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. 914-0084
Mfr. Part No.XMC1301T038F0032ABXUMA1
BrandInfineon
PHP66.872
Each (In a Pack of 5)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 32 kB 66.4MHz 16 kB 0 - 16 - 1.8 → 5.5 V
RS Stock No. 165-8088
Mfr. Part No.XMC1301T038F0032ABXUMA1
BrandInfineon
PHP72.611
Each (On a Reel of 3000)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 32 kB 66.4MHz 16 kB 0 - 16 - 1.8 → 5.5 V
RS Stock No. 914-0069
Mfr. Part No.XMC4500F100K1024ACXQSA1
BrandInfineon
PHP576.75
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 24 - 1.3 V, 3.3 V
RS Stock No. 165-8224
Mfr. Part No.XMC4500F100K1024ACXQSA1
BrandInfineon
PHP496.842
Each (In a Tray of 90)
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 24 - 1.3 V, 3.3 V
RS Stock No. 914-0087
Mfr. Part No.XMC1302T038X0064AAXUMA1
BrandInfineon
PHP90.952
Each (In a Pack of 5)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB 0 - 16 - 1.8 → 5.5 V
RS Stock No. 110-7493
Mfr. Part No.XMC4500E144X1024ACXQSA1
BrandInfineon
PHP580.33
Each
units
XMC4000 LFBGA Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 0 0 32 - 1.3 (Core) V, 3.3 (Digital) V
RS Stock No. 124-1095
Mfr. Part No.XMC1404F064X0200AAXUMA1
BrandInfineon
PHP574.38
Each
units
XMC1000 LQFP Surface Mount 64 Cortex-M0 32bit 200 kB 48MHz 16 kB 0 0 12 - 1.8 → 5.5 V
RS Stock No. 919-8834
Mfr. Part No.C515C8EMCAFXQMA1
BrandInfineon
PHP773.095
Each (In a Tray of 504)
units
C515C MQFP Surface Mount 80 8051 8bit 64 kB 10MHz 2.25 kB 0 4 8 1 4.25 → 5.5 V
RS Stock No. 165-8058
Mfr. Part No.XMC1100T016F0064ABXUMA1
BrandInfineon
PHP80.244
Each (On a Reel of 3000)
units
XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB 0 - 6 - 1.8 → 5.5 V
RS Stock No. 752-8423
Mfr. Part No.XE167F96F66LACFXUMA1
BrandInfineon
PHP575.83
Each
units
XE166 LQFP Surface Mount 144 C166S V2 16 bit, 32 bit 768 kB 66MHz 82 kB 0 3 24 6 3 to 5.5 V
RS Stock No. 914-0078
Mfr. Part No.XMC1100T016F0064ABXUMA1
BrandInfineon
PHP91.76
Each (In a Pack of 6)
units
XMC1000 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 66.4MHz 16 kB 0 - 6 - 1.8 → 5.5 V
RS Stock No. 752-8417
Mfr. Part No.C515C8EMCAFXQMA1
BrandInfineon
PHP953.73
Each
units
C515C MQFP Surface Mount 80 8051 8bit 64 kB 10MHz 2.25 kB 0 4 8 1 4.25 → 5.5 V
RS Stock No. 166-0791
Mfr. Part No.XMC4500E144X1024ACXQSA1
BrandInfineon
PHP623.751
Each (In a Tray of 240)
units
XMC4000 LFBGA Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 0 0 32 - 1.3 (Core) V, 3.3 (Digital) V
RS Stock No. 124-1099
Mfr. Part No.XMC4400F100K512BAXQMA1
BrandInfineon
PHP1,559.00
Each
units
XMC4000 LQFP Surface Mount 100 Cortex M4 32bit 512 kB 120MHz 80 kB 1 0 24 - 3.3 V
RS Stock No. 166-1074
Mfr. Part No.XE169FH200F100LABKXQSA1
BrandInfineon
PHP872.03
Each (In a Tray of 40)
units
XE166 LQFP Surface Mount 176 C166 16bit 1.6 MB 100MHz 112 kB 0 - 30 - 1.5 V
RS Stock No. 917-3413
Mfr. Part No.XMC4800F100K2048AAXQMA1
BrandInfineon
PHP1,202.25
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 144MHz 352 kB 1 - 8 - 1.3 V, 3.3 V
RS Stock No. 914-0062
Mfr. Part No.XMC4400F100K512ABXQSA1
BrandInfineon
PHP537.03
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 512 kB 120MHz 80 kB 1 - 24 - 1.3 V, 3.3 V
RS Stock No. 917-3407
Mfr. Part No.XMC4700F100K2048AAXQMA1
BrandInfineon
PHP742.27
Each
units
XMC4000 LQFP Surface Mount 100 ARM Cortex M4 32bit 2.048 MB 144MHz 352 kB 1 - 8 - 1.3 V, 3.3 V
RS Stock No. 165-8043
Mfr. Part No.XMC1100T016X0064ABXUMA1
BrandInfineon
PHP82.787
Each (On a Reel of 3000)
units
XMC1100 TSSOP Surface Mount 16 ARM Cortex M0 32bit 64 kB 32MHz 16 kB 0 0 6 - 1.8 → 5.5 V
RS Stock No. 178-1501
Mfr. Part No.XMC4500F144K1024ACXQMA1
BrandInfineon
PHP491.40
Each (In a Tray of 60)
units
XMC4000 LQFP Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB 1 - 8 - 1.3 V, 3.3 V