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 902-8221
製造零件編號R5F72375ADFP#V0
HK$126.73
單位
SuperH LQFP Surface Mount 120 SH-2A 32bit 32 (Flash) kB, 512 (ROM) kB 160MHz 64 kB - - 16 - 3 → 3.6 V
RS庫存編號 775-3903
製造零件編號R7F0C80112ESP#AA0
HK$1.933
/個 (每包:25個)
單位
R7F0C80 LSSOP Surface Mount 10 RL78-S1 8bit 1 kB 5MHz 128 B - - 4 1 2.4 → 5.5 V
RS庫存編號 901-6192
製造零件編號R5F56218BDFB#V0
HK$80.70
單位
RX600 LFQFP Surface Mount 144 RX 32bit 512 kB 100MHz 96 kB 2 1 12 2 2.7 → 3.6 V
RS庫存編號 757-8184
製造零件編號R5F56218BDFB#V0
HK$84.49
單位
RX600 LFQFP Surface Mount 144 RX 32bit 512 kB 100MHz 96 kB 2 1 12 2 2.7 → 3.6 V
RS庫存編號 758-1455
製造零件編號R5F100LFAFB#V0
HK$23.23
單位
RL78/G13 LQFP Surface Mount 64 RL78/G13 16bit 96 kB 32MHz 8 kB - 1 12 - 1.6 → 5.5 V
RS庫存編號 663-4050
製造零件編號M30263F8BFP
HK$78.59
單位
R8C SSOP Surface Mount 42 M16C/26A 16bit 64 kB 24MHz 2 kB - 1 10 - 4.2 → 5.5 V
RS庫存編號 757-8471
製造零件編號UPD78F1146AGB-GAH-AX
HK$50.49
單位
UPD LFQFP Surface Mount 64 78K0R 16bit 256 kB 20MHz 12 kB - 1 8 - 1.8 → 5.5 V
RS庫存編號 177-5038
製造零件編號R5F100GDAFB
HK$17.929
Each (In a Tray of 250)
單位
RL78/G13 LQFP Surface Mount 48 RL78 16bit 48 kB 32MHz 3 kB - - 10 5 1.6 → 5.5 V
RS庫存編號 789-3339
製造零件編號R5F100GDAFB
HK$26.75
單位
RL78/G13 LQFP Surface Mount 48 RL78 16bit 48 kB 32MHz 3 kB - - 10 5 1.6 → 5.5 V
RS庫存編號 177-5011
製造零件編號R5F100LFAFB#V0
HK$23.487
Each (In a Tray of 160)
單位
RL78/G13 LQFP Surface Mount 64 RL78/G13 16bit 96 kB 32MHz 8 kB - 1 12 - 1.6 → 5.5 V
RS庫存編號 901-5424
製造零件編號R5F56316CDFB#V0
HK$78.17
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 757-8229
製造零件編號R5F5631BDDFP#V0
HK$88.11
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 124-3698
製造零件編號R5F571MFCDFC#V0
HK$186.76
單位
RX71M LQFP Surface Mount 176 - 32bit 2 MB 240MHz 512 kB 1 - 29 - 1.7 → 3.6 V
RS庫存編號 376-035
製造零件編號R5F212CCSNFP
HK$66.99
單位
R8C LQFP Surface Mount 80 R8C/2C 16bit 128 kB 20MHz 7.5 kB - 2 20 - 2.2 → 5.5 V
RS庫存編號 641-2061
製造零件編號HD64F7044F28V
HK$335.87
單位
H8 PQFP Surface Mount 112 SH-2 32bit 256 kB 28MHz 4 kB - - 8 - 4.5 → 5.5 V
RS庫存編號 901-6095
製造零件編號R5F10Y16ASP#X0
HK$4.418
/個 (每包:10個)
單位
RL78 LSSOP Surface Mount 10 RL78 16bit 2 kB 20MHz 250 B - - 4 - 2 → 5.5 V
RS庫存編號 124-0451
製造零件編號R5F52315ADFL#30
HK$37.99
單位
RX231 LFQFP Surface Mount 48 RXv2 CPU 32bit 128 kB 54MHz 32 kB 1 - 8 - 1.8 → 5.5 V
RS庫存編號 902-8293
製造零件編號R7S721020VCBG#AC1
HK$123.51
單位
RZ LFBGA Surface Mount 176 Cortex A9 32bit - 400MHz 3.072 MB 2 - 8 - 3 → 3.6 V
RS庫存編號 901-6105
製造零件編號R5F10Y17ASP#30
HK$4.68
/個 (每包:10個)
單位
RL78 LSSOP Surface Mount 10 RL78 16bit 4 kB 20MHz 500 B - - 4 - 2 → 5.5 V
RS庫存編號 757-8377
製造零件編號R5F213G6CNSP#U0
HK$31.96
單位
R8C LSSOP Surface Mount 24 R8C 16bit 32 kB 20MHz 2.5 kB - 1 8 - 2.7 → 5.5 V