Data Sheet

1061
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
41.4 Rev. D – 09/2014
“I/O Pin Configuration” on page 384: Removed reference to “open-drain”.
Access for DRVSTR bit in Pin Configuration n register (PINCFGn.DRVCTR) updated from W to R/W.
“SYSCTRL – System Controller” on page 148:
Removed references to XOSC32K and OSC32 1kHz clock output option:
- XOSC32K: “32kHz External Crystal Oscillator (XOSC32K) Operation” on page 153
- OSC32K: “32kHz Internal Oscillator (OSC32K) Operation” on page 154
1kHz Output Enable (EN1K) bit set as reserved bit:
- Bit 4 in XOSC32K
- Bit 3 in OSC32K
“Electrical Characteristics” on page 935:
“Brown-Out Detectors Characteristics” on page 953: Added Figure 36-3 and Figure 36-4 and updated conditions in
Table 36-19 and Table 36-20.
“Packaging Information” on page 997:
Added “64-ball UFBGA” on page 1000 and “45-ball WLCSP” on page 1003 package drawings.
“Schematic Checklist” on page 1008
Updated description in “Unused or Unconnected Pins” on page 1011.
Errata:
Device Variant A:
- Updated errata for revision A: Added Errata Reference 12291, 13507, 13574.
- Updated errata for revision B: Added Errata Reference 12291, 13507, 13574.
- Updated errata for revision C: Added Errata Reference 12291, 13507, 13574, 13951.
- Added errata for revision D.
Device Variant B:
- Added errata for revision E (Only available for SAMD21x15/16).
“Electrical Characteristics at 125°C” on page 1067:
Electrical characteristics for 125°C added.
“Block Diagram” on page 12
NVM Controller bus connection changed from Master to Slave.
“Clock System” on page 87
“Register Synchronization” on page 88 updated by splitting the section into “Common Synchronizer Register
Synchronization” on page 88 and “Distributed Synchronizer Register Synchronization” on page 91.
“Electrical Characteristics” on page 935
“Analog-to-Digital (ADC) Characteristics” on page 955: Added note defining gain accuracy parameter in:
- ADC Differential Mode, Table 36-22
- ADC Single-Ended Mode, Table 36-24
Errata
Updated errata for revision A, B and C: Added Errata Reference 13140, 12860.