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. 110-7760
Mfr. Part No.XC164CS16F40FBBFXQMA1
BrandInfineon
MYR82.40
Each
units
XC166 TQFP Surface Mount 100 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 14 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS Stock No. 166-0890
Mfr. Part No.XC164CS16F40FBBFXQMA1
BrandInfineon
MYR76.124
Each (In a Tray of 540)
units
XC166 TQFP Surface Mount 100 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 14 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS Stock No. 166-0857
Mfr. Part No.XC8664FRIBEFXUMA1
BrandInfineon
MYR9.278
Each (On a Reel of 1000)
units
XC866 TSSOP Surface Mount 38 8051 8bit 4 kB, 12 kB 26.7MHz 256 B, 512 B - 1 8 - 4.5 → 5.5 V
RS Stock No. 629-5046
Mfr. Part No.XC8664FRIBEFXUMA1
BrandInfineon
MYR12.77
Each
units
XC866 TSSOP Surface Mount 38 8051 8bit 4 Kb, 12 Kb 26.7MHz 256 B, 512 B - 1 8 - 4.5 → 5.5 V
New
RS Stock No. 218-4421
Mfr. Part No.XMC1202T028X0064ABXUMA1
BrandInfineon
MYR7.594
Each (In a Pack of 5)
units
XMC1202 TSSOP Through Hole 28 ARM Cortex M0 32bit 64 kB 32MHz - - - - - -
New
RS Stock No. 218-4424
Mfr. Part No.XMC1402F064X0200AAXUMA1
BrandInfineon
MYR11.551
Each (On a Reel of 1900)
units
XMC1400 LQFP Surface Mount 64 ARM Cortex M0 32bit 200 kB 48MHz - - - - - -
New
RS Stock No. 218-4410
Mfr. Part No.TC297TP128F300NBCKXUMA1
BrandInfineon
MYR187.62
Each
units
TC29xT LFBGA Surface Mount 292 TriCore 32bit 8 MB 300MHz - - - - - -
New
RS Stock No. 218-4426
Mfr. Part No.XMC1402F064X0200AAXUMA1
BrandInfineon
MYR14.852
Each (In a Pack of 5)
units
XMC1400 LQFP Surface Mount 64 ARM Cortex M0 32bit 200 kB 48MHz - - - - - -
RS Stock No. 857-7157
Mfr. Part No.XC8662FRIBEFXUMA1
BrandInfineon
MYR6.158
Each (On a Reel of 1000)
units
XC800 TSSOP Surface Mount 38 XC800 8bit 4 kB 26.67MHz 256 B, 512 B - 1 8 1 3.3 → 5 V
RS Stock No. 110-7493
Mfr. Part No.XMC4500E144X1024ACXQSA1
BrandInfineon
MYR46.38
Each
units
XMC4000 LFBGA Surface Mount 144 ARM Cortex M4 32bit 1.024 MB 120MHz 160 kB - - 32 - 1.3 (Core) V, 3.3 (Digital) V
New
RS Stock No. 218-4420
Mfr. Part No.XMC1202T028X0064ABXUMA1
BrandInfineon
MYR5.902
Each (On a Reel of 3000)
units
XMC1202 TSSOP Through Hole 28 ARM Cortex M0 32bit 64 kB 32MHz - - - - - -
RS Stock No. 110-7117
Mfr. Part No.XE164FM72F80LRABKXUMA1
BrandInfineon
MYR51.52
Each
units
XE166 LQFP Surface Mount 100 C166 16bit - 80MHz - - - 16 - 1.4 → 1.6 V
RS Stock No. 914-0084
Mfr. Part No.XMC1301T038F0032ABXUMA1
BrandInfineon
MYR9.502
Each (In a Pack of 5)
units
XMC1000 TSSOP Surface Mount 38 ARM Cortex M0 32bit 32 kB 66.4MHz 16 kB - - 16 - 1.8 → 5.5 V
RS Stock No. 166-1074
Mfr. Part No.XE169FH200F100LABKXQSA1
BrandInfineon
MYR85.048
Each (In a Tray of 40)
units
XE166 LQFP Surface Mount 176 C166 16bit 1.6 MB 100MHz 112 kB - - 30 - 1.5 V
New
RS Stock No. 218-4413
Mfr. Part No.TLE9844QXXUMA1
BrandInfineon
MYR8.95
Each (On a Reel of 2500)
units
TLE984x VQFN Surface Mount 48 ARM Cortex M0 32bit 64 kB 25MHz - - - - - -
RS Stock No. 110-7769
Mfr. Part No.XC167CI32F40FBBAKXQMA1
BrandInfineon
MYR141.34
Each
units
XC166 TQFP Surface Mount 144 C166S V2 16bit 256 kB 20MHz 2 (DPRAM) kB, 4 (DSRAM) kB, 6 (PSRAM) kB - - 16 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
RS Stock No. 110-9086
Mfr. Part No.XC161CJ16F40FBBKXUMA1
BrandInfineon
MYR117.21
Each
units
XC166 TQFP Surface Mount 144 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 12 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
New
RS Stock No. 218-4405
Mfr. Part No.TC212L8F133NACKXUMA1
BrandInfineon
MYR68.902
Each (On a Reel of 1800)
units
TC21x TQFP Surface Mount 80 TriCore 32bit 1 MB 133MHz - - - - - -
RS Stock No. 166-0919
Mfr. Part No.XC161CJ16F40FBBKXUMA1
BrandInfineon
MYR102.358
Each (On a Reel of 1000)
units
XC166 TQFP Surface Mount 144 C166S V2 16bit 128 kB 20MHz 2 (DPRAM) kB, 2 (PSRAM) kB, 4 (DSRAM) kB - - 12 - 2.35 → 2.7 (Core) V, 4.4 → 5.5 (I/O) V
New
RS Stock No. 218-4408
Mfr. Part No.TC233L32F200NACKXUMA1
BrandInfineon
MYR88.68
Each
units
TC23x TQFP Surface Mount 100 TriCore 32bit 2 MB 200MHz - - - - - -