Datasheet

Table of Contents
Features.......................................................................................................................... 1
1. Description...............................................................................................................12
2. Configuration Summary...........................................................................................13
3. Ordering Information
(1)
............................................................................................ 15
4. Block Diagram......................................................................................................... 16
5. Pinout...................................................................................................................... 18
5.1. SAM D21J.................................................................................................................................. 18
5.2. SAM D21G................................................................................................................................. 20
5.3. SAM D21GxL............................................................................................................................. 22
5.4. SAM D21ExA/B/C/D...................................................................................................................23
5.5. SAM D21ExL..............................................................................................................................25
6. Signal Descriptions List........................................................................................... 26
7. I/O Multiplexing and Considerations........................................................................28
7.1. Multiplexed Signals.................................................................................................................... 28
7.2. Other Functions..........................................................................................................................32
8. Power Supply and Start-Up Considerations............................................................ 35
8.1. Power Domain Overview............................................................................................................35
8.2. Power Supply Considerations.................................................................................................... 35
8.3. Power-Up................................................................................................................................... 37
8.4. Power-On Reset and Brown-Out Detector................................................................................. 37
9. Product Mapping..................................................................................................... 39
10. Memories.................................................................................................................41
10.1. Embedded Memories................................................................................................................. 41
10.2. Physical Memory Map................................................................................................................ 41
10.3. NVM Calibration and Auxiliary Space........................................................................................ 42
11. Processor And Architecture.....................................................................................46
11.1. Cortex M0+ Processor............................................................................................................... 46
11.2. Nested Vector Interrupt Controller..............................................................................................47
11.3. Micro Trace Buffer......................................................................................................................49
11.4. High-Speed Bus System............................................................................................................ 50
11.5. AHB-APB Bridge........................................................................................................................ 52
11.6. PAC - Peripheral Access Controller........................................................................................... 53
12. Peripherals Configuration Summary........................................................................69
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Datasheet Complete
DS40001882D-page 3