54.13 Rev I - 09/2016

General	Removed preliminary status from the datasheet.
2 Ordering Information	SAM C20J/SAM C21J: Added -UUT ordering codes for SAM C20/C21J17 and SAM C20/C21J18
4 Pinout	Added pinout for the 4.3.2 WLCSP56 package.
6 I/O Multiplexing and Considerations	6.1 Multiplexed Signals: VREFB removed from the reference (REF) column. This is not an option.
20 OSCCTRL – Oscillators Controller	20.6.4 48MHz Internal Oscillator (OSC48M) Operation: Removed the sentence "Frequency selection must be done when OSC48M is disabled."
22 SUPC – Supply Controller	Removed references to backup domain.
23 WDT – Watchdog Timer	Removed references to backup domain.
24 RTC – Real-Time Counter	24.6.2.5 Clock/Calendar (Mode 2): Updated description.
25 DMAC – Direct Memory Access Controller	25.6.7 Sleep Mode Operation: Added information on behaviour of DMA channels with CHCTRLA.RUNSTDBY=0.
26 EIC – External Interrupt Controller	Added interrupt pin debouncing.
31 SERCOM USART - SERCOM Synchronous and Asynchronous Receiver and Transmitter	31.6.3.5 LIN Host section added. CTRLA31.8.1 Control A.TXPO: Row heading updated from RTS to RTS/TE. CTRLA31.8.1 Control A.FORM: Added LIN Master to FORM[3:0]=0x2. Added LIN Slave to FORM[3:0]=0x4. CTRLB31.8.2 Control B.LINCMD[3:0] bit group added CTRLC31.8.3 Control C.GTIME: Bitfield values removed.
35 Timer/Counter (TC)	CTRLA35.7.1.1 Control A.ENABLE and SWRST bit description updated: Added "This bit is not enable protected."
38 ADC - Analog-to-Digital Converter	38.6.2.5 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.
41 DAC – Digital-to-Analog Converter (SAM C21 only)	CTRLB41.8.2 Control B.ION bit description updated: For bit value '1' the internal DAC can be used as input to the AC or ADC.
43 TSENS – Temperature Sensor	Added example to the VALUE43.8.10 Value register.
45 Electrical Characteristics 85°C (SAM C20/C21 E/G/J)	45.2 Absolute Maximum Ratings: VDD max updated from 5.5V to 6.1V. 45.3 General Operating Ratings: Updated note. 45.4 Injection Current: New section added. 45.7 Power Consumption: Standby typical values updated and maximum values added. 45.10.4 Analog-to-Digital Converter (ADC) Characteristics: Added Ts, sampling tile with DAC as input. 45.10.4 Analog-to-Digital Converter (ADC) Characteristics: In the condition column REFCTRL.REFSEL is corrected to CTRLC.RESSEL. 45.10.7 Analog Comparator Characteristics: Removed Hysteresis for COMPCTRLn.SPEED = 0x0 (low power), Updated IDDANS units from nA to μA and updated condition for IDDANA with voltage scaler disabled (COMPCTRLn.SPEED = 0x1 changed to 0x3). 45.12.3 Digital Phase Locked Loop (DPLL) Characteristics: Updated values. 45.12.6 48 MHz RC Oscillator (OSC48M) Characteristics: Added note on the output frequency regarding accuracy for the WLCSP package.
46 Electrical Characteristics 105°C (SAM C20/C21 E/G/J)	46.3 Power Consumption: Standby typical values updated and maximum values added. 46.5 NVM Characteristics: New section added. 46.4.5 Analog Comparator (AC) Characteristics: Updated IDDANA units from nA to μA and updated condition for IDD with voltage scaler disabled (COMPCTRLn.SPEED = 0x1 changed to 0x3). 46.6.3 Digital Phase Locked Loop (DPLL) Characteristics: Characterization data added.
52 Packaging Information	Added package outline drawing (POD) for 52.3.6 56-Ball WLCSP.
53 Schematic Checklist	53.4 External Analog Reference Connections: Recommended pin connections column updated. External Reset Circuit: Updated description.

General

Removed preliminary status from the datasheet.

2 Ordering Information

SAM C20J/SAM C21J: Added -UUT ordering codes for SAM C20/C21J17 and SAM C20/C21J18

4 Pinout

Added pinout for the 4.3.2 WLCSP56 package.

6 I/O Multiplexing and Considerations

6.1 Multiplexed Signals: VREFB removed from the reference (REF) column. This is not an option.

20 OSCCTRL – Oscillators Controller

20.6.4 48MHz Internal Oscillator (OSC48M) Operation: Removed the sentence "Frequency selection must be done when OSC48M is disabled."

22 SUPC – Supply Controller

Removed references to backup domain.

23 WDT – Watchdog Timer

Removed references to backup domain.

24 RTC – Real-Time Counter

24.6.2.5 Clock/Calendar (Mode 2): Updated description.

25 DMAC – Direct Memory Access Controller

25.6.7 Sleep Mode Operation: Added information on behaviour of DMA channels with CHCTRLA.RUNSTDBY=0.

26 EIC – External Interrupt Controller

Added interrupt pin debouncing.

31 SERCOM USART - SERCOM Synchronous and Asynchronous Receiver and Transmitter

31.6.3.5 LIN Host section added.
CTRLA31.8.1 Control A.TXPO: Row heading updated from RTS to RTS/TE.
CTRLA31.8.1 Control A.FORM: Added LIN Master to FORM[3:0]=0x2. Added LIN Slave to FORM[3:0]=0x4.
CTRLB31.8.2 Control B.LINCMD[3:0] bit group added
CTRLC31.8.3 Control C.GTIME: Bitfield values removed.

35 Timer/Counter (TC)

CTRLA35.7.1.1 Control A.ENABLE and SWRST bit description updated: Added "This bit is not enable protected."

38 ADC - Analog-to-Digital Converter

38.6.2.5 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.

41 DAC – Digital-to-Analog Converter (SAM C21 only)

CTRLB41.8.2 Control B.ION bit description updated: For bit value '1' the internal DAC can be used as input to the AC or ADC.

43 TSENS – Temperature Sensor

Added example to the VALUE43.8.10 Value register.

45 Electrical Characteristics 85°C (SAM C20/C21 E/G/J)

45.2 Absolute Maximum Ratings: VDD max updated from 5.5V to 6.1V.
45.3 General Operating Ratings: Updated note.
45.4 Injection Current: New section added.
45.7 Power Consumption: Standby typical values updated and maximum values added.
45.10.4 Analog-to-Digital Converter (ADC) Characteristics:
- Added Ts, sampling tile with DAC as input.
- 45.10.4 Analog-to-Digital Converter (ADC) Characteristics: In the condition column REFCTRL.REFSEL is corrected to CTRLC.RESSEL.
- 45.10.7 Analog Comparator Characteristics: Removed Hysteresis for COMPCTRLn.SPEED = 0x0 (low power), Updated IDDANS units from nA to μA and updated condition for IDDANA with voltage scaler disabled (COMPCTRLn.SPEED = 0x1 changed to 0x3).
45.12.3 Digital Phase Locked Loop (DPLL) Characteristics: Updated values.
45.12.6 48 MHz RC Oscillator (OSC48M) Characteristics: Added note on the output frequency regarding accuracy for the WLCSP package.

46 Electrical Characteristics 105°C (SAM C20/C21 E/G/J)

46.3 Power Consumption: Standby typical values updated and maximum values added.
46.5 NVM Characteristics: New section added.
46.4.5 Analog Comparator (AC) Characteristics: Updated IDDANA units from nA to μA and updated condition for IDD with voltage scaler disabled (COMPCTRLn.SPEED = 0x1 changed to 0x3).
46.6.3 Digital Phase Locked Loop (DPLL) Characteristics: Characterization data added.

52 Packaging Information

Added package outline drawing (POD) for 52.3.6 56-Ball WLCSP.

53 Schematic Checklist

53.4 External Analog Reference Connections: Recommended pin connections column updated.
External Reset Circuit: Updated description.