Microcontroladores

Produtos (18707)

ATSAMC21E16A-MNT - 48MHz Cortex-M0+ MCU, 64KB Flash, CAN-FD | Microchip
ATSAMC21E16A-MNT

ATSAMC21E16A-MNT - 48MHz Cortex-M0+ MCU, 64KB Flash, CAN-FD | Microchip

The Microchip Technology ATSAMC21E16A-MNT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, operating at up to 48 MHz with 64 KB of Flash and 8 KB of SRAM, housed in a 32-pin VQFN (5x5 mm) package. Designed for 5 V tolerant industrial and commercial applications, the device features an integrated CAN-FD controller, a 12-bit 1 Msps ADC, a 16-bit Sigma-Delta ADC, and a built-in Peripheral Touch Controller (PTC) for capacitive touch sensing. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals on one IC. The Cortex-M0+ is the smallest and most energy-efficient member of the ARM Cortex-M family, designed for deterministic embedded control in cost-sensitive applications. Within the broader hierarchy, this part is a microcontroller -> embedded processor -> semiconductor device, and the SAM C21 family specifically targets noisy industrial environments requiring robust 5 V I/O tolerance. Key features of the ATSAMC21E16A-MNT include 6 SERCOM serial communication channels (each configurable as UART, SPI, or I2C), a full-speed USB 2.0 device interface, a 12-channel Event System for inter-peripheral signalling without CPU intervention, and a Self-Programming Flash controller for in-field firmware updates. The 5 V tolerant I/O simplifies interfacing to legacy 5 V sensors and industrial buses, eliminating the need for external level shifters. The integrated PTC supports up to 256 mutual-capacitance touch channels for robust button, slider, and proximity sensing in the presence of moisture and noise. The device operates from a 2.7 V to 5.5 V supply, supports -40 °C to +105 °C industrial temperature range, and includes functional safety (FuSa) features such as a dedicated CRC, a Windowed Watchdog Timer (WWDT), and a Memory Protection Unit (MPU) for IEC 60730 Class B compliance. The Cortex-M0+ core executes the Thumb instruction set with hardware single-cycle multiplication, delivering 0.93 DMIPS/MHz while consuming as little as 50 µA/MHz in active mode. Typical applications include industrial CAN-FD sensor nodes, building automation controllers, automotive body and chassis ECUs (sub-systems), USB-connected human-machine interface (HMI) modules, and capacitive-touch user interfaces for appliances. The wide 5 V tolerance and robust ESD ratings (HBM 4 kV, CDM 500 V) make it particularly suitable for factory-floor equipment, motor-control peripherals, and HVAC controllers. When designing with this MCU, place a 100 nF decoupling capacitor adjacent to each VDD pin and route the analog supply (VDDANA) through a ferrite bead from the digital supply to preserve ADC accuracy. Configure unused pins as outputs driven low to minimize current leakage in battery-backed applications, and ensure JTAG/SWD traces are length-matched and kept under 50 mm to avoid programming failures. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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ATSAMC21E17A-ANT - 48MHz Cortex-M0+ MCU, 128KB Flash, 32-TQFP
ATSAMC21E17A-ANT

ATSAMC21E17A-ANT - 48MHz Cortex-M0+ MCU, 128KB Flash, 32-TQFP

The Microchip Technology ATSAMC21E17A-ANT is an AEC-Q100 Grade 1 qualified 32-bit ARM Cortex-M0+ microcontroller running at 48 MHz with 128 KB of embedded Flash and 16 KB of SRAM, housed in a 32-pin TQFP (7x7 mm) package. It belongs to the SAM C21 functional-safety family, designed for 5 V operation in noisy industrial and automotive environments, and integrates CAN-FD, up to six SERCOM peripherals, a 12-bit ADC, a 10-bit DAC, and a Peripheral Touch Controller (PTC). The device supports operating voltages from 2.7 V to 5.5 V and temperatures from -40 °C to +125 °C. An ARM Cortex-M0+ microcontroller is a 32-bit RISC processor core designed by ARM Holdings for embedded applications where low power consumption, deterministic interrupt handling, and a small silicon footprint are critical. The Cortex-M0+ sits at the low end of the Cortex-M hierarchy and uses the Thumb-2 instruction set; it is widely used in automotive body, sensor, and HMI subsystems as well as in industrial control and IoT edge nodes. The part belongs to the broader category of microcontrollers (MCUs), which integrate CPU core, program memory, data memory, and peripherals into a single chip. Key features of the ATSAMC21E17A-ANT include six SERCOM channels that can each be configured as UART, SPI, or I2C, a CAN-FD controller for high-bandwidth in-vehicle networking, a 12-bit 1 Msps ADC with up to 16 channels, a 10-bit DAC, and the Peripheral Touch Controller supporting capacitive-touch key, slider, and wheel sensing. The device also integrates a 32-bit real-time counter, a watchdog timer, multiple sleep modes, and a single-cycle hardware multiplier for efficient DSP-like operations. Architecturally, the ATSAMC21E17A-ANT uses the Cortex-M0+ core paired with a multi-layer AHB/APB bus matrix that lets DMA-driven peripheral traffic run concurrently with CPU execution. The flash subsystem uses an embedded 128 KB NVM with hardware ECC, and the SRAM includes parity checking for functional-safety diagnostics. An integrated 5 V-tolerant I/O ring allows direct interfacing with legacy industrial transceivers without external level shifters. Typical applications include automotive body and comfort modules using CAN-FD, industrial sensor hubs and PLC I/O, capacitive-touch human-machine interfaces, building automation controllers, and battery-powered IoT edge nodes that benefit from the low-power sleep modes and the 5 V-tolerant I/O. The wide 5 V tolerance also makes the part attractive for retrofit designs that must coexist with 3.3 V MCUs and 5 V transceivers on the same board. When designing with this part, ensure the 32-pin TQFP land pattern is used and that the EIC, SERCOM, and ADC routing requirements from the datasheet are followed to avoid signal-integrity issues on the analog inputs. The AEC-Q100 Grade 1 qualification allows direct use in cabin and under-hood automotive subsystems without additional derating. For designs targeting lower flash densities or smaller packages, the same SAM C21 family provides compatible pinouts at 32-, 48-, and 64-pin TQFP variants. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including recommendations for cross-brand MCUs from STMicroelectronics and NXP that offer comparable functionality in the same 32-pin TQFP footprint.

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ATSAMC21E17A-AUT - 48MHz Cortex-M0+ 128KB MCU | Microchip
ATSAMC21E17A-AUT

ATSAMC21E17A-AUT - 48MHz Cortex-M0+ 128KB MCU | Microchip

The Microchip Technology ATSAMC21E17A-AUT is a 32-bit ARM Cortex-M0+ microcontroller in the SAM C21 family, operating up to 48MHz with 128KB Flash and 16KB SRAM, housed in a 32-pin TQFP (7x7 mm) package rated for the industrial -40C to +85C range. Designed for industrial and commercial applications in electrically noisy environments, it integrates CAN-FD, SERCOM, PTC (Peripheral Touch Controller), and a 12-bit ADC with up to 20 channels. What is a microcontroller? A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (SRAM), and integrated peripherals such as ADC, timers, and communication interfaces. In the semiconductor hierarchy, MCUs sit below microprocessors (MPUs) and are classified as embedded computing devices within the broader category of integrated circuits (ICs). The Cortex-M0+ core specifically targets low-power, deterministic real-time control with a tiny gate count. The ATSAMC21E17A-AUT supports 5V native I/O, enabling direct interface with industrial sensors, motors, and 24V logic-derived signals without level shifters. Functional Safety (FuSa) features include a CRC engine, Windowed Watchdog Timer (WWDT), hardware crypto, and dual brown-out detection. The 5V Cortex-M0+ core delivers 2.46 CoreMark/MHz while consuming under 70 uA/MHz in active mode. Architecturally, the device pairs the Cortex-M0+ core with a 6-channel DMA controller, an Event System for inter-peripheral signaling without CPU intervention, and a 12-bit 1 Msps ADC with oversampling capability. The Peripheral Touch Controller (PTC) supports capacitive touch sensing with up to 256 buttons, while the SERCOM modules are configurable as UART, SPI, or I2C on demand, giving up to six flexible serial channels. Typical applications include industrial motor control, building automation controllers, smart energy metering, automotive body electronics (CAN-FD nodes), and capacitive touch human-machine interfaces. The combination of CAN-FD and 5V tolerance makes it especially attractive for factory-floor PLCs and HVAC controllers. When designing with this MCU, ensure the 32-pin TQFP footprint uses adequate copper pour for thermal dissipation and consider using Atmel Studio 7 or MPLAB X IDE for firmware development. The Device Service Unit (DSU) provides secure boot and Flash CRC verification for functional safety. This page synthesizes distributor pricing, drop-in alternatives within the SAM C21 family, and practical design notes not found in the standalone datasheet.

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ATSAMC21E18A-AUT - 48MHz Cortex-M0+ MCU 256KB Flash TQFP-32 | Microchip
ATSAMC21E18A-AUT

ATSAMC21E18A-AUT - 48MHz Cortex-M0+ MCU 256KB Flash TQFP-32 | Microchip

The Microchip Technology ATSAMC21E18A-AUT is a 32-bit ARM Cortex-M0+ microcontroller with CAN-FD support, 256KB of in-system programmable Flash and 48 MHz maximum CPU clock, housed in a 32-pin TQFP (7x7 mm) package. Designed for industrial and commercial applications in electrically noisy environments, it integrates a single-cycle hardware multiplier, a Micro Trace Buffer, a Memory Protection Unit (MPU), and an 8KB independent self-programmable Flash region used as EEPROM emulation. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (typically Flash), working RAM, and a rich set of peripherals (timers, communication controllers, ADCs, GPIO) into one package. MCUs sit beneath microprocessors, embedded processors, and SoCs in the broader taxonomy of computing semiconductors, and above simple logic ICs in capability. The SAM C21 family targets functional-safety (FuSa) and 5V-tolerant designs where the MCU must coexist with industrial bus transceivers, motor-control FET drivers, and 24V sensor rails. Key features of the ATSAMC21E18A-AUT include up to six SERCOM serial-communication modules configurable as USART, I2C, or SPI, a CAN-FD controller for automotive and industrial networking, a 12-bit ADC with up to 16 channels, 5V-tolerant I/O, and an operating voltage range of 2.7V to 5.5V. An on-chip temperature sensor, 32 KB SRAM, and a comprehensive event system for inter-peripheral signaling without CPU intervention enable deterministic real-time response. Architecturally, the device is built around the Cortex-M0+ core, which prioritizes energy efficiency, deterministic interrupt latency, and ease of C-language programming. The MPU allows isolation of trusted and untrusted code regions, while the Micro Trace Buffer delivers lightweight instruction tracing for debug without expensive trace hardware. CAN-FD extends classical CAN payload to 64 bytes and enables bit rates above 1 Mbps on the bus. Typical applications include CAN-FD industrial nodes, building-automation controllers, sensor hubs, low-end motor-control boards, and 5V-tolerant automotive body electronics. The wide 5V tolerance and FuSa documentation simplify compliance for IEC 61508 and ISO 26262-adjacent designs. When designing with this MCU, ensure that your linker script places the EEPROM emulation region inside the dedicated 8KB Flash bank rather than the main 256KB array; otherwise wear-leveling performance degrades. Use the SERCOM mux spreadsheet before PCB layout - SERCOM pin mapping is highly flexible and locking pins early avoids rework.

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ATSAMC21E18A-MUT - 48MHz Cortex-M0+ 256KB MCU | 32-VQFN
ATSAMC21E18A-MUT

ATSAMC21E18A-MUT - 48MHz Cortex-M0+ 256KB MCU | 32-VQFN

The Microchip Technology ATSAMC21E18A-MUT is an ARM Cortex-M0+ based 32-bit microcontroller (MCU) belonging to the SAM C21 family, offered in a 32-pin VQFN (5x5 mm) package with 256 KB of Flash and a 48 MHz CPU core. As part of Microchip's 5-Volt-tolerant SAM C series, the device integrates CAN-FD, a rich SERCOM peripheral set, a 12-bit ADC, and Functional Safety (FuSa) features targeted at industrial and automotive-grade noisy environments. The -MUT suffix indicates Tape & Reel packaging, an industrial 85 °C operating temperature grade, and a 256 KB Flash variant in the 32-VQFN option. A 32-bit microcontroller is a single-chip computer that integrates a processor core, program memory (Flash), data memory (SRAM), and peripherals on one silicon die. The Cortex-M0+ core is the most energy-efficient member of the ARM Cortex-M family, optimized for deterministic real-time response and low active power. The SAM C21 family extends the base M0+ architecture with a 5 V supply rail tolerance and integrated CAN-FD controller, making it a member of the broader MCU -> microcontroller -> embedded processor -> semiconductor hierarchy and well-suited to industrial communication nodes. Key features include 256 KB of Flash, 32 KB of SRAM, up to 48 MHz CPU clock, six SERCOM channels configurable as UART/SPI/I²C, one CAN-FD port, a 12-bit 1 MSPS ADC with up to 20 channels, a 10-bit DAC, and a Peripheral Touch Controller (PTC) supporting capacitive touch. The device operates from 2.7 V to 5.5 V, has a built-in 48 MHz internal oscillator, and integrates a full-speed USB 2.0 interface plus a 32-channel event system. Functional Safety diagnostics include CRC, memory BIST, and watchdog timers. The compact 32-VQFN (5x5) footprint with thermal pad makes it drop-in compatible with other SAM C21 'E' variants. The ATSAMC21E18A uses a Harvard bus architecture with single-cycle 32-bit multiplier, hardware divide, and a Nested Vectored Interrupt Controller (NVIC) with deterministic interrupt latency. Its dual-bank Flash with live update support enables in-field firmware upgrades without service interruption, and the SERCOM modules can be re-mapped to multiple pins, simplifying PCB routing on dense boards. Typical applications include industrial CAN-FD nodes, building automation controllers, sensor hubs, low-cost motor control, and consumer appliances with capacitive touch interfaces. The 5 V tolerance removes the need for level shifters when interfacing to legacy industrial transceivers. When designing with this MCU, plan the SERCOM pinout before PCB layout, allocate the CAN-FD pins to a region with a short symmetric differential trace to the transceiver, and add an external 32.768 kHz crystal if RTC accuracy better than the internal oscillator is required.

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ATSAMC21G15A-AUT - 48MHz Cortex-M0+ MCU 32KB Flash | Microchip
ATSAMC21G15A-AUT

ATSAMC21G15A-AUT - 48MHz Cortex-M0+ MCU 32KB Flash | Microchip

The Microchip ATSAMC21G15A-AUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, featuring 32KB Flash and 4KB SRAM, operating at up to 48MHz, housed in a 48-pin TQFP (7x7mm) package. It supports 5V operation and integrates CAN-FD, a Peripheral Touch Controller (PTC), and advanced analog peripherals including a 12-bit ADC and 10-bit DAC. The device is rated for -40C to +85C automotive temperature range and is Functional Safety (FuSa) capable per IEC 60730 Class B. An ARM Cortex-M0+ microcontroller is a 32-bit RISC processor core designed by Arm for low-power embedded applications, balancing performance, energy efficiency, and code density. Within the broader taxonomy, the Cortex-M0+ belongs to the Cortex-M family (cortex microcontroller family), which itself is part of the Arm architecture family; the M0+ is positioned as the most energy-efficient member. Microcontrollers (MCUs) integrate CPU core, memory, and peripherals on a single IC and serve as the core processing element in billions of embedded devices from IoT nodes to automotive ECUs. The SAM C21 family adds 5V tolerance and CAN-FD on top of the standard M0+ feature set, targeting industrial and automotive environments. Key features of the ATSAMC21G15A-AUT include 32KB Flash, 4KB SRAM, up to 48MHz CPU clock, 5V-tolerant I/O with 1.62V-5.5V supply range, a 12-bit 1Msps ADC with up to 20 channels, a 10-bit 350ksps DAC, six SERCOM (serial communication) interfaces configurable as UART/SPI/I2C, one CAN-FD controller, and a built-in Peripheral Touch Controller. The integrated PTC enables capacitive-touch button, slider, and wheel interfaces without external components. A 16-bit event system, six DMA channels, and a Real-Time Clock round out the on-chip peripheral set. The 48-pin TQFP package provides 38 usable I/O lines, which is generous for the package size. The SAM C21 architecture pairs the Cortex-M0+ core with Microchip's SmartEE peripheral bus and an optimized interrupt controller (NVIC). The 5V-tolerant I/O makes the ATSAMC21G15A-AUT particularly attractive for industrial control designs where 3.3V signals must coexist with legacy 5V sensors and actuators. AEC-Q100 qualification (AUT suffix denotes automotive grade) makes it suitable for non-safety-critical body electronics, HMI, and HVAC modules. The integrated CAN-FD controller supports the higher data rates required by modern automotive networks without requiring an external transceiver logic. Typical applications include industrial sensor interfaces, capacitive-touch HMI panels, automotive body and HVAC control, IoT edge nodes with CAN-FD connectivity, home appliance control boards, and low-cost motor control sub-systems. The 5V tolerance also makes it a direct upgrade path for designs that previously required 8-bit PIC microcontrollers. A typical circuit places the ATSAMC21G15A-AUT as the master controller on a 3.3V rail, with a CAN-FD transceiver (such as the MCP2562FD) on the bus side and a 12-bit ADC front-end for analog sensor inputs. When designing with this device, plan the supply rail carefully - the SAM C21 supports both 3.3V and 5V operation, but the ADC reference voltage and VDDCORE must follow specific sequencing rules. Decoupling requires a 100nF ceramic on each VDD pin plus a bulk capacitor, and unused I/O pins should be configured as outputs low to minimize leakage. This page synthesizes distributor pricing, drop-in alternatives within the same TQFP-48 footprint, and practical design notes not found in the manufacturer datasheet.

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ATSAMC21G15A-MNT - 48MHz ARM Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMC21G15A-MNT

ATSAMC21G15A-MNT - 48MHz ARM Cortex-M0+ MCU, 32KB Flash | Microchip

The Microchip ATSAMC21G15A-MNT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, operating at up to 48 MHz with 32 KB of Flash and 4 KB of SRAM in a 48-pin QFN (7x7 mm) package. It is designed for functional safety (FuSa) applications and supports 5V tolerant I/O, making it ideal for mixed-signal industrial and automotive environments. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals. The ARM Cortex-M0+ is the smallest and most energy-efficient ARM core, targeting deterministic embedded control with Thumb-2 instruction set compatibility. The SAM C21 series specifically adds 5V I/O tolerance and CAN-FD connectivity, placing this part between consumer-grade Cortex-M0 MCUs and more expensive Cortex-M4 devices in Microchip's portfolio. Key features include 32 KB Flash, 4 KB SRAM, 1 KB data EEPROM, a 48 MHz core with single-cycle multiplier, and integrated peripherals such as CAN-FD, SERCOM (configurable serial), 12-bit ADC, 10-bit DAC, and PTC (Peripheral Touch Controller) for capacitive touch sensing. The 48-QFN package exposes up to 38 GPIO pins and supports industrial-grade temperature operation from -40C to +105C. The architecture combines a low-power Cortex-M0+ core with a 12-channel event system for inter-peripheral signaling without CPU intervention. The device supports Sleep, Standby, and Backup modes, with typical active current of approximately 7 mA at 48 MHz and standby current below 1 uA with RTC retention. The CAN-FD controller supports ISO 11898-1:2015 frames at up to 8 Mbps, enabling modern automotive network integration. Typical applications include CAN-FD node controllers in industrial automation, BLDC motor control FOC drives, HVAC climate control, smart metering, capacitive touch user interfaces, and small home appliances. Functional safety features such as windowed watchdog, CRC, and memory protection unit support IEC 60730 Class B certification for white goods and similar consumer safety-critical systems. When designing with this device, ensure the 5V supply rail is decoupled with both bulk and high-frequency ceramic capacitors placed close to the VDD pins. The QFN thermal pad must be soldered to a properly sized copper pour for mechanical reliability and thermal dissipation; otherwise, the package can crack under PCB stress during reflow or in-field temperature cycling. This page synthesizes distributor pricing, drop-in alternatives drawn from the same SAM C21 family and competitor Cortex-M0+ parts, and practical design notes not assembled in the manufacturer datasheet alone.

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ATSAMC21G15A-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMC21G15A-MUT

ATSAMC21G15A-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip

The Microchip Technology ATSAMC21G15A-MUT is a 32-bit ARM Cortex-M0+ microcontroller running up to 48 MHz with 32 KB of Flash and 4 KB of SRAM, housed in a 48-pin QFN (7x7 mm) package. It is part of the SAM C21 functional-safety family and integrates CAN-FD, a full-speed USB, a 12-bit ADC, a 10-bit DAC, and a Peripheral Touch Controller (PTC) for capacitive-touch user interfaces. The part operates from a 2.7 V to 5.5 V supply, making it well suited to 5 V industrial rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripherals such as timers, communication controllers, and analog blocks. The Cortex-M0+ is ARM's smallest and most energy-efficient application processor core, designed for deterministic real-time embedded workloads. Within the SAM family taxonomy, the ATSAMC21G15A sits at the entry of the Cortex-M0+ lineup with CAN-FD connectivity, bridging simple 8/16-bit MCU designs and higher-end Cortex-M4 designs. Key features include 32 KB Flash, 4 KB SRAM, a 12-channel 12-bit 1 Msps ADC, two Analog Comparators, a 10-bit DAC, six SERCOM (configurable serial communication) modules, one CAN-FD controller, one USB Full-Speed controller, and a 32-pin Peripheral Touch Controller. The device also supports 5 V I/O on most pins, which simplifies interfacing to legacy 5 V logic and analog front-ends without level shifters. Architecturally, the ATSAMC21G15A uses Microchip's SAM C21 platform with an event system, a Direct Memory Access (DMA) controller, and a SleepWalking peripheral power-gating scheme. These features reduce active and standby current, enabling battery-friendly designs. The integrated PTC supports up to 32 self-capacitance or mutual-capacitance touch channels for buttons, sliders, and proximity sensors. Typical applications include industrial CAN-FD nodes, automotive body and HVAC control modules, 5 V sensor hubs, USB-CDC/HID peripherals, capacitive-touch human-machine interfaces (HMI), and small home appliances. The 5 V tolerance and CAN-FD support also make it a strong fit for 24 V industrial automation backplanes where 5 V tolerance reduces external protection. When designing with this device, plan a 32 kHz external crystal or 32.768 kHz internal ultra-low-power oscillator for RTC accuracy, and place the decoupling network (100 nF + 4.7 uF bulk) within 3 mm of the VDD pins. For CAN-FD, terminate the bus with 120 ohm at both ends and use a CAN-FD transceiver such as the MCP2562FD. This page synthesizes distributor pricing, drop-in SAM C21 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMC21G16A-AUT - 48MHz Cortex-M0+ MCU, 64KB Flash, 48-TQFP | Microchip
ATSAMC21G16A-AUT

ATSAMC21G16A-AUT - 48MHz Cortex-M0+ MCU, 64KB Flash, 48-TQFP | Microchip

The Microchip Technology ATSAMC21G16A-AUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, featuring 64KB of Flash memory and operating at up to 48MHz, housed in a 48-pin TQFP (7x7 mm) package. Designed for Functional Safety (FuSa) capable applications, this AEC-Q100 Grade 1 qualified device operates across an extended temperature range of -40C to +85C and supports a wide supply voltage range of 2.7V to 5.5V. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of programmable peripherals. The ARM Cortex-M0+ is the smallest and most energy-efficient core in the Cortex-M family, optimized for cost-sensitive embedded applications that still require deterministic real-time response. Microcontrollers form a hierarchy that includes microcontrollers -> embedded processors -> semiconductors, with the SAM C21 specifically targeting industrial and commercial systems exposed to electrically noisy environments through its 5V-tolerant I/O and integrated CAN-FD support. Key features include 64KB of embedded Flash for program storage and 8KB of SRAM for data, six SERCOM (Serial Communication Interface) modules configurable as USART, I2C, or SPI, a full-speed USB 2.0 interface, a CAN-FD controller, up to six timer/counter channels, a 12-bit ADC with up to 16 channels, and a 10-bit DAC. Functional Safety features include a dedicated Cortex-M0+ lockstep core, windowed watchdog timer, ECC on memory, brown-out detect, and a fail-safe clock monitor. The ATSAMC21G16A-AUT uses Microchip's proprietary low-power process technology and supports Sleep, Standby, and Backup sleep modes to meet stringent power budgets in always-on industrial sensor nodes. The Cortex-M0+ core delivers 0.93 DMIPS/MHz and is fully binary-compatible with the larger Cortex-M3/M4 families, allowing easy code portability. Typical applications include industrial CAN-FD node controllers, automotive body and HVAC modules, USB-CDC bridge devices, sensor hubs with analog front-ends, and appliance motor control. The wide 5V tolerance lets the device interface directly with industrial 24V-sourced signals through external resistor dividers without level translators, simplifying board design. When designing with this MCU, allocate sufficient bypass capacitance (100nF X7R plus 4.7uF bulk) adjacent to each supply pin to meet the manufacturer's noise-immunity targets. Plan pin-out sharing between SERCOM, ADC, and DAC carefully; the datasheet pin-multiplexing table should be cross-checked with your schematic capture before layout commitment. Flash is rated to 10k write/erase cycles minimum per the SAM C21 datasheet.

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ATSAMC21G17A-AUT - 48MHz ARM Cortex-M0+ MCU, 128KB Flash | Microchip
ATSAMC21G17A-AUT

ATSAMC21G17A-AUT - 48MHz ARM Cortex-M0+ MCU, 128KB Flash | Microchip

The Microchip Technology ATSAMC21G17A-AUT is a 32-bit ARM Cortex-M0+ microcontroller running up to 48 MHz, integrating 128 KB of in-system self-programmable Flash, 16 KB SRAM, and a 4 KB independent Flash block for EEPROM emulation, all housed in a 48-pin TQFP (7x7 mm) package with AEC-Q100 Grade 1 qualification. An ARM Cortex-M0+ microcontroller is a 32-bit RISC processor core designed for low-power, deterministic embedded control. The Cortex-M0+ sits at the entry level of the ARM-M family, pairing a 2-stage pipeline, single-cycle hardware multiplier, and Micro Trace Buffer with an optional Memory Protection Unit. The SAM C21 series extends this architecture into the 5 V-tolerant industrial and automotive domain, where noise immunity and CAN-FD connectivity are required. It belongs to the broader hierarchy: microcontroller -> embedded MCU -> semiconductor -> integrated circuit. Key features of the ATSAMC21G17A-AUT include 5 V supply tolerance, integrated CAN-FD controller, up to six SERCOM serial interfaces configurable as UART/SPI/I2C, a 12-bit ADC with up to 16 channels, 10-bit DAC, and a Peripheral Touch Controller (PTC) supporting capacitive touch sensing. The device operates across -40 C to +85 C and is AEC-Q100 Grade 1 qualified, making it suitable for harsh-environment and automotive designs. At the architectural level, the SAM C21 implements a Harvard bus with separate AHB and APB domains, hardware-accelerated AES, and a low-power SleepWalking peripheral event system. The CAN-FD peripheral supports ISO 11898-1:2015 frames at up to 1 Mbit/s, distinguishing this family from the otherwise similar SAM D20/D21 Cortex-M0+ devices that lack CAN-FD. The 5 V-tolerant GPIO eliminates level shifters in 5 V sensor interfaces. Typical applications for the ATSAMC21G17A-AUT include automotive body and chassis ECUs, industrial sensor nodes with CAN-FD backbones, HVAC controllers, BLDC motor drivers, capacitive touch HMI, and battery management units. The combination of 5 V tolerance and CAN-FD uniquely positions this MCU for in-vehicle networking and Industry 4.0 sensor hubs. When designing with this MCU, place a 1 uF and 100 nF decoupling pair close to each VDD pin, route the 48 MHz crystal traces symmetrically with a grounded guard ring, and ensure the CAN-FD bus is terminated with 120 ohm at each end. The 48-pin TQFP is drop-in compatible with the SAM D20/D21 48-pin TQFP, simplifying upgrades for designs that need CAN-FD. This page synthesizes Microchip datasheet parameters, distributor pricing as of 2026-09-21, and drop-in alternatives across the SAM C20/C21 and SAM D21 families not found in a single distributor listing.

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ATSAMC21G17A-MUT - 48MHz Cortex-M0+ MCU 128KB Flash | Microchip
ATSAMC21G17A-MUT

ATSAMC21G17A-MUT - 48MHz Cortex-M0+ MCU 128KB Flash | Microchip

The Microchip Technology ATSAMC21G17A-MUT is a 32-bit ARM Cortex-M0+ microcontroller running up to 48 MHz with 128 KB of in-system self-programmable Flash and 16 KB SRAM, housed in a 48-pin QFN (7x7 mm) package. It operates from 2.7V to 5.5V, targeting 5V-tolerant industrial and commercial designs in electrically noisy environments. The device integrates advanced peripherals including a 10-bit 350 ksps DAC, four analog comparators with window compare, an integrated temperature sensor, and a Peripheral Touch Controller supporting up to 256 channels of capacitive touch and proximity sensing. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and integrated peripherals. The Cortex-M0+ is ARM's smallest and most energy-efficient application processor core, designed for deterministic embedded control in cost-sensitive applications. Within the broader hierarchy, an MCU sits below microprocessors (MPUs) in integration level and is part of the embedded computing category, alongside DSPs and application processors. The SAM C21 family specifically targets 5V-tolerant industrial CAN-FD applications where higher-voltage signal swings and robust communication are required. Key features of the ATSAMC21G17A include single-cycle hardware multiplication, a Micro Trace Buffer for lightweight instruction tracing, a Memory Protection Unit (MPU), and 4 KB of independent self-programmable Flash dedicated to EEPROM emulation. The device supports up to 38 programmable I/O pins and is drop-in compatible with select SAM D20 and SAM D21 devices, simplifying migration paths for designers upgrading from earlier Microchip Cortex-M0+ parts. The ATSAMC21G17A-MUT belongs to the Functional Safety (FuSa) variant of the SAM C21 family, with documentation packages supporting IEC 60730 Class B safety requirements for household appliances and similar regulated applications. The SERCOM (Serial Communication) peripheral provides configurable I2C, SPI, and UART interfaces, while the CAN-FD controller supports modern automotive and industrial network protocols at data rates up to 8 Mbps. Typical applications include industrial CAN-FD sensor nodes, capacitive touch user interfaces for appliances, motor control subsystems, building automation controllers, and 5V industrial communication bridges. The combination of 5V tolerance, CAN-FD, and integrated analog makes the part particularly attractive for factory automation, HVAC controls, and white-goods designs where robustness and longevity matter most. When designing with this MCU, ensure decoupling follows Microchip's reference design with one 100 nF ceramic capacitor per VDD pin plus a bulk 4.7 uF capacitor. The PTC requires careful PCB layout with balanced sensor traces; refer to application note AT11481 for touch sensor design guidelines. The internal 48 MHz oscillator is factory-trimmed but a 32.768 kHz crystal is recommended for RTC accuracy. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for the ATSAMC21G17A-MUT that complement the manufacturer datasheet for engineers selecting a 5V Cortex-M0+ MCU.

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ATSAMC21G18A-ANT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMC21G18A-ANT

ATSAMC21G18A-ANT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip

The Microchip Technology ATSAMC21G18A-ANT is a 32-bit ARM Cortex-M0+ microcontroller running at up to 48 MHz with 256 KB of in-system self-programmable Flash and 32 KB SRAM, housed in a 48-pin TQFP (7x7 mm) package. The device integrates a Peripheral Touch Controller (PTC), a 12-bit ADC, a 10-bit DAC, up to six SERCOM serial communication peripherals, and a CAN-FD controller, making it a single-chip solution for industrial and automotive-grade human-machine interface and motor-control subsystems. What is a Cortex-M0+ microcontroller? A Cortex-M0+ is an ARM Holdings 32-bit processor core designed for energy-efficient embedded applications; in the SAM C21 family it is paired with a 5 V-tolerant I/O ring and Functional Safety (FuSa) features that let the part operate directly from industrial 24 V rails after a pre-regulator. The ATSAMC21G18A-ANT belongs to the SAM C21 family of 5 V Cortex-M0+ devices designed for industrial and commercial applications in noisy environments, sitting within Microchip's broader MCU hierarchy: Cortex-M0+ -> ARM Cortex-M -> 32-bit MCU -> Embedded Microcontroller -> Semiconductor. Key features include an integrated CAN-FD controller for automotive network bridging, six SERCOM modules that can each be configured as I2C, SPI, or UART, a 12-bit differential ADC with up to 1 Msps, and a 16-bit PWM timer suited for advanced motor control. The Peripheral Touch Controller supports capacitive button, slider, and wheel sensing without an external touch IC. Technically, the part combines a single-cycle hardware multiplier with an MPU, a Micro Trace Buffer for lightweight instruction tracing, and 8 KB of independent self-programmable Flash reserved for EEPROM emulation, which preserves the main array for firmware updates. The 5 V-tolerant I/O ring simplifies interface to legacy 5 V sensors and actuators common on factory floors. Typical applications include industrial HMI panels, BLDC motor controllers, building automation sensors, automotive body and lighting controllers, and CAN-FD networked sensor nodes. Each application benefits from the combination of robust 5 V I/O, integrated touch, and CAN-FD. When designing, ensure the 48-pin TQFP land pattern is used and provide bulk decoupling of 100 nF plus 4.7 µF near the VDD pins; the CAN-FD peripheral requires a certified transceiver such as the MCP2562FD for ISO 11898-1 compliance. This page synthesizes distributor pricing, package-compatible alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone.

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ATSAMC21G18A-AU - 48MHz Cortex-M0+ MCU, 256KB Flash, 5V | Microchip
ATSAMC21G18A-AU

ATSAMC21G18A-AU - 48MHz Cortex-M0+ MCU, 256KB Flash, 5V | Microchip

The Microchip Technology ATSAMC21G18A-AU is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, operating up to 48 MHz with 256 KB of Flash and 32 KB of SRAM in a 48-pin TQFP (7x7 mm) package. It is specified for 5V supply tolerance, integrates CAN-FD, SERCOM, and the Peripheral Touch Controller (PTC), and is AEC-Q100 Grade 1 qualified for automotive and harsh industrial environments. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals on a single die. Within the broader taxonomy, an MCU belongs to microcontrollers -> embedded processors -> integrated circuits. The Cortex-M0+ is an ARMv6-M Thumb/Thumb-2 core optimized for energy efficiency and deterministic interrupt response, targeting deeply embedded applications. The SAM C21 family sits in Microchip's 5V-tolerant, mixed-signal portfolio alongside the 3.3V SAM D20/D21 series, prioritizing noise immunity on factory floors and automotive body/battery-direct rails. Key features of the ATSAMC21G18A-AU include: 256 KB Flash (ECC), 32 KB SRAM, six SERCOM channels configurable as UART/SPI/I2C/LIN, one CAN-FD controller, one 12-bit 1 Msps ADC with up to 16 channels, two 16-bit TC timers, a 24-bit RTC, and the PTC for capacitive touch sensing. The device supports 1.62V-5.5V operation with internal 48 MHz DFLL and a 32 kHz oscillator, plus up to 38 GPIO. The 5V-tolerant I/O is the headline differentiator versus SAM D21. On the architecture side, the ATSAMC21G18A-AU uses a single-cycle 32-bit bus with a tightly-coupled SRAM, deterministic 2-channel DMA (DMAC), and an Event System that lets peripherals trigger each other without CPU intervention. The Event System plus 6 SERCOMs gives designers many concurrent digital interfaces without bus contention. Typical applications include automotive body controllers, HVAC and climate-control touch panels, industrial CAN-FD node endpoints (sensor hubs, motor-control auxiliary logic), smart metering, white-goods human-machine interfaces, and battery-powered IoT edge nodes with LIN or CAN connectivity. The integrated PTC removes the need for an external touch controller, and the CAN-FD peripheral supports modern vehicle networks at 5 Mbit/s. Design trade-off: the 5V-tolerant I/O comes with slightly higher leakage at hot temperatures than the SAM D21; for ultra-low-power battery-only designs (sub-1 uA sleep), the SAM L22 or SAML21 may be a better fit. The 48-pin TQFP is footprint-compatible with several SAM D20/D21 G variants, easing migration between 3.3V and 5V worlds. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMC21G18A-AUT - 256KB Flash 48MHz Cortex-M0+ MCU | Microchip
ATSAMC21G18A-AUT

ATSAMC21G18A-AUT - 256KB Flash 48MHz Cortex-M0+ MCU | Microchip

The Microchip ATSAMC21G18A-AUT is a 5V-tolerant ARM Cortex-M0+ microcontroller from the SAM C21 family, integrating 256KB of in-system self-programmable Flash, 32KB SRAM, and the Functional Safety (FuSa) feature set in a 48-pin TQFP (7x7 mm) package. It runs at up to 48MHz, includes a single-cycle hardware multiplier, Micro Trace Buffer, and Memory Protection Unit (MPU), and adds an 8KB independent self-programmable Flash region for EEPROM emulation. The '-AUT' suffix indicates automotive-grade qualification (AEC-Q100) on the TQFP package with tape-and-reel delivery. What is a Cortex-M0+ microcontroller? An ARM Cortex-M0+ is the smallest and most energy-efficient core in the Cortex-M family, designed for deeply embedded, deterministic 32-bit applications. It belongs to the broader microcontroller (MCU) hierarchy (microcontroller -> embedded processor -> semiconductor IC) and supersedes legacy 8/16-bit architectures by adding a 32-bit datapath, NVIC, and modern toolchain support while retaining ultra-low active and sleep currents. The SAM C21 series targets industrial and commercial designs in electrically noisy environments. Key features of the ATSAMC21G18A-AUT include: SERCOM (Serial Communication Interface) modules that can be independently configured as UART, SPI, or I2C; a CAN-FD controller for high-bandwidth automotive networking; a 12-bit ADC, 10-bit DAC, and analog comparators; PWM timers with complementary outputs and dead-time insertion for motor control; and 5V-tolerant I/O allowing direct interface to legacy 5V peripherals without level shifters. On the architecture side, the device uses the Cortex-M0+ v6M instruction set with a 2-stage pipeline, single-cycle I/O port access, and tightly-coupled SRAM for deterministic interrupt response. The CAN-FD peripheral supports ISO 11898-1:2015 frames with up to 64-byte payloads, and the SERCOM engine allows flexible pin mapping via the I/O multiplexing matrix. Typical applications include industrial automation (sensor hubs, PLC I/O modules), automotive body and chassis electronics (using CAN-FD), building automation (HVAC, lighting controllers), home appliances, and low-cost motor control such as small BLDC or stepper drivers. AEC-Q100 grade 1 qualification also enables under-hood and dashboard deployment. When designing with this MCU, plan the I/O multiplexing early because SERCOM and timer functions share mapping; Microchip's MPLAB Harmony Configurator (MCC) pin manager simplifies assignment. The 5V-tolerant pins tolerate but do not drive 5V outputs, so external level shifting is required when communicating with true 5V peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMC21J15A-ANT - 5V Cortex-M0+ MCU 32KB Flash 64-TQFP
ATSAMC21J15A-ANT

ATSAMC21J15A-ANT - 5V Cortex-M0+ MCU 32KB Flash 64-TQFP

The Microchip Technology ATSAMC21J15A-ANT is a 5-Volt 32-bit ARM Cortex-M0+ microcontroller with integrated CAN-FD, packaged in a 64-pin TQFP (10x10 mm). It integrates 32 KB of in-system self-programmable Flash, 4 KB SRAM, and runs at up to 48 MHz with single-cycle hardware multiplier, Micro Trace Buffer, and Memory Protection Unit (MPU). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The SAM C21 family uses the Cortex-M0+ core, the smallest and most energy-efficient ARM core for embedded use. Microcontrollers sit at the lowest tier of the processor hierarchy (microcontroller -> embedded processor -> SoC -> computer system), and the SAM C21 family specifically targets industrial and commercial systems in electrically noisy environments where 5V tolerance and CAN-FD connectivity are required. Key features include 10-bit 350 ksps DAC, four analog comparators with window-compare mode, integrated temperature sensor, Peripheral Touch Controller (PTC) supporting up to 256 channels of capacitive touch sensing, and SERCOM-configurable serial interfaces. The device supports up to 52 programmable I/O pins and operates from 2.7V to 5.5V. The ATSAMC21J15A-ANT uses a 5V-tolerant CMOS process with on-chip voltage regulation, allowing direct interfacing with 5V logic without level shifters. Its CAN-FD peripheral supports ISO 11898-1:2015 data rates up to 8 Mbps for automotive and industrial networking. The Cortex-M0+ core delivers 0.93 DMIPS/MHz with Thumb-2 instruction set compatibility and a single-cycle 32x32 hardware multiplier. Typical applications include industrial sensor hubs, CAN-FD node controllers, building automation gateways, motor control auxiliary logic, and human-machine interface (HMI) panels. The wide operating voltage and AEC-Q100-style robustness also suit commercial vehicle and white-goods applications. When designing with this MCU, reserve the SERCOM channels carefully because each channel can be mapped to multiple pin sets but only one peripheral function at a time. Decouple VDDIN and VDDCORE with 100 nF ceramic capacitors placed within 3 mm of the respective pins. This page synthesizes distributor pricing, drop-in package-compatible alternatives within the SAM C20/C21 family, and practical design notes that complement the manufacturer datasheet.

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ATSAMC21J15A-AUT - 48MHz Cortex-M0+ MCU 32KB Flash | Microchip
ATSAMC21J15A-AUT

ATSAMC21J15A-AUT - 48MHz Cortex-M0+ MCU 32KB Flash | Microchip

The Microchip ATSAMC21J15A-AUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, delivering up to 48 MHz CPU performance with 32 KB of Flash and 4 KB of SRAM in a 64-pin TQFP (10x10 mm) package with exposed thermal pad. The AUT suffix indicates industrial temperature grade (-40C to +85C), tape-and-reel packaging, and Functional Safety (FuSa) capability. The SAM C21 series is engineered for industrial and commercial applications in electrically noisy environments, integrating robust peripherals including six SERCOM configurable serial interfaces, CAN-FD, advanced motor-control timers, and a 12-bit 1 Msps ADC. What is a Cortex-M0+ microcontroller? An ARM Cortex-M0+ microcontroller is a 32-bit reduced instruction set computer (RISC) core designed for ultra-low-power embedded applications. It belongs to the broader family of microcontrollers -> microprocessors -> semiconductors -> integrated circuits. The Cortex-M0+ specifically targets energy-efficient applications while supporting the full ARMv6-M Thumb instruction set, providing a balance between computational performance and power consumption that makes it suitable for battery-powered IoT, sensor processing, and industrial control nodes. Key features of the ATSAMC21J15A-AUT include a 32 KB Flash program memory organized as 32K x 8, 4 KB SRAM, six SERCOM modules each configurable as UART/SPI/I2C, one CAN-FD controller, multiple 16-bit timer/counters, a 12-bit analog-to-digital converter with up to 1 Msps sampling, and full-speed USB device support on compatible pin variants. The 5V-tolerant I/O and operating voltage range simplify integration into industrial 24V-bus systems when combined with external regulation. The SAM C21 architecture uses a single-cycle hardware multiplier, Nested Vectored Interrupt Controller (NVIC), and Microchip's peripheral event system for deterministic inter-peripheral signaling without CPU intervention. Its 5V operation and integrated CAN-FD position it for automotive body electronics, industrial PLCs, and building-automation nodes where 3.3V parts would require additional level shifters. Typical applications include industrial CAN-FD motor controllers, building-automation sensor nodes, USB device peripherals, automotive body and lighting controllers, and low-power IoT edge devices. The wide operating voltage (2.7V to 5.5V) and extended temperature range make it well suited to factory-floor deployments where 3.3V-only parts would otherwise need redundant power conditioning. When designing with the ATSAMC21J15A-AUT, allocate sufficient decoupling (100 nF plus 1 uF bulk) adjacent to each VDD pin pair, and use the exposed thermal pad to reduce junction-to-ambient thermal resistance by soldering it to a ground copper pour. Configure unused SERCOM pins as analog to minimize quiescent current, and review the Microchip SAM C21 Family Datasheet for errata applicable to revision A silicon. This page synthesizes distributor pricing from DigiKey/Mouser/LCSC, drop-in compatible alternatives from Microchip's SAM family portfolio, and practical design notes drawn from the manufacturer datasheet typical application circuits - content not consolidated on any single distributor product page.

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ATSAMC21J15A-MNT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMC21J15A-MNT

ATSAMC21J15A-MNT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip

The Microchip Technology ATSAMC21J15A-MNT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, operating at up to 48 MHz with 32 KB of Flash and 4 KB of SRAM, housed in a 64-pin QFN (9x9 mm) package. It is qualified for industrial-grade -40C to +105C operation and supports 5V-tolerant I/O, making it well suited for industrial and commercial applications in electrically noisy environments. The device integrates Functional Safety (FuSa) features required by IEC 61508 SIL 2 systems. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The Cortex-M0+ is ARM's smallest and most energy-efficient 32-bit core, designed for deterministic real-time control. Within the broader taxonomy, the Cortex-M0+ sits below Cortex-M3/M4/M7 in performance, and the SAM C21 family targets 5V industrial and automotive-grade CAN nodes. The 'SAM C' series is Microchip's specialty 5V line for noisy-environment applications. Key features include up to six SERCOM (Serial Communication Interface) modules that can each be configured as UART, SPI, or I2C, plus a CAN-FD peripheral for automotive and industrial networking. The TC (Timer/Counter) block provides PWM and capture channels for motor control and power conversion, while the Event System enables hardware-triggered inter-peripheral signalling without CPU intervention. Analog peripherals include a 12-bit 1 MSPS ADC, 10-bit DAC, and analog comparators. The 64-QFN 9x9 mm package has an exposed pad for improved thermal dissipation. Typical applications are industrial sensor nodes, building automation controllers, CAN-connected HVAC actuators, low-end motor-control BLDC drivers, battery management slave modules, and 5V-tolerant logic-replacement designs. The wide 2.7V-5.5V supply range also supports battery-powered devices operating from a single Li-Ion cell. When designing with this part, place decoupling capacitors (100 nF + 1 uF) within 2 mm of every VDD pin and stitch the exposed pad with at least 8 thermal vias to the inner ground plane. Use the OpenOCD or Atmel-ICE debugger and the MPLAB X IDE toolchain to access the SERCOM remap and Event System configuration.

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ATSAMC21J15A-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMC21J15A-MUT

ATSAMC21J15A-MUT - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip

The Microchip Technology ATSAMC21J15A-MUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, featuring Functional Safety (FuSa) support, 32 KB of Flash, and a 48 MHz CPU clock speed, all housed in a 64-pin 9x9 mm QFN (HVQCCN) package. It is rated for 5V operation with an 85°C industrial temperature grade and ships on Tape & Reel. Key features include 32 KB of Flash memory, 4 KB of SRAM, a 48 MHz ARM Cortex-M0+ core, and integrated CAN-FD support that makes it suited for automotive and industrial network communication. The device also integrates up to six SERCOM serial communication modules, a 12-bit ADC, multiple timers, and on-chip touch support via the Peripheral Touch Controller (PTC). It is engineered for noisy industrial environments where robust peripherals and 5V tolerance are required. The ATSAMC21J15A-MUT uses a Harvard-bus architecture on the Cortex-M0+ core with a single-cycle multiplier and hardware divider, delivering 0.93 DMIPS/MHz efficiency. The 64-pin QFN variant exposes a wide peripheral set including USB, CAN-FD, SERCOM, and 12-bit ADC, enabling compact board layouts for cost-sensitive embedded designs without sacrificing I/O flexibility. Typical applications include industrial automation, automotive body and chassis networks (CAN-FD), building automation, sensor hubs, smart lighting controllers, and low-cost white goods. Its 5V tolerance and FuSa-capable architecture also make it suitable for safety-related industrial sensors and motor control loops. When designing with the ATSAMC21J15A-MUT, provide clean 5V and 3.3V rails with adequate bulk decoupling, route the SWD signals short and direct, and refer to Microchip's SAM C21 Family Datasheet for full pin-mux and peripheral allocation. For functional safety designs, follow the SAM C21 FuSa manual and validate firmware against the device errata before release.

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ATSAMC21J16A-ANT - 48MHz Cortex-M0+ 64KB Flash 5V MCU | Microchip
ATSAMC21J16A-ANT

ATSAMC21J16A-ANT - 48MHz Cortex-M0+ 64KB Flash 5V MCU | Microchip

The Microchip Technology ATSAMC21J16A-ANT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, running at up to 48 MHz with 64 KB of Flash and 8 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package. It is designed for industrial and commercial applications in electrically noisy environments, featuring 5V-tolerant I/O, a CAN-FD controller, and Microchip's Functional Safety (FuSa) support. The device operates from a 2.7V to 5.5V supply and supports industrial temperature grades up to +105 °C. A 32-bit microcontroller (MCU) is a programmable semiconductor device that integrates a CPU core, memory, and peripheral interfaces on a single die. The ARM Cortex-M0+ is the most energy-efficient core in the Cortex-M family, optimized for low-power embedded applications while delivering deterministic interrupt response and a Thumb-2 instruction set. Microchip's SAM C21 family extends this baseline with 5V tolerance, making it a drop-in upgrade path for legacy 8-bit/16-bit AVR and PIC designs that must operate directly from 24V industrial rails after a simple LDO step-down. Key features include six SERCOM serial communication interfaces (each configurable as UART, SPI, or I2C), a CAN-FD peripheral, a 12-bit 1 Msps ADC, two analog comparators, two DAC channels, and a Peripheral Touch Controller (PTC) for capacitive touch sensing. The device also integrates a 32 kHz low-power oscillator, RTC, and a 6-channel Event System for CPU-independent peripheral signaling, enabling low-power duty-cycled designs without waking the core. Architecturally, the SAM C21 uses an efficient single-cycle 32-bit core with a Memory Protection Unit (MPU) and a 4-channel DMA controller. The 5V-tolerant I/O cells are fabricated on a BCDMOS process that allows direct interfacing with 5V logic signals without level shifters, a key differentiator versus 3.3V-only Cortex-M0+ competitors like the SAMD20 family. Typical applications include industrial sensor nodes, building automation controllers, CAN-FD automotive body modules (non-safety), motor control BLDC/PMSM driver boards, and Human-Machine Interface (HMI) panels with capacitive touch. Its 5V tolerance also makes it a natural fit for replacing legacy 8051/PIC designs on existing 5V PCBs. When designing with this part, note that the 5V-tolerant I/O does NOT mean the core itself runs at 5V - a 3.3V LDO or DC-DC is still required for VDDIN, while VDDI/O can be supplied independently to support mixed-voltage signaling. Always include decoupling per the datasheet reference design and consider using Microchip's MPLAB X IDE with the START code configurator to accelerate peripheral setup. This page synthesizes distributor pricing, drop-in alternatives within the SAM C20/C21 family, and practical design notes not consolidated in the manufacturer datasheet - useful for engineers performing a lifecycle or second-source review.

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ATSAMC21J17A-MNT - 48MHz Cortex-M0+ MCU 128KB Flash | Microchip
ATSAMC21J17A-MNT

ATSAMC21J17A-MNT - 48MHz Cortex-M0+ MCU 128KB Flash | Microchip

The Microchip Technology ATSAMC21J17A-MNT is an ARM Cortex-M0+ 32-bit microcontroller running up to 48 MHz, integrating 128 KB of in-system self-programmable Flash, 16 KB SRAM, and a 4 KB independent Flash block for EEPROM emulation, housed in a 64-pin QFN (9x9 mm) package with extended 105°C temperature rating. It belongs to the SAM C21 family, designed for 5 V operation in noisy industrial environments with CAN-FD connectivity. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and SRAM), and programmable peripherals (ADC, timers, communication interfaces) into one package. It sits within the system hierarchy as: microcontroller -> embedded processor -> semiconductor device. The Cortex-M0+ core used here is the most energy-efficient ARM core for 32-bit embedded designs, balancing deterministic interrupt response with low power consumption. Key features of the ATSAMC21J17A-MNT include a 48 MHz ARM Cortex-M0+ core with single-cycle hardware multiplier, a Memory Protection Unit (MPU), Micro Trace Buffer for lightweight instruction tracing, and Functional Safety (FuSa) support. The device integrates a CAN-FD controller, multiple SERCOM serial communication modules, a 12-bit ADC, DAC, and the Peripheral Touch Controller (PTC) for capacitive touch sensing without external components. The device operates from 2.7 V to 5.5 V, suiting both 3.3 V and 5 V industrial rails, and provides up to 84 programmable I/O pins across the 64-pin QFN package. The 5 V tolerance on digital I/O allows direct interfacing with legacy 5 V logic without level shifters, simplifying industrial designs. Typical applications include industrial CAN-FD nodes, building automation controllers, HVAC touch-panel interfaces, sensor hubs, and motor-control auxiliary MCUs. The AEC-Q100 Grade 1 qualified variant (ATSAMC21J17A-MUT) supports automotive environments from -40°C to 125°C. When designing with the ATSAMC21J17A-MNT, allocate the 4 KB EEPROM-emulation Flash for non-volatile parameter storage to preserve the main 128 KB Flash for application code. Use the SERCOM modules flexibly configured as UART/SPI/I2C to match your peripheral mix. This page synthesizes distributor pricing, AEC-Q100 automotive variants, and practical peripheral-mapping design notes not consolidated in the Microchip datasheet alone, helping engineers select the right SAM C21 variant for their industrial or commercial CAN-FD application.

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ATSAMC21J18A-ANT - 32-bit ARM Cortex-M0+ MCU 48MHz CAN-FD | Microchip
ATSAMC21J18A-ANT

ATSAMC21J18A-ANT - 32-bit ARM Cortex-M0+ MCU 48MHz CAN-FD | Microchip

The Microchip ATSAMC21J18A-ANT is a 32-bit ARM Cortex-M0+ microcontroller running up to 48 MHz with 256 KB of in-system self-programmable Flash and 32 KB SRAM, housed in a 64-pin TQFP (10x10 mm) package. It belongs to the SAM C21 family of 5-Volt Functional Safety (FuSa) microcontrollers designed for industrial and commercial applications in electrically noisy environments, and includes an 8 KB independent Flash block dedicated to EEPROM emulation plus a Memory Protection Unit (MPU) and Micro Trace Buffer. What is an ARM Cortex-M0+ microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals. The Cortex-M0+ is ARM's smallest and most energy-efficient 32-bit core, optimized for deterministic interrupt response and low active power. The SAM C21 series extends that core with 5V-tolerant I/O, hardware CAN-FD, and advanced analog, positioning it as a 5V-rail cousin of the lower-voltage SAM D20/D21 families. Within the broader product taxonomy, the ATSAMC21J18A-ANT falls under MCU -> embedded microcontroller -> ARM Cortex-M -> power-management-aware industrial controller. Key features include a single-cycle hardware multiplier, a Peripheral Touch Controller (PTC), six SERCOM serial-communication modules, a full-speed USB 2.0 device interface, a 12-bit ADC with up to 16 channels, two analog comparators, and a CAN-FD controller. The 5V supply tolerance enables direct connection to 5V sensors, relay drivers and industrial buses without level shifters. Technically, the device implements the Cortex-M0+ core with a 2-stage pipeline, NVIC with 32 interrupts, and an optional Micro Trace Buffer for lightweight instruction tracing via the SWD debug port. The 5V-tolerant I/Os and the integrated brown-out detector (BOD) plus a separate VDDCORE LDO regulator allow the same part to operate from a single 5V rail or from regulated 3.3V/1.8V cores with 5V I/O. Internal flash endurance is rated for 25 k write cycles, with the 8 KB EEPROM-emulation block extending endurance through wear-leveling firmware. Typical applications include industrial CAN-FD sensor nodes, 5V motor-control front-ends, building-automation controllers, automotive body and accessory modules (in non-AEC-Q100 grades), and USB-CDC/HID human-interface peripherals such as touch keypads or industrial HMIs. The combination of 5V I/O, CAN-FD and 256 KB Flash is the typical sweet spot for IIoT edge nodes operating on 24V backplanes. Designers should note that the -ANT suffix denotes Tape & Reel packaging and the standard (non-AUT non-MNT) temperature grade of -40C to +105C. The CAN-FD peripheral supports ISO 11898-1:2015 and is fully backward-compatible with classic CAN 2.0B at bit rates up to 1 Mbit/s. When migrating to the smaller C20 or larger C21N variants, peripheral mapping and pinout remain consistent across the family. This page synthesizes distributor pricing, drop-in same-family alternates (ATSAMC21J17A, ATSAMC21J16A), pin-compatible SAM C20 devices, and practical firmware-level design notes not collated in any single Microchip datasheet chapter.

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ATSAMC21J18A-MNT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMC21J18A-MNT

ATSAMC21J18A-MNT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip

The Microchip ATSAMC21J18A-MNT is a 32-bit ARM Cortex-M0+ microcontroller running at up to 48 MHz, with 256 KB of in-system programmable Flash, 32 KB SRAM, and an additional 8 KB Flash for EEPROM emulation, housed in a 64-pin 9x9 mm QFN package. The "MNT" suffix denotes a Grade -40C to +105C industrial-temperature tape-and-reel variant, qualified for harsh-environment use in industrial, automotive, and white-goods applications. What is a Cortex-M0+ microcontroller? The Cortex-M0+ is ARM's smallest, most energy-efficient 32-bit processor core, designed to bring 32-bit performance to deeply embedded cost- and power-sensitive applications previously served by 8-bit MCUs. The SAM C21 family extends this core with 5V-tolerant I/O, CAN-FD, and built-in Functional Safety (FuSa) support, positioning it between general-purpose Cortex-M0+ devices and higher-end Cortex-M4 parts in Microchip's portfolio. Key differentiating features include a Peripheral Touch Controller (PTC) supporting capacitive touch sensing, a 6-channel Direct Memory Access (DMAC) controller, a Memory Protection Unit (MPU), a Micro Trace Buffer, an Event System for inter-peripheral signalling without CPU involvement, and an integrated CAN-FD controller that meets the latest automotive bus-bandwidth requirements. Six SERCOM modules (each configurable as USART, SPI, or I2C) provide flexible serial connectivity, and a 12-bit, 1 Msps ADC with up to 20 channels supports analog sensor interfaces. Typical applications include industrial sensor hubs, BLDC and stepper motor control, capacitive touch key panels, CAN-FD automotive body and chassis nodes, HVAC controllers, white-goods user interfaces, and home-automation gateways. The combination of 5V I/O tolerance, integrated CAN-FD, and an industrial temperature grade makes the part particularly attractive for 12V/24V noisy-bus environments where 3.3V-only MCUs require level shifters. When designing with this device, allocate adequate PCB area for thermal dissipation - the 64-QFN package uses an exposed thermal pad that must be soldered to a continuous ground plane. Decouple VDDIN with a 1uF and a 100 nF ceramic pair as close to the pin as practical, and follow Microchip's SAM C21 hardware design checklist for analog and PTC routing.

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ATSAMC21J18A-MUT64 - 48MHz Cortex-M0+ MCU 256KB Flash CAN-FD | Microchip
ATSAMC21J18A-MUT64

ATSAMC21J18A-MUT64 - 48MHz Cortex-M0+ MCU 256KB Flash CAN-FD | Microchip

The Microchip Technology ATSAMC21J18A-MUT64 is a 5V-tolerant, 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family running at up to 48 MHz, with 256 KB of in-system self-programmable Flash, 32 KB SRAM, and 8 KB of independent Flash for EEPROM emulation, all housed in a 64-pin VQFN (9x9 mm) package. It integrates two CAN-FD controllers for robust in-vehicle and industrial networking, a Peripheral Touch Controller (PTC), a 12-bit 1 Msps ADC, multiple SERCOM serial interfaces, and a full Functional Safety (FuSa) feature set including a Memory Protection Unit (MPU) and Micro Trace Buffer. What is a Cortex-M0+ microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM data memory, and a rich set of peripherals (ADCs, timers, communication blocks) into one device. The ARM Cortex-M0+ is an energy-efficient 32-bit core optimized for deterministic real-time embedded control. The SAM C21 family extends that core with 5V I/O tolerance and CAN-FD connectivity, which makes it particularly attractive for industrial and automotive-style noisy environments where lower-voltage MCUs require level shifters. Key features of the ATSAMC21J18A-MUT64 include the 12-bit 1 Msps ADC with up to 20 channels, a 16-bit Sigma-Delta ADC interface option, two 24-bit timers/counters, multiple SERCOM modules configurable as UART/SPI/I2C, two CAN-FD channels, a USB 2.0 Full-Speed device interface, and an Event System for low-latency inter-peripheral signaling. The device supports 1.62V to 3.6V core operation while presenting 5V-tolerant digital I/O, simplifying designs that interface with legacy 5V logic. The SAM C21 architecture pairs the Cortex-M0+ core with a multi-layer AHB/APB bus matrix and dedicated SERCOM instances, enabling deterministic peripheral operation. Hardware accelerated CRC, a Memory Protection Unit for secure partitioning, and the PTC touch controller provide a robust platform for capacitive-button human-machine interfaces (HMIs) and motor control. Typical applications include industrial CAN-FD node endpoints, HVAC controllers, building automation, solar inverter monitoring, capacitive touch HMI panels, BLDC and stepper motor drive control, smart metering, and Functional Safety subsystems in IEC 60730 Class B equipment. Designers choose this part when they need deterministic Cortex-M0+ code execution, 5V I/O tolerance, and integrated CAN-FD on a single die. When designing with the ATSAMC21J18A-MUT64, allocate adequate PCB copper under the exposed pad (EP) for thermal dissipation and ground return. Place a 100 nF decoupling capacitor within 2 mm of each VDD pin group, and follow the datasheet reference layout for the 9x9 VQFN to maintain signal integrity on SERCOM and CAN-FD lines at 1 Mbit/s. This page synthesizes verified distributor pricing, pin-compatible alternatives drawn from the same Microchip SAM C21 family, and practical design notes derived from the Microchip SAM C21 datasheet - information not bundled on any single distributor page.

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ATSAMC21N18A-AN - 48MHz Cortex-M0+ 256KB Flash MCU | Microchip
ATSAMC21N18A-AN

ATSAMC21N18A-AN - 48MHz Cortex-M0+ 256KB Flash MCU | Microchip

The Microchip Technology ATSAMC21N18A-AN is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 family, operating at up to 48 MHz with 256 KB of in-system self-programmable Flash and 32 KB of SRAM, housed in a 100-pin TQFP package (14x14 mm). It supports an industrial 2.7 V to 5.5 V supply range and is qualified for -40 °C to +105 °C operation. An ARM Cortex-M0+ microcontroller is a low-power 32-bit processor core based on the Armv6-M architecture with single-cycle hardware multiplication, a Micro Trace Buffer, and an optional Memory Protection Unit (MPU). It belongs to the broader embedded hierarchy: microcontroller -> microprocessor -> integrated circuit -> semiconductor. Cortex-M0+ devices are commonly used as the central processing element in motor control, industrial sensing, and connected-edge systems where deterministic real-time response and low energy are required. Key features include six SERCOM channels, each independently configurable as UART, SPI, or I²C, plus one CAN-FD controller, a 12-bit 1 Msps ADC with up to 16 channels, two 16-bit timers plus a 24-bit timer/counter, and a Peripheral Touch Controller (PTC) supporting capacitive-touch sensing. The device also integrates an 8 KB independent Flash bank for EEPROM emulation, full-speed USB 2.0 with embedded PHY, and a 12-bit DAC. The ATSAMC21N18A-AN is built on a low-power CMOS process with multiple sleep modes (IDLE, STANDBY, OFF) and integrates functional-safety (FuSa) documentation for safety-critical designs. The 100-pin TQFP package exposes up to 84 GPIO pins plus dedicated analog and timer pins, supporting integration of mixed-signal front ends without external glue logic. Typical applications include industrial sensor hubs, building-automation controllers, motor-control front ends, automotive body and chassis ECUs, smart energy meters, and CAN-FD networked nodes. The combination of 5 V tolerance on digital I/O, integrated CAN-FD, and functional-safety documentation makes the device a strong fit for noisy industrial bus environments where 3.3 V-only MCUs are unreliable. When designing with this device, place a 1 µF decoupling capacitor adjacent to each power pin, follow the trace-length guidelines for the ADC analog supply (AVDD), and use MPLAB X IDE or Microchip Studio with the MPLAB Harmony code configurator to generate peripheral drivers. A 32.768 kHz crystal is recommended for accurate RTC timing when the internal low-power RC oscillator is insufficient. This page consolidates distributor stock, parametric drop-in alternatives, and PCB design guidance not assembled in the manufacturer data sheet, giving procurement and embedded engineers an actionable reference for the ATSAMC21N18A-AN.

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