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 829-1024
製造零件編號R5F10WMGAFB#30
TWD126.00
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RL78 LQFP Surface Mount 80 RL78 16bit 4 kB, 128 kB 24MHz 8 kB - 1 12 2 1.6 → 5.5 V
RS庫存編號 828-3584
製造零件編號R5F10WMEAFB#30
TWD124.50
/個 (每包:2個)
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RL78 LQFP Surface Mount 80 RL78 16bit 64 kB 24MHz 4 kB - - 12 2 1.6 → 5.5 V
RS庫存編號 901-6158
製造零件編號R5F52105BDFM#30
TWD228.00
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RX LFQFP Surface Mount 64 RX 32bit 8 (Flash) kB, 128 (ROM) kB 50MHz 20 kB - - 12 - 1.62 → 5.5 V
RS庫存編號 663-3861
製造零件編號UPD78F0455GB-GAH-AX
TWD186.00
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78K0 LQFP Surface Mount 64 78K0 8bit 60 kB 10MHz 2 kB - 2 8 - 1.8 → 5.5 V
RS庫存編號 739-6945
製造零件編號UPD78F0455GB-GAH-AX
TWD102.00
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UPD78 LQFP Surface Mount 64 78K0 8bit 60 kB 10MHz 3 kB - 2 8 1 1.8 → 5.5 V
RS庫存編號 663-4056
製造零件編號M30260F8BGP
TWD251.00
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R8C LQFP Surface Mount 48 M16C/26A 16bit 64 kB 24MHz 2 kB - 1 12 - 4.2 → 5.5 V
RS庫存編號 124-0563
製造零件編號R5F5110HADNF#U0
TWD79.50
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RX110 HWQFN Surface Mount 40 RX 32bit 8 kB 32MHz 8 kB - - 8 - 1.8 → 3.6 V
RS庫存編號 124-0484
製造零件編號R5F523T3ADFL#30
TWD96.50
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RX23T LFQFP Surface Mount 48 RX 32bit 64 kB 40MHz 12 kB - - 10 - 2.7 → 5.5 V
RS庫存編號 772-6305
製造零件編號R5F102AAASP#30
TWD60.60
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RL78 SSOP Surface Mount 30 RL78 16bit 2 kB, 16 kB 24MHz 2 kB - 1 8 3 1.8 → 5.5 V
RS庫存編號 242-790
製造零件編號R5F21236JFP
TWD239.00
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R8C LQFP Surface Mount 48 R8C/23 16bit 2 kB, 32 kB 20MHz 2 kB - - 12 - 2.7 → 5.5 V
RS庫存編號 124-0577
製造零件編號R5F51113ADNF#UA
TWD105.50
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RX111 HWQFN Surface Mount 40 RX 32bit 64 kB 32MHz 10 kB 1 - 8 - 1.8 → 3.6 V
RS庫存編號 124-0536
製造零件編號R5F562TAADFH#V3
TWD295.00
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RX62T LQFP Surface Mount 112 RX 32bit 256 kB 100MHz 16 kB - - 20 - 5 V
RS庫存編號 732-9878
製造零件編號R5F72167ADFP
TWD995.00
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SuperH LFQFP Surface Mount 176 SH-2A-FPU 32bit 1 MB 200MHz 32 MB, 128 kB 1 x Host 2 8 1 3 → 3.6 V, 4 → 5.5 V
RS庫存編號 757-8308
製造零件編號R5F563NBDDFP#V0
TWD474.00
單位
RX LFQFP Surface Mount 100 RX63N 32bit 1 MB 100MHz 128 kB 2 1 22 3 2.7 → 3.6 V
RS庫存編號 775-3900
製造零件編號R7F0C30542ESP#AC0
TWD8.00
/個 (每包:25個)
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R7F0C30 SSOP Surface Mount 16 78K0 8bit 16 kB 10MHz 768 B - - 6 - 1.8 → 5.5 V
RS庫存編號 829-1239
製造零件編號R5F100PJDFB#30
TWD198.00
單位
RL78/G13 LFQFP Surface Mount 100 RL78 16bit 256 kB 32MHz 20 kB - - 20 8 1.6 → 5.5 V
RS庫存編號 829-1011
製造零件編號R5F10RGCAFB#V0
TWD83.00
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RL78 LQFP Surface Mount 48 RL78 16bit 2 kB, 32 kB 24MHz 1.5 kB - 1 9 2 1.6 → 5.5 V
RS庫存編號 501-6886
製造零件編號R5F21134FP
TWD128.00
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R8C LQFP Surface Mount 32 R8C/13 16bit 4 kB, 16 kB 20MHz 1 kB - - 12 - 2.7 → 5.5 V
RS庫存編號 621-1054
製造零件編號R5F21134FP
TWD122.00
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R8C LQFP Surface Mount 32 R8C/13 16bit 4 kB, 16 kB 20MHz 1 kB - - 12 - 2.7 → 5.5 V
RS庫存編號 901-6275
製造零件編號UPD78F0502AMC-CAB-AX
TWD70.30
個 (以毎袋:4)
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78K LSSOP Surface Mount 30 78K0 8bit 24 kB 20MHz 1.024 kB - - 4 - 1.8 → 5.5 V