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庫存編號 169-8225
製造零件編號Z84C0008PEG
BrandZilog
TWD156.90
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Z80 PDIP Through Hole 40 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-8918
製造零件編號Z84C0008PEG
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TWD159.00
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Z80 PDIP Through Hole 40 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-8996
製造零件編號Z84C3008PEG
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TWD161.00
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Z80 PDIP Through Hole 28 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 169-8228
製造零件編號Z84C3008PEG
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TWD157.00
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Z80 PDIP Through Hole 28 Z8 8bit - 8MHz - - - - - 4.5 → 5.5 V
RS庫存編號 660-0785
製造零件編號Z86E3016PSG
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TWD185.00
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Z8 PDIP Through Hole 28 Z8 8bit 4 kB 16MHz 237 B - - - - 3.5 → 5.5 V
RS庫存編號 165-9032
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TWD183.30
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Z8 PDIP Through Hole 28 Z8 8bit 4 kB 16MHz 237 B - - - - 3.5 → 5.5 V
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製造零件編號Z8F6422AR020SG
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TWD155.80
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Z8 Encore! XP LQFP Surface Mount 64 Z8 8bit 64 kB 20MHz 4 kB - 1 12 1 3 → 3.6 V
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製造零件編號EZ80F91AZ050EG
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TWD291.00
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EZ80Acclaim! LQFP Surface Mount 144 EZ80 8bit 1 MB, 256 kB 50MHz 528 kB - - - 1 3 → 3.6 V
RS庫存編號 165-9326
製造零件編號Z8F6423FT020SG
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TWD173.40
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Z8 Encore! XP PQFP Surface Mount 80 Z8 8bit 64 kB 20MHz 4 kB - 1 12 1 3 → 3.6 V
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TWD149.80
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Z8 Encore! XP LQFP Surface Mount 44 Z8 8bit 64 kB 20MHz 4 kB - 1 8 1 3 → 3.6 V
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RS庫存編號 625-9084
製造零件編號Z84C2006PEG
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Z80 PDIP Through Hole 40 Z80 8bit - 6.17MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-9309
製造零件編號Z8F6423FT020SG
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Z8 Encore! XP PQFP Surface Mount 80 Z8 8bit 64 kB 20MHz 4 kB - 1 12 1 3 → 3.6 V
RS庫存編號 660-0716
製造零件編號EZ80F91AZ050EG
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TWD306.00
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EZ80Acclaim! LQFP Surface Mount 144 EZ80 8bit 1 MB, 256 kB 50MHz 528 kB - - - 1 3 → 3.6 V
RS庫存編號 625-8520
製造零件編號Z86E0812PSG1866
BrandZilog
TWD102.00
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Z8 PDIP Through Hole 18 Z8 8bit 2 kB 12MHz 125 B - - - - 4.5 → 5.5 V
RS庫存編號 146-1236
製造零件編號Z84C4206PEG
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TWD285.80
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Z80 PDIP Through Hole 40 Z8 8bit - 6MHz - - - - 1 4.5 → 5.5 V
RS庫存編號 625-9337
製造零件編號Z8F6421VN020SG
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Z8 Encore! XP PLCC Surface Mount 44 Z8 8bit 64 kB 20MHz 4 kB - 1 8 1 3 → 3.6 V
RS庫存編號 660-0833
製造零件編號Z8F6422AR020SG
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Z8 Encore! XP LQFP Surface Mount 64 Z8 8bit 64 kB 20MHz 4 kB - 1 12 1 3 → 3.6 V
RS庫存編號 169-8231
製造零件編號Z84C3006PEG
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TWD167.10
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Z80 PDIP Through Hole 28 Z8 8bit - 6.17MHz - - - - - 4.5 → 5.5 V
RS庫存編號 625-9078
製造零件編號Z84C0010PEG
BrandZilog
TWD151.00
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Z80 PDIP Through Hole 40 Z80 8bit - 10MHz - - - - - 4.5 → 5.5 V