGD8.829
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