Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsDev KitsPCB design board

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Table Of Contents

Description
Features
1. Configuration Summary
2. Ordering Information
- 2.1 SAM D20E
- 2.2 SAM D20G
- 2.3 SAM D20J
3. Block Diagram
4. Pinout
- 4.1 SAM D20J
- 4.2 SAM D20G
- 4.3 SAM D20E
5. I/O Multiplexing and Considerations
- 5.1 Multiplexed Signals
- 5.2 Other Functions
  - 5.2.1 Oscillator Pinout
  - 5.2.2 Serial Wire Debug Interface Pinout
6. Signal Descriptions List
7. Power Supply and Start-Up Considerations
- 7.1 Power Domain Overview
- 7.2 Power Supply Considerations
- 7.3 Power-Up
- 7.4 Power-On Reset and Brown-Out Detector
8. Product Mapping
9. Memories
- 9.1 Embedded Memories
- 9.2 Physical Memory Map
- 9.3 Non-Volatile Memory (NVM) User Row Mapping
- 9.4 NVM Software Calibration Area Mapping
- 9.5 Serial Number
10. Processor and Architecture
- 10.1 Cortex-M0+ Processor
- 10.2 Nested Vector Interrupt Controller
  - 10.2.1 Overview
  - 10.2.2 Interrupt Line Mapping
- 10.3 High-Speed Bus Matrix
  - 10.3.1 Features
  - 10.3.2 Configuration
- 10.4 AHB-APB Bridge
- 10.5 PAC – Peripheral Access Controller
  - 10.5.1 Overview
- 10.6 Register Description
11. Peripherals Configuration Overview
12. DSU – Device Service Unit
- 12.1 Overview
- 12.2 Features
- 12.3 Block Diagram
- 12.4 Signal Description
- 12.5 Product Dependencies
- 12.6 Debug Operation
- 12.7 Chip-Erase
- 12.8 Programming
- 12.9 Intellectual Property Protection
- 12.10 Device Identification
  - 12.10.1 CoreSight Identification
  - 12.10.2 DSU Chip Identification Method:
- 12.11 Functional Description
- 12.12 Register Summary
- 12.13 Register Description
13. Clock System
- 13.1 Clock Distribution
- 13.2 Synchronous and Asynchronous Clocks
- 13.3 Register Synchronization
- 13.4 Enabling a Peripheral
- 13.5 On-demand, Clock Requests
- 13.6 Power Consumption vs Speed
- 13.7 Clocks after Reset
14. GCLK – Generic Clock Controller
- 14.1 Overview
- 14.2 Features
- 14.3 Block Diagram
- 14.4 Signal Description
- 14.5 Product Dependencies
- 14.6 Functional Description
- 14.7 Register Summary
- 14.8 Register Description
15. PM – Power Manager
- 15.1 Overview
- 15.2 Features
- 15.3 Block Diagram
- 15.4 Signal Description
- 15.5 Product Dependencies
- 15.6 Functional Description
- 15.7 Register Summary
- 15.8 Register Description
16. SYSCTRL – System Controller
- 16.1 Overview
- 16.2 Features
- 16.3 Block Diagram
- 16.4 Signal Description
- 16.5 Product Dependencies
- 16.6 Functional Description
- 16.7 Register Summary
- 16.8 Register Description
17. WDT – Watchdog Timer
- 17.1 Overview
- 17.2 Features
- 17.3 Block Diagram
- 17.4 Signal Description
- 17.5 Product Dependencies
- 17.6 Functional Description
- 17.7 Register Summary
- 17.8 Register Description
18. RTC – Real-Time Counter
- 18.1 Overview
- 18.2 Features
- 18.3 Block Diagram
- 18.4 Signal Description
- 18.5 Product Dependencies
- 18.6 Functional Description
- 18.7 Register Summary
- 18.8 Register Description
19. EIC – External Interrupt Controller
- 19.1 Overview
- 19.2 Features
- 19.3 Block Diagram
- 19.4 Signal Description
- 19.5 Product Dependencies
- 19.6 Functional Description
- 19.7 Register Summary
- 19.8 Register Description
20. NVMCTRL – Non-Volatile Memory Controller
- 20.1 Overview
- 20.2 Features
- 20.3 Block Diagram
- 20.4 Signal Description
- 20.5 Product Dependencies
- 20.6 Functional Description
- 20.7 Register Summary
- 20.8 Register Description
21. PORT
- 21.1 Overview
- 21.2 Features
- 21.3 Block Diagram
- 21.4 Signal Description
- 21.5 Product Dependencies
- 21.6 Functional Description
- 21.7 Register Summary
- 21.8 Register Description
22. EVSYS – Event System
- 22.1 Overview
- 22.2 Features
- 22.3 Block Diagram
- 22.4 Signal Description
- 22.5 Product Dependencies
- 22.6 Functional Description
- 22.7 Register Summary
- 22.8 Register Description
23. SERCOM – Serial Communication Interface
- 23.1 Overview
- 23.2 Features
- 23.3 Block Diagram
- 23.4 Signal Description
- 23.5 Product Dependencies
- 23.6 Functional Description
24. SERCOM USART – SERCOM Universal Synchronous and Asynchronous Receiver and Transmitter
- 24.1 Overview
- 24.2 Features
- 24.3 Block Diagram
- 24.4 Signal Description
- 24.5 Product Dependencies
- 24.6 Functional Description
- 24.7 Register Summary
- 24.8 Register Description
25. SERCOM SPI – SERCOM Serial Peripheral Interface
- 25.1 Overview
- 25.2 Features
- 25.3 Block Diagram
- 25.4 Signal Description
- 25.5 Product Dependencies
- 25.6 Functional Description
- 25.7 Register Summary
- 25.8 Register Description
26. SERCOM I2C – SERCOM Inter-Integrated Circuit
- 26.1 Overview
- 26.2 Features
- 26.3 Block Diagram
- 26.4 Signal Description
- 26.5 Product Dependencies
- 26.6 Functional Description
- 26.7 Register Summary
- 26.8 Register Description
  - 26.8.1 I2C Slave Register Description
  - 26.8.2 I2C Master Register Description
27. TC – Timer/Counter
- 27.1 Overview
- 27.2 Features
- 27.3 Block Diagram
- 27.4 Signal Description
- 27.5 Product Dependencies
- 27.6 Functional Description
- 27.7 Register Summary
- 27.8 Register Description
28. ADC – Analog-to-Digital Converter
- 28.1 Overview
- 28.2 Features
- 28.3 Block Diagram
- 28.4 Signal Description
- 28.5 Product Dependencies
- 28.6 Functional Description
- 28.7 Register Summary
- 28.8 Register Description
29. AC – Analog Comparators
- 29.1 Overview
- 29.2 Features
- 29.3 Block Diagram
- 29.4 Signal Description
- 29.5 Product Dependencies
- 29.6 Functional Description
- 29.7 Additional Features
- 29.8 Register Summary
- 29.9 Register Description
30. DAC – Digital-to-Analog Converter
- 30.1 Overview
- 30.2 Features
- 30.3 Block Diagram
- 30.4 Signal Description
- 30.5 Product Dependencies
- 30.6 Functional Description
- 30.7 Register Summary
- 30.8 Register Description
31. PTC - Peripheral Touch Controller
- 31.1 Overview
- 31.2 Features
- 31.3 Block Diagram
- 31.4 Signal Description
- 31.5 Product Dependencies
  - 31.5.1 I/O Lines
  - 31.5.2 Clocks
- 31.6 Functional Description
32. Electrical Characteristics
- 32.1 Disclaimer
- 32.2 Absolute Maximum Ratings
- 32.3 General Operating Ratings
- 32.4 Supply Characteristics
- 32.5 Maximum Clock Frequencies
- 32.6 Power Consumption
- 32.7 I/O Pin Characteristics
- 32.8 Analog Characteristics
- 32.9 NVM Characteristics
- 32.10 Oscillators Characteristics
- 32.11 PTC Typical Characteristics
- 32.12 Timing Characteristics
33. Packaging Information
- 33.1 Thermal Considerations
  - 33.1.1 Thermal Resistance Data
  - 33.1.2 Junction Temperature
- 33.2 Package Drawings
- 33.3 Soldering Profile
34. Schematic Checklist
- 34.1 Introduction
- 34.2 Power Supply
  - 34.2.1 Power Supply Connections
- 34.3 External Analog Reference Connections
- 34.4 External Reset Circuit
- 34.5 Unused or Unconnected Pins
- 34.6 Clocks and Crystal Oscillators
- 34.7 Programming and Debug Ports
35. Errata
- 35.1 Revision D
- 35.2 Revision C
- 35.3 Revision B
- 35.4 Revision A
36. Datasheet Revision History
- 36.1 Rev. K – 05/2014
- 36.2 Rev. J – 12/2013
- 36.3 Rev. I – 12/2013
- 36.4 Rev. H – 10/2013
- 36.5 Rev. G – 10/2013
- 36.6 Rev. F – 10/2013
- 36.7 Rev. E – 09/2013
- 36.8 Rev. D – 08/2013
- 36.9 Rev. C – 07/2013
- 36.10 Rev. B – 07/2013
- 36.11 Rev. A – 06/2013
Appendix A. Conventions
- A.1 Numerical Notation
- A.2 Memory Size and Type
- A.3 Frequency and Time
- A.4 Registers and Bits
Appendix B. Acronyms and Abbreviations
Table of Contents

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Atmel | SMART SAM D20 [DATASHEET]

Atmel-42129K–SAM-D20_datasheet–06/2014

4. Pinout

4.1 SAM D20J

PA00

1

PA01

2

PA02

3

PA03

4

PB04

5

PB05 6

GNDANA

7

VDDANA

8

PB06 9

PB07 10

PB08

11

PB09

12

PA04

13

PA05

14

PA06 15

PA07 16

PA08

17

PA09 18

PA10 19

PA11

20

VDDIO

21

GND

22

PB10

23

PB11 24

PB12

25

PB13

26

PB14 27

PB15 28

PA12

29

PA13 30

PA14

31

PA15

32

VDDIO48

GND47

PA2546

PA2445

PA2344

PA2243

PA2142

PA2041

PB1740

PB1639

PA1938

PA1837

PA1736

PA1635

VDDIO34

GND33

PB22

49

PB23

50

PA27

51

RESET

52

PA28

53

GND

54

VDDCORE

55

VDDIN

56

PA30

57

PA31

58

PB30

59

PB31

60

PB0061

PB0162

PB02

63

PB03

64

DIGITAL PIN

ANALOG PIN

OSCILLATOR

GROUND

INPUT SUPPLY

REGULATED OUTPUT SUPPLY

RESET PIN