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 901-6158
製造零件編號R5F52105BDFM#30
TWD228
單位
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 901-5468
製造零件編號R5F564MLCDFC#V1
TWD702
單位
RX LQFP Surface Mount 176 RXv2 CPU 32bit 4 (ROM) MB, 64 (Flash) kB 120MHz 512 kB 1 x OTG, 1 x Peripheral - 29 - 2.7 → 3.6 V
RS庫存編號 757-8308
製造零件編號R5F563NBDDFP#V0
TWD474
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 901-5414
製造零件編號R5F562TAADFH#V1
TWD263
單位
RX LQFP Surface Mount 112 RX CPU 32bit 32 (Flash) kB, 256 (ROM) kB 100MHz 16 kB - - 20 - 5 V
RS庫存編號 828-3751
製造零件編號R5F562T6DDFM#V1
TWD204
單位
RX LQFP Surface Mount 64 RX 32bit 64 kB 100MHz 8 kB - - 4 1 4 → 5.5 V
RS庫存編號 828-3739
製造零件編號R5F562GAADFH#V1
TWD274
單位
RX LQFP Surface Mount 112 RX 32bit 256 kB 100MHz 16 kB - - 4, 12 1 4 → 5.5 V
RS庫存編號 828-3613
製造零件編號R5F51114ADFL#30
TWD101
/個 (每包:2個)
單位
RX LFQFP Surface Mount 48 RX 32bit 96 kB 32MHz 16 kB 1 - 14 4 2.7 → 3.6 V
RS庫存編號 901-5458
製造零件編號R5F563TBADFP#V0
TWD281
單位
RX LQFP Surface Mount 100 RX CPU 32bit 256 kB 100MHz 24 kB - - 20 - 3.3 V, 5 V
RS庫存編號 901-5424
製造零件編號R5F56316CDFB#V0
TWD336
單位
RX LQFP Surface Mount 144 RX CPU 32bit 32 (Flash) kB, 256 (ROM) kB 100MHz 128 kB 1 x Host - 29 - 2.7 → 3.6 V
RS庫存編號 828-3815
製造零件編號R5F562TAEDFP#V1
TWD261
單位
RX LQFP Surface Mount 100 RX 32bit 256 kB 100MHz 16 kB - - 4, 12 1 2.7 → 3.6 V
RS庫存編號 828-3828
製造零件編號R5F5630ADDFB#V0
TWD373
單位
RX LQFP Surface Mount 144 RX 32bit 768 kB 100MHz 96 kB 1 - 8, 21 3 2.7 → 3.6 V
RS庫存編號 828-3896
製造零件編號R5F563NADDFB#V0
TWD440
單位
RX LQFP Surface Mount 144 RX 32bit 768 kB 100MHz 128 kB 2 - 8, 21 3 2.7 → 3.6 V
RS庫存編號 177-4980
製造零件編號R5F5631BDDFC
TWD518
Each (In a Tray of 40)
單位
RX LQFP Surface Mount 176 RX 32bit 1 MB 100MHz 128 kB 2 - 8, 21 3 2.7 → 3.6 V
RS庫存編號 901-6170
製造零件編號R5F5210ABDFP#30
TWD336
單位
RX LFQFP Surface Mount 100 RX 32bit 8 (Flash) kB, 768 (ROM) kB 50MHz 96 kB - - 16 - 1.62 → 5.5 V
RS庫存編號 828-3907
製造零件編號R5F563TEADFB#V0
TWD422
單位
RX LQFP Surface Mount 144 RX 32bit 512 kB 100MHz 48 kB 1 - 4, 20 2 2.7 → 3.6 V
RS庫存編號 177-5001
製造零件編號R5F5631ADDFP
TWD384
Each (In a Tray of 90)
單位
RX LQFP Surface Mount 100 RX 32bit 768 kB 100MHz 128 kB 2 - 8, 21 3 2.7 → 3.6 V
RS庫存編號 757-8229
製造零件編號R5F5631BDDFP#V0
TWD309
單位
RX LFQFP Surface Mount 100 RX631 32bit 1 MB 100MHz 128 kB 2 1 22 3 2.7 → 3.6 V
RS庫存編號 901-6136
製造零件編號R5F51111ADFL#3A
TWD97
/個 (每包:2個)
單位
RX LFQFP Surface Mount 48 RX 32bit 8 (Flash) kB, 32 (ROM) kB 32MHz 10 kB 1 - 10 - 1.8 → 3.6 V
RS庫存編號 901-6133
製造零件編號R5F51105ADFM#30
TWD105
/個 (每包:2個)
單位
RX LFQFP Surface Mount 64 RX 32bit 128 kB 32MHz 16 kB - - 14 - 1.8 → 3.6 V
RS庫存編號 828-3802
製造零件編號R5F562TADDFP#V1
TWD308
單位
RX LQFP Surface Mount 100 RX 32bit 256 kB 100MHz 16 kB - - 4, 12 1 4 → 5.5 V