Features

Operating Conditions
  • 2.7V – 5.5V
    • -40°C to +125°C, DC to 48 MHz
    • -40°C to +85°C, DC to 64 MHz
Core
  • Arm® Cortex®-M0+ CPU running at up to 48 MHz or 64 MHz:
    • Single-cycle hardware multiplier
    • Micro Trace Buffer
    • Memory Protection Unit (MPU)
Memories
  • 32/64/128/256 KB in-system self-programmable Flash
  • 1/2/4/8 KB independent self-programmable Flash for EEPROM emulation
  • 4/8/16/32 KB SRAM main memory
System
  • Power-on Reset (POR) and Brown-out Detection (BOD)
  • Internal and external clock options with 48 MHz to 96 MHz Fractional Digital Phase Locked Loop (FDPLL96M)
  • External Interrupt Controller (EIC) (Interrupt pin debouncing is only available in SAM C20/C21 N)
  • 16 external interrupts
    • Hardware debouncing (only available in SAM C20/C21 N)
  • One non-maskable interrupt
  • Two-pin Serial Wire Debug (SWD) programming, test, and debugging interface
Low-Power
  • Idle and Standby Sleep modes
  • SleepWalking peripherals
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 (see Note):
    Note: Maximum and minimum capture is only available in the SAM C21N devices.
    • 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
  • Two 24-bit and one 16-bit Timer/Counter for Control (TCC), with extended functions:
    • Up to eight PWM channels on each 24-bit TCC
    • Up to two PWM channels on each 16-bit TCC
    • 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 output
    • Dithering that increase resolution with up to 5 bit and reduce quantization error
  • Frequency Meter (The division reference clock is only available in the SAM C21N)
  • 32-bit Real Time Counter (RTC) with clock/calendar function
  • Watchdog Timer (WDT)
  • CRC-32 generator
  • Up to two Controller Area Network (CAN) interfaces in the SAM C21:
    • CAN 2.0A/B and CAN-FD (ISO 11898-1:2015)
      • Each CAN interface have two selectable pin locations to switch between two external CAN transceivers (without the need for an external switch)
  • Up to eight Serial Communication Interfaces (SERCOM), each configurable to operate as either:
    • USART with full-duplex and single-wire half-duplex configuration
    • I2C up to 3.4 MHz (Except SERCOM6 and SERCOM7)
    • SPI
    • LIN host/client
    • RS-485
    • PMBus
  • One Configurable Custom Logic (CCL)
  • Up to Two 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to 12 channels each (20 unique channels)
    • 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 3 differential channels in the SAM C21
  • 10-bit, 350 ksps Digital-to-Analog Converter (DAC) in the SAM C21
  • Up to four Analog Comparators (AC) with Window Compare function
  • Integrated Temperature Sensor in the SAM C21
  • Peripheral Touch Controller (PTC)
    • 256-Channel capacitive touch and proximity sensing
I/O
  • Up to 84 programmable I/O pins

Qualification

  • AEC - Q100 Grade 1 (-40°C to 125°C)
Packages
  • 100-pin TQFP
  • 64-pin TQFP, VQFN
  • 56-pin WLCSP
  • 48-pin TQFP, VQFN
  • 32-pin TQFP, VQFN

General

  • Drop in compatible with SAM D20 and SAM D21 (see Note)
Note: Only applicable to 32-pin, 48-pin, and 64-pin TQFP and VQFN packages.