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. 146-1236
Mfr. Part No.Z84C4206PEG
BrandZilog
kr 90,338
Each (In a Tube of 10)
Units
Z80 PDIP Through Hole 40 Z8 8bit - 6MHz - 0 - - 1 4.5 → 5.5 V
RS Stock No. 660-0766
Mfr. Part No.Z84C4206PEG
BrandZilog
kr 98,30
Each
Units
Z80 PDIP Through Hole 40 Z8 8bit - 6MHz - 0 - - 1 4.5 → 5.5 V
RS Stock No. 625-9090
Mfr. Part No.Z84C3006PEG
BrandZilog
kr 44,87
Each
Units
Z80 PDIP Through Hole 28 Z8 8bit - 6.17MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 169-8231
Mfr. Part No.Z84C3006PEG
BrandZilog
kr 40,245
Each (In a Tube of 15)
Units
Z80 PDIP Through Hole 28 Z8 8bit - 6.17MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 169-8230
Mfr. Part No.Z84C2006PEG
BrandZilog
kr 41,376
Each (In a Tube of 10)
Units
Z80 PDIP Through Hole 40 Z80 8bit - 6.17MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 625-9084
Mfr. Part No.Z84C2006PEG
BrandZilog
kr 45,56
Each
Units
Z80 PDIP Through Hole 40 Z80 8bit - 6.17MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 660-0833
Mfr. Part No.Z8F6422AR020SG
BrandZilog
kr 54,84
Each
Units
Z8 Encore! XP LQFP Surface Mount 64 Z8 8bit 64 kB 20MHz 4 kB 0 1 12 1 3 → 3.6 V
RS Stock No. 660-0836
Mfr. Part No.Z8F6421AN020SG
BrandZilog
kr 55,13
Each
Units
Z8 Encore! XP LQFP Surface Mount 44 Z8 8bit 64 kB 20MHz 4 kB 0 1 8 1 3 → 3.6 V
RS Stock No. 165-8930
Mfr. Part No.Z86E3016SSG
BrandZilog
kr 52,269
Each (In a Tube of 15)
Units
Z8 SOIC Surface Mount 28 Z8 8bit 4 kB 16MHz 237 B 0 - - 0 3.5 → 5.5 V
RS Stock No. 625-9040
Mfr. Part No.Z84C4008PEG
BrandZilog
kr 91,33
Each
Units
Z80 PDIP Through Hole 40 Z8 8bit - 8MHz - 0 - - 1 4.5 → 5.5 V
RS Stock No. 660-0849
Mfr. Part No.Z8L18020FSG
BrandZilog
kr 101,49
Each
Units
Z80 PQFP Surface Mount 80 Z80 8bit - 20MHz - 0 - - 0 3 → 5.5 V
RS Stock No. 169-8228
Mfr. Part No.Z84C3008PEG
BrandZilog
kr 41,767
Each (In a Tube of 15)
Units
Z80 PDIP Through Hole 28 Z8 8bit - 8MHz - 0 - - 0 4.5 → 5.5 V
RS Stock No. 146-1238
Mfr. Part No.Z8L18020FSG
BrandZilog
kr 85,436
Each (In a Tube of 66)
Units
Z80 PQFP Surface Mount 80 Z80 8bit - 20MHz - 0 - - 0 3 → 5.5 V
RS Stock No. 625-9337
Mfr. Part No.Z8F6421VN020SG
BrandZilog
kr 55,83
Each
Units
Z8 Encore! XP PLCC Surface Mount 44 Z8 8bit 64 kB 20MHz 4 kB 0 1 8 1 3 → 3.6 V
RS Stock No. 169-8334
Mfr. Part No.Z8F6422AR020SG
BrandZilog
kr 40,941
Each (In a Tube of 160)
Units
Z8 Encore! XP LQFP Surface Mount 64 Z8 8bit 64 kB 20MHz 4 kB 0 1 12 1 3 → 3.6 V
RS Stock No. 169-8235
Mfr. Part No.Z8F0822SJ020SG
BrandZilog
kr 25,579
Each (In a Tube of 27)
Units
Z8 Encore! XP SOIC Surface Mount 28 Z8 8bit 8 kB 20MHz 1 kB 0 1 5 1 2.7 → 3.6 V
RS Stock No. 660-0788
Mfr. Part No.Z86E3016SSG
BrandZilog
kr 57,53
Each
Units
Z8 SOIC Surface Mount 28 Z8 8bit 4 kB 16MHz 237 B 0 - - 0 3.5 → 5.5 V
RS Stock No. 165-9325
Mfr. Part No.EZ80F91AZ050EG
BrandZilog
kr 78,78
Each (In a Tray of 60)
Units
eZ80Acclaim! LQFP Surface Mount 144 eZ80 8bit 1 MB, 256 kB 50MHz 528 kB 0 - - 1 3 → 3.6 V
RS Stock No. 625-9488
Mfr. Part No.Z8F0822SJ020SG
BrandZilog
kr 30,21
Each
Units
Z8 Encore! XP SOIC Surface Mount 28 Z8 8bit 8 kB 20MHz 1 kB 0 1 5 1 2.7 → 3.6 V
RS Stock No. 660-0805
Mfr. Part No.Z8F0822SJ020EG
BrandZilog
kr 33,40
Each
Units
Z8 Encore! XP SOIC Surface Mount 28 Z8 8bit 8 kB 20MHz 1 kB 0 1 5 1 2.7 → 3.6 V