54.4 Rev I - 09/2016

General
  • Removed preliminary status from the datasheet.
Ordering Information
  • SAM C20J/SAM C21J: Added -UUT ordering codes for SAM C20/C21J17 and SAM C20/C21J18
Pinout
  • Added pinout for the WLCSP56 package.
I/O Multiplexing and Considerations
OSCCTRL – Oscillators Controller
SUPC – Supply Controller
  • Removed references to backup domain.
WDT – Watchdog Timer
  • Removed references to backup domain.
RTC – Real-Time Counter
DMAC – Direct Memory Access Controller
EIC – External Interrupt Controller
  • Added interrupt pin debouncing.
SERCOM USART - SERCOM Synchronous and Asynchronous Receiver and Transmitter
  • LIN Host section added.
  • CTRLA.TXPO: Row heading updated from RTS to RTS/TE.
  • CTRLA.FORM: Added LIN Master to FORM[3:0]=0x2. Added LIN Slave to FORM[3:0]=0x4.
  • CTRLB.LINCMD[3:0] bit group added
  • CTRLC.GTIME: Bitfield values removed.
Timer/Counter (TC)
  • CTRLA.ENABLE and SWRST bit description updated: Added "This bit is not enable protected."
ADC - Analog-to-Digital Converter
  • Reference Configuration: Removed information on number of external and internal voltage references and supported voltage supply range. This information is replaced with references to the REFCTRL.REFSEL register bits and ADC characteristics for reference selection details and voltage ranges respectively.
DAC – Digital-to-Analog Converter (SAM C21 only)
  • CTRLB.ION bit description updated: For bit value '1' the internal DAC can be used as input to the AC or ADC.
TSENS – Temperature Sensor
  • Added example to the VALUE register.
Electrical Characteristics 85°C (SAM C20/C21 E/G/J)
Electrical Characteristics 105°C (SAM C20/C21 E/G/J)
Packaging Information
Schematic Checklist