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. 188-5365
Mfr. Part No.CY8C4013SXI-400
kr 8,59
Each (In a Tube of 97)
Units
PSoC 4000 SOIC Surface Mount 8 ARM Cortex M0 32bit 8 kB 16MHz 2 kB - - - - 1.8 → 5.5 V
RS Stock No. 124-2958
Mfr. Part No.CY8C4013SXI-400
kr 9,541
Each (In a Pack of 10)
Units
PSoC 4000 SOIC Surface Mount 8 ARM Cortex M0 32bit 8 kB 16MHz 2 kB - - - - 3.3 V
RS Stock No. 184-0711
Mfr. Part No.CY8C6336BZI-BLF03
kr 53,05
Each (In a Tray of 364)
Units
PSoC 6 BGA Surface Mount 116 ARM Cortex M4F 32bit 512 kB 150MHz 128 kB 1 - 16 9 3.6 (Maximum) V
RS Stock No. 177-1151
Mfr. Part No.CY8C5467AXI-LP108
kr 76,583
Each (In a Tray of 90)
Units
CY8C54LP TQFP Surface Mount 100 ARM Cortex M3 32bit 128 kB 80MHz 32 kB 1 1 1 2 1.8 → 5.5 V
RS Stock No. 177-1142
Mfr. Part No.CY8C4247LTI-M475
kr 39,387
Each (In a Tray of 260)
Units
CY8C4200 QFN Surface Mount 68 ARM Cortex M0 32bit 128 kB 48MHz 16 kB 1 1 1 4 1.8 → 5.5 V
RS Stock No. 194-9101
Mfr. Part No.CY8C21434-24LQXI
kr 37,279
Each (In a Tray of 490)
Units
CY8C21434 QFN Surface Mount 32 - 8bit 8 kB 24MHz 512 B 1 4 28 1 2.4 → 5.25 V
RS Stock No. 182-3166
Mfr. Part No.CY8C6247BZI-D54
kr 89,976
Each (In a Tray of 260)
Units
PSoC 6 BGA Surface Mount 124 ARM Cortex M4F 32bit 1.024 MB 50 MHz, 150 MHz 288 kB 1 - 16 9 3.6 (Maximum) V
RS Stock No. 181-8428
Mfr. Part No.CYW20736S
kr 123,93
Each
Units
- LGA Surface Mount 48 ARM Cortex M3 - - 24MHz 60 kB - 1 9 2 3.63 (Maximum) V
RS Stock No. 184-0713
Mfr. Part No.CY8C6316BZI-BLF53
kr 116,98
Each
Units
PSoC 6 BGA Surface Mount 116 ARM Cortex M4F 32bit 512 kB 150MHz 128 kB 1 - 16 9 3.6 (Maximum) V
RS Stock No. 177-1143
Mfr. Part No.CY8C4248AZI-L475
kr 64,005
Each (In a Tray of 160)
Units
CY8C4200 TQFP Surface Mount 64 ARM Cortex M0 32bit 256 kB 48MHz 32 kB 2 1 1 4 1.8 → 5.5 V
RS Stock No. 194-9107
Mfr. Part No.CY8C3245LTI-163
kr 39,113
Each (In a Tray of 260)
Units
CY8C3245LTI QFN Surface Mount 68 - 8bit 32 kB 50MHz 4 kB 1 1 1 1 1.71 → 5.5 V
RS Stock No. 194-9102
Mfr. Part No.CY8C21434-24LQXI
kr 61,205
Each (In a Pack of 2)
Units
CY8C21434 QFN Surface Mount 32 - 8bit 8 kB 24MHz 512 B 1 4 28 1 2.4 → 5.25 V
RS Stock No. 188-5364
Mfr. Part No.CY8C29566-24AXI
kr 75,567
Each (In a Tray of 160)
Units
CY8C29 TQFP Surface Mount 44 CPU 32bit 32 kB 24MHz 2 kB 1 - 1 1 3 → 5.25 V
RS Stock No. 176-8942
Mfr. Part No.CY8C4127AXI-S445
kr 43,819
Each (In a Tray of 90)
Units
CY8C4100 TQFP Surface Mount 64 ARM Cortex M0 32bit 128 kB 24MHz 16 kB - 1 2 5 1.8 → 5.5 V
RS Stock No. 179-7772
Mfr. Part No.CY8C6347BZI-BLD33
kr 128,28
Each
Units
PSoC BGA Surface Mount 116 ARM Cortex M4F 32bit 1.024 MB 150MHz 288 kB - - 1 1 3.6 (Maximum) V
RS Stock No. 181-3724
Mfr. Part No.CY8C4745LQI-S411
kr 41,111
Each (In a Tray of 490)
Units
PSoC 4700 QFN Surface Mount 24 ARM Cortex M0 32bit 32 kB 48MHz 4 kB - 1 1 1 1.71 → 5.5 V
RS Stock No. 177-1152
Mfr. Part No.CY8C5468AXI-LP106
kr 70,667
Each (In a Tray of 90)
Units
CY8C54LP TQFP Surface Mount 100 ARM Cortex M3 32bit 256 kB 80MHz 64 kB 1 1 1 2 1.8 → 5.5 V
RS Stock No. 181-3773
Mfr. Part No.CY8C4145AZI-PS433
kr 45,985
Each (In a Pack of 2)
Units
PSoC4100 TQFP Surface Mount 48 ARM Cortex M0 32bit 32 kB 48MHz 4 kB - 1 2 1 1.71 → 5.5 V
RS Stock No. 177-1234
Mfr. Part No.CY8C4127LQI-BL473
kr 48,76
Each (In a Pack of 2)
Units
CY8C4100 QFN Surface Mount 56 ARM Cortex M0 32bit 128 kB 24MHz 16 kB 1 1 1 2 1.8 → 5.5 V
RS Stock No. 177-1144
Mfr. Part No.CY8C4248AZI-L485
kr 65,033
Each (In a Tray of 160)
Units
CY8C4200 TQFP Surface Mount 64 ARM Cortex M0 32bit 256 kB 48MHz 32 kB 2 1 1 4 1.8 → 5.5 V