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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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Part Details | Brand | Family Name | Recently Introduced | 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 | Instruction Set Architecture | Program Memory Type | Dimensions | ADCs | Pulse Width Modulation | Timers | Length | Width | Height | Data Rate | PWM Channels | Number of Timers | PWM Resolution | Timer Resolution | ADC Resolution | Number of I2C Channels | Number of UART Channels | Maximum Operating Temperature | Number of USART Channels | Number of ADC Units | Number of LIN Channels | Number of CAN Channels | Minimum Operating Temperature | Maximum Number of Ethernet Channels | Number of Ethernet Channels | Number of PCI Channels |
Microchip Technology ATMEGA328P-MUR, 8bit AVR Microcontroller, 20MHz, 32 kB Flash, 32-Pin QFN
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Microchip Technology | ATmega | - | QFN | Surface Mount | 32 | AVR | 8bit | 32 kB | 20MHz | 2 kB | - | 1 | 8 | 2 | 5.5 (Maximum) V | RISC | Flash | 5.1 x 5.1 x 1mm | 1 (8 x 10 bit) | 1 (6 Channel) | 1 (1 x 16 bit), 1 (2 x 8 bit) | 5.1mm | 5.1mm | 1mm | - | 6 | 2 | - | 8 bit, 16 bit | 10bit | 1 | 1 | +105 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATXMEGA128A4U-MHR, 8 bit, 16 bit AVR Microcontroller, 32MHz, 128 kB Flash, 44-Pin VQFN
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Microchip Technology | ATxmega | - | VQFN | Surface Mount | 44 | AVR | 8 bit, 16 bit | 128 kB | 32MHz | 8 kB | 1 | 1 | 12 | 2 | 3.6 (Maximum) V | RISC | Flash | 7.1 x 7.1 x 0.95mm | 1 (12 x 12 bit) | 1 (16 Channel) | - | 7.1mm | 7.1mm | 0.95mm | - | 16 | 1 | - | 16bit | 12bit | 2 | 5 | +85 °C | 5 | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATTINY13A-SSUR, 8bit AVR Microcontroller, 20MHz, 1 kB Flash, 8-Pin SOIC
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Microchip Technology | ATtiny | - | SOIC | Surface Mount | 8 | AVR | 8bit | 1 kB | 20MHz | 64 B | - | 1 | 4 | 1 | 5.5 (Maximum) V | RISC | Flash | 5 x 4 x 1.5mm | 1 (4 x 10 bit) | 1 (2 x 8 bit) | - | 5mm | 4mm | 1.5mm | - | 2 | 1 | 8bit | 8bit | 10bit | - | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Cypress Semiconductor CY8C21123-24SXI, 8bit PSoC Microcontroller, 24MHz, 4 kB Flash, 8-Pin SOIC
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Cypress Semiconductor | M8C | - | SOIC | Surface Mount | 8 | PSoC | 8bit | 4 kB | 24MHz | 256 B | - | 2 | 8 | 1 | 5.25 (Maximum) V | Harvard | Flash | 4.97 x 3.98 x 1.47mm | 2 (8 x 10 bit) | 1 (1 x 16 bit), 1 (1 x 8 bit) | - | 4.97mm | 3.98mm | 1.47mm | - | 2 | 2 | 8 bit, 16 bit | 8 bit, 32 bit | 10bit | 1 | 1 | +85 °C | - | 2 | - | - | -40 °C | - | - | - |
Microchip Technology PIC12F509T-I/SN, 8bit PIC Microcontroller, 20MHz, 1.5 kB Flash, 8-Pin SOIC
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Microchip Technology | PIC12F | - | SOIC | Surface Mount | 8 | PIC | 8bit | 1.5 kB | 20 | 41 B | - | - | - | - | 5.5 (Maximum) V | RISC | Flash | 4.9 x 3.9 x 1.5mm | - | - | - | 4.9mm | 3.9mm | 1.5mm | - | - | 1 | - | 8bit | - | - | - | +85 °C | - | - | - | - | -40 °C | - | - | - |
Microchip Technology PIC18F26K22T-I/ML, 8bit PIC Microcontroller, 64MHz, 64 kB Flash, 28-Pin QFN
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Microchip Technology | PIC18F | - | QFN | Surface Mount | 28 | PIC | 8bit | 64 kB | 64MHz | 3.896 kB | - | 1 | 19 | 2 | 5.5 (Maximum) V | - | Flash | 6 x 6 x 0.95mm | 1 (19 x 10 bit) | 1 (2 x 10 bit) | 1 (3 x 8 bit), 1 (4 x 16 bit) | 6mm | 6mm | 0.95mm | - | 2 | 2 | 10bit | 8 bit, 16 bit | 10bit | 2 | 2 | +85 °C | 2 | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC12F683T-I/SN, 8bit PIC Microcontroller, 20MHz, 3.5 kB Flash, 8-Pin SOIC
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Microchip Technology | PIC12F | - | SOIC | Surface Mount | 8 | PIC | 8bit | 3.5 kB | 20 | 128 B | - | 1 | 4 | - | 5.5 (Maximum) V | RISC | Flash | 4.9 x 3.9 x 1.5mm | 1 (4 x 10 bit) | 1 (1 x 10 bit) | 1 (1 x 16 bit), 1 (2 x 8 bit) | 4.9mm | 3.9mm | 1.5mm | - | 1 | 2 | 10bit | 8 bit, 16 bit | 10bit | - | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATTINY44A-SSUR, 8bit AVR Microcontroller, 20MHz, 4 kB Flash, 14-Pin SOIC
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Microchip Technology | ATtiny | - | SOIC | Surface Mount | 14 | AVR | 8bit | 4 kB | 20MHz | 256 B | - | 1 | 8 | 1 | 5.5 (Maximum) V | RISC | Flash | 8.74 x 3.99 x 1.5mm | 1 (8 x 10 bit) | 1 (2 x 8 bit) | 1 (1 x 16 bit), 1 (1 x 8 bit) | 8.74mm | 3.99mm | 1.5mm | - | 2 | 2 | 8bit | 8 bit, 16 bit | 10bit | 1 | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATTINY84A-SSUR, 8bit AVR Microcontroller, 20MHz, 8 kB Flash, 14-Pin SOIC
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Microchip Technology | ATtiny | - | SOIC | Surface Mount | 14 | AVR | 8bit | 8 kB | 20MHz | 512 B | - | 1 | 8 | 1 | 5.5 (Maximum) V | RISC | Flash | 8.74 x 3.99 x 1.5mm | 1 (8 x 10 bit) | 1 (2 x 8 bit) | 1 (1 x 16 bit), 1 (1 x 8 bit) | 8.74mm | 3.99mm | 1.5mm | - | 2 | 2 | 8bit | 8 bit, 16 bit | 10bit | 1 | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC16F18345-I/SS, 8bit 8 bit CPU Microcontroller, 32MHz, 14 kB Flash, 20-Pin SSOP
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Microchip Technology | PIC16F | - | SSOP | Surface Mount | 20 | 8 bit CPU | 8bit | 14 kB | 32 | 1 kB | - | 1 | 17 | 2 | 5.5 (Maximum) V | - | Flash | 7.5 x 5.6 x 1.85mm | 1 (17 x 10 bit) | 1 (2 x 10 bit) | - | 7.5mm | 5.6mm | 1.85mm | - | 2 | 2 | 10bit | 8 bit, 16 bit | 10bit | 2 | 1 | +85 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC16F616T-I/SL, 8bit PIC Microcontroller, 20MHz, 3.5 kB Flash, 14-Pin SOIC
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Microchip Technology | PIC16F | - | SOIC | Surface Mount | 14 | PIC | 8bit | 3.5 kB | 20 | 128 B | - | 1 | 8 | - | 5.5 (Maximum) V | RISC | Flash | 8.65 x 3.9 x 1.5mm | 1 (8 x 10 bit) | 1 (4 x 10 bit) | 1 (1 x 16 bit), 1 (2 x 8 bit) | 8.65mm | 3.9mm | 1.5mm | - | 4 | 2 | 10bit | 8 bit, 16 bit | 10bit | - | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC16F1824T-I/SL, 8bit 8 bit CPU Microcontroller, 32MHz, 7 kB Flash, 14-Pin SOIC
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Microchip Technology | PIC16F | - | SOIC | Surface Mount | 14 | 8 bit CPU | 8bit | 7 kB | 32 | 256 B | - | 1 | 8 | 1 | 5.5 (Maximum) V | RISC | Flash | 8.65 x 3.9 x 1.5mm | 1 (8 x 10 bit) | 1 (2 x 10 bit) | - | 8.65mm | 3.9mm | 1.5mm | - | 2 | 2 | 10bit | 8 bit, 16 bit | 10bit | 1 | 1 | +85 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Cypress Semiconductor CY8C4014SXI-420T, 32bit ARM Cortex M0 Microcontroller, 16MHz, 16 kB Flash, 8-Pin SOIC
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Cypress Semiconductor | CY8C4000 | - | SOIC | Surface Mount | 8 | ARM Cortex M0 | 32bit | 16 kB | 16 | 2 kB | 1 | 1 | 1 | 1 | 1.8 → 5.5 V | Thumb-2 | Flash | 4.97 x 3.98 x 1.47mm | - | 1 (1 x 16 bit) | 1 (1 x 16 bit) | 4.97mm | 3.98mm | 1.47mm | - | 1 | 1 | 16bit | 16bit | - | 1 | 1 | +85 °C | 0 | 1 | 1 | 1 | -40 °C | 0 | 0 | 0 |
Microchip Technology PIC16F1825T-I/ST, 8bit 8 bit CPU Microcontroller, 32MHz, 14 kB Flash, 14-Pin TSSOP
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Microchip Technology | PIC16F | - | TSSOP | Surface Mount | 14 | 8 bit CPU | 8bit | 14 kB | 32 | 1 kB | - | 1 | 8 | 1 | 5.5 (Maximum) V | RISC | Flash | 5.1 x 4.5 x 1.05mm | 1 (8 x 10 bit) | 1 (2 x 10 bit) | - | 5.1mm | 4.5mm | 1.05mm | - | 2 | 2 | 10bit | 8 bit, 16 bit | 10bit | 1 | 1 | +85 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC12F1572T-I/MS, 8bit 8 bit CPU Microcontroller, 32MHz, 3.5 kB Flash, 8-Pin MSOP
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Microchip Technology | PIC12F | - | MSOP | Surface Mount | 8 | 8 bit CPU | 8bit | 3.5 kB | 32 | 256 B | - | 1 | 4 | - | 5.5 (Maximum) V | - | Flash | 3 x 3 x 0.95mm | 1 (4 x 10 bit) | 1 (3 x 16 bit) | - | 3mm | 3mm | 0.95mm | - | 3 | 2 | 16bit | 8 bit, 16 bit | 10bit | - | - | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology PIC18F25K20T-I/SS, 8bit PIC Microcontroller, 64MHz, 32 kB Flash, 28-Pin SSOP
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Microchip Technology | PIC18F | - | SSOP | Surface Mount | 28 | PIC | 8bit | 32 kB | 64 | 1.536 kB | - | 1 | 13 | 1 | 3.6 (Maximum) V | - | Flash | 10.5 x 5.6 x 1.85mm | 1 (13 x 10 bit) | 1 (1 x 10 bit) | - | 10.5mm | 5.6mm | 1.85mm | 16Mbit/s | 1 | 2 | 10bit | 8 bit, 16 bit | 10bit | 1 | 1 | +125 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Cypress Semiconductor CY8C27243-24PVXIT, 8bit PSoC Microcontroller, 24MHz, 16 kB Flash, 20-Pin SSOP
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Cypress Semiconductor | M8C | - | SSOP | Surface Mount | 20 | PSoC | 8bit | 16 kB | 24MHz | 256 B | - | 2 | 1 | 1 | 5.25 (Maximum) V | Harvard | Flash | 7.4 x 5.6 x 1.85mm | 1 (1 x 14 bit) | 1 (1 x 16 bit), 1 (1 x 8 bit) | - | 7.4mm | 5.6mm | 1.85mm | - | 2 | 2 | 8 bit, 16 bit | 8 bit, 32 bit | 14bit | 1 | 2 | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATMEGA168-20AUR, 8bit AVR Microcontroller, 20MHz, 16 kB Flash, 32-Pin TQFP
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Microchip Technology | ATmega | - | TQFP | Surface Mount | 32 | AVR | 8bit | 16 kB | 20MHz | 1 kB | - | 1 | 8 | 2 | 5.5 (Maximum) V | RISC | Flash | 7.1 x 7.1 x 1.05mm | 1 (8 x 10 bit) | 1 (6 Channel) | 1 (1 x 16 bit), 1 (2 x 8 bit) | 7.1mm | 7.1mm | 1.05mm | - | 6 | 2 | - | 8 bit, 16 bit | 10bit | 2 | 1 | +85 °C | 1 | 1 | - | - | -40 °C | - | - | - |
Cypress Semiconductor CY8C24123A-24SXI, 8bit PSoC Microcontroller, 24MHz, 4 kB Flash, 8-Pin SOIC
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Cypress Semiconductor | M8C | - | SOIC | Surface Mount | 8 | PSoC | 8bit | 4 kB | 24MHz | 256 B | - | 2 | 1 | 1 | 5.25 (Maximum) V | Harvard | Flash | 4.97 x 3.98 x 1.47mm | 1 (1 x 14 bit) | 1 (1 x 16 bit), 1 (1 x 8 bit) | - | 4.97mm | 3.98mm | 1.47mm | - | 2 | 2 | 8 bit, 16 bit | 8 bit, 32 bit | 14bit | 1 | 1 | +85 °C | - | 1 | - | - | -40 °C | - | - | - |
Microchip Technology ATMEGA168-20AU, 8bit AVR Microcontroller, 20MHz, 16 kB Flash, 32-Pin TQFP
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Microchip Technology | ATmega | - | TQFP | Surface Mount | 32 | AVR | 8bit | 16 kB | 20 | 1 kB | - | 1 | 8 | 1 | 5.5 (Maximum) V | RISC | Flash | 7.1 x 7.1 x 1.05mm | 1 (8 x 10 bit) | 1 (6 x 16 bit) | 1 (1 x 16 bit), 1 (2 x 8 bit) | 7.1mm | 7.1mm | 1.05mm | - | 6 | 2 | 16bit | 8 bit, 16 bit | 10bit | 1 | 1 | +85 °C | 1 | 1 | - | - | -40 °C | - | - | - |
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