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ATSAMC21G18A
  • ATSAMC21G18A
  • ATSAMC21G18A
  • ATSAMC21G18A
  • ATSAMC21G18A

ATSAMC21G18A

In Production

The Microchip SAM C series of 5V Cortex M0+ devices is designed for industrial and commercial applications in noisy environments. These products feature robust communications peripherals including the SERCOM module and CAN-FD, along with advanced motor control peripherals, and the Peripheral Touch Control (PTC) for developing robust user interfaces. Available as a 64Mhz DeviceSupported by MPLAB X IDE and MPLAB Harmony.Functional Safety This device supports the ISO 26262 (ASIL B), IEC 61508 (SIL 2/3) and IEC 60730 (Class B) functional safety standards.  · The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the 32-bit Microcontrollers Functional Safety web page.. To request ...

Microchip Technology ATSAMC21G18A Product Info

16 April 2026 0

Parameters

CPU

Cortex-M0+

I2C

6

CPU Speed Max MHz (megahertz)

64

Operation Voltage Max.(V)

5.5

Operation Voltage Min.(V)

2.7

Internal Oscillator

32khz, 32Khz ULP, 48Mhz

Part Family

SAMC21

QSPI

0

U(S)ART

6

Program Memory Size (KB)

256

Pincount

48

Crypto Engine

No

TempRange Min

-40

TempRange Max

125

Features

  • ARM Cortex-M0+ CPU running at up to 64MHz
  • Single-cycle hardware multiplier
  • Micro Trace Buffer
  • Memory Protection Unit (MPU)
  • 256KB in-system self-programmable Flash
  • 8KB independent self-programmable Flash for EEPROM emulation
  • 32KB SRAM Main Memory
  • Power-on reset (POR) and brown-out detection (BOD)
  • Internal and external clock options with 48MHz to 96MHz
  • Fractional Digital Phase Locked Loop (FDPLL96M)
  • 16 external interrupts
  • One non-maskable interrupt
  • Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
  • Idle, standby, and off sleep modes
  • SleepWalking peripherals
  • Hardware Divide and Square Root Accelerator (DIVAS)
  • 12-channel Direct Memory Access Controller (DMAC)
  • 12-channel Event System
  • Up to eight 16-bit Timer/Counters (TC), configurable as either
  • One 16-bit TC with compare/capture channels
  • One 8-bit TC with compare/capture channels
  • One 32-bit TC with compare/capture channels, by using two TCs
  • Up to four compare channels with optional complementary output
  • Generation of synchronized pulse width modulation (PWM) pattern across port pins
  • Deterministic fault protection, fast decay and configurable dead-time between complementary outputs
  • Dithering that increase resolution with up to 5 bit and reduce quantization error
  • Frequency Meter
  • 32-bit Real Time Counter (RTC) with clock/calendar function
  • Watchdog Timer (WDT)
  • CRC-32 generator
  • CAN 2.0A/B
  • ISO CAN FD; ISO 1189801:2015
  • Each CAN interface have two selectable pin locations to switch between two external CAN transceivers (without the need for an external switch)
  • USART with full-duplex and single-wire half-duplex configuration
  • I2C up to 3.4MHz (Except SERCOM6 and SERCOM7)
  • SPI
  • LIN master/slave
  • RS-485
  • PMBus
  • Four Configurable Custom Logic (CCL)
  • Differential and single-ended input
  • Automatic offset and gain error compensation
  • Oversampling and decimation in hardware to support 13-, 14-, 15- or 16-bit resolution
  • One 16-bit Sigma-Delta Analog-to-Digital Converter (SDADC) with up to 2 differential channels
  • 10-bit, 350ksps Digital-to-Analog Converter (DAC)
  • Four Analog Comparators (AC) with window compare function
  • Integrated Temperature Sensor
  • Peripheral Touch Controller (PTC)
  • 256-Channel capacitive touch and proximity sensing I/O
  • Up to 38 programmable I/O pins
  • Drop in compatible with select SAM D20 and SAM D21
  • 2.7V – 5.5V

    • Description

    The Microchip SAM C series of 5V Cortex M0+ devices is designed for industrial and commercial applications in noisy environments. These products feature robust communications peripherals including the SERCOM module and CAN-FD, along with advanced motor control peripherals, and the Peripheral Touch Control (PTC) for developing robust user interfaces. 

    Available as a 64Mhz Device

    Supported by MPLAB X IDE and MPLAB Harmony.

    Functional Safety 

    This device supports the ISO 26262 (ASIL B), IEC 61508 (SIL 2/3) and IEC 60730 (Class B) functional safety standards.  

    · The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the 32-bit Microcontrollers Functional Safety web page.

    . To request any information about the SIL 2/3 STL, please fill out and submit the request form on Industrial Safety Self-Test Library web page.

    · Learn more about 32-bit MCUs with Functional Safety capabilities including device hardware and certified software libraries. 

     

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