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 179-2309
製造零件編號CY8C20496A-24LQXI
HK$27.721
Each (In a Tray of 490)
單位
M8C QFN Surface Mount 32 PSoC 8bit 16 kB 24MHz 2 kB 1 - 1 4 5.5 (Maximum) V
RS庫存編號 179-2310
製造零件編號CY8C21123-24SXI
HK$18.40
毎管:97 個
單位
M8C SOIC Surface Mount 8 PSoC 8bit 4 kB 24MHz 256 B - 2 8 1 5.25 (Maximum) V
RS庫存編號 179-2319
製造零件編號CY8C20496A-24LQXI
HK$32.433
/個 (每包:3個)
單位
M8C QFN Surface Mount 32 PSoC 8bit 16 kB 24MHz 2 kB 1 - 1 4 5.5 (Maximum) V
RS庫存編號 179-2311
製造零件編號CY8C21234-24SXI
HK$29.69
毎管:48 個
單位
M8C SOIC Surface Mount 16 PSoC 8bit 8 kB 24MHz 512 B - 2 28 1 5.25 (Maximum) V
RS庫存編號 179-2328
製造零件編號CY8C21334-24PVXIT
HK$40.90
/個 (每包:3個)
單位
M8C SSOP Surface Mount 20 PSoC 8bit 8 kB 24MHz 512 B - 2 28 1 5.25 (Maximum) V
RS庫存編號 194-9045
製造零件編號CY8C4248LQI-BL543
HK$37.67
Each (In a Tray of 260)
單位
CY8C4248LQI QFN Surface Mount 56 ARM Cortex-M0 CPU 32bit 256 kB 48MHz 32 kB - 1 1 1 1.71 → 5.5 V
RS庫存編號 188-5379
製造零件編號CY8C5868LTI-LP039
HK$101.637
Each (In a Tray of 260)
單位
CY8C58LP QFN Surface Mount 68 ARM Cortex-M3 32bit 256 kB 67MHz 64 kB 1 - 3 - 1.8 → 5.5 V
RS庫存編號 179-2312
製造零件編號CY8C21334-24PVXIT
HK$19.42
個 (在毎卷:2000)
單位
M8C SSOP Surface Mount 20 PSoC 8bit 8 kB 24MHz 512 B - 2 28 1 5.25 (Maximum) V
RS庫存編號 194-9097
製造零件編號CY8C20336A-24LQXI
HK$23.431
Each (In a Tray of 490)
單位
CY8C20336A QFN Surface Mount 24 - 8bit 8 kB 24MHz 1 kB 1 - 1 1 1.71 → 5.5 V
RS庫存編號 184-0711
製造零件編號CY8C6336BZI-BLF03
HK$55.564
Each (In a Tray of 364)
單位
PSoC 6 BGA Surface Mount 116 ARM Cortex M4F 32bit 512 kB 150MHz 128 kB 1 - 16 9 3.6 (Maximum) V
RS庫存編號 179-2335
製造零件編號CY8C21534-24PVXIT
HK$31.373
/個 (每包:3個)
單位
M8C SSOP Surface Mount 28 PSoC 8bit 8 kB 24MHz 512 B - 2 28 1 5.25 (Maximum) V
RS庫存編號 188-5365
製造零件編號CY8C4013SXI-400
HK$8.046
毎管:97 個
單位
PSoC 4000 SOIC Surface Mount 8 ARM Cortex M0 32bit 8 kB 16MHz 2 kB - - - - 1.8 → 5.5 V
RS庫存編號 194-9128
製造零件編號CY8C4024LQI-S402
HK$15.012
/個 (每包:5個)
單位
CY8C4024LQI QFN Surface Mount 32 - 32bit 16 kB 24MHz 2 kB - 1 1 1 1.71 → 5.5 V
RS庫存編號 176-9022
製造零件編號CY8C4147AZI-S475
HK$53.74
單位
CY8C4100 TQFP Surface Mount 64 ARM Cortex M0 32bit 128 kB 48MHz 16 kB - 1 2 5 1.8 → 5.5 V
RS庫存編號 176-9016
製造零件編號CY8C4146AXI-S445
HK$44.09
/個 (每包:2個)
單位
CY8C4100 TQFP Surface Mount 64 ARM Cortex M0 32bit 64 kB 48MHz 8 kB - 1 2 5 1.8 → 5.5 V
RS庫存編號 194-9046
製造零件編號CY8C4248LQI-BL543
HK$34.72
/個 (每包:2個)
單位
CY8C4248LQI QFN Surface Mount 56 ARM Cortex-M0 CPU 32bit 256 kB 48MHz 32 kB - 1 1 1 1.71 → 5.5 V
RS庫存編號 124-2966
製造零件編號CY8C5268LTI-LP030
HK$72.03
單位
CY8C52LP QFN Surface Mount 68 ARM Cortex M3 32bit 256 kB 67MHz 64 kB 1 - 1 - 1.8 V, 2.5 V, 3.3 V, 5 V
RS庫存編號 124-2965
製造零件編號CY8C5267LTI-LP089
HK$81.98
/個 (每包:2個)
單位
CY8C52LP QFN Surface Mount 68 ARM Cortex M3 32bit 256 kB 80MHz 32 kB 1 - 1 - 1.8 V, 2.5 V, 3.3 V, 5 V
RS庫存編號 179-2313
製造零件編號CY8C21534-24PVXIT
HK$18.777
個 (在毎卷:1000)
單位
M8C SSOP Surface Mount 28 PSoC 8bit 8 kB 24MHz 512 B - 2 28 1 5.25 (Maximum) V
RS庫存編號 177-1248
製造零件編號CY8C4246AZI-L433
HK$56.99
/個 (每包:2個)
單位
CY8C4200 TQFP Surface Mount 48 ARM Cortex M0 32bit 64 kB 48MHz 8 kB 2 1 1 4 1.8 → 5.5 V