Contents

Introduction Features 1. Description 2. Configuration Summary 3. Ordering Information 3.1. SAM L22N 3.2. SAM L22J 3.3. SAM L22G 3.4. Device Identification 4. Block Diagram 5. Pinout 5.1. SAM L22G 5.2. SAM L22J 5.3. SAM L22N 6. Signal Descriptions List 7. I/O Multiplexing and Considerations 7.1. Multiplexed Signals 7.2. Other Functions 7.2.1. Oscillator Pinout 7.2.2. Serial Wire Debug Interface Pinout 7.2.3. SERCOM USART and I2C Configurations 7.2.4. GPIO Pin Clusters 8. Power Supply and Start-Up Considerations 8.1. Power Domain Overview 8.2. Power Supply Considerations 8.2.1. Power Supplies 8.2.2. Voltage Regulator 8.2.3. Typical Powering Schematic 8.2.4. Power-Up Sequence 8.2.4.1. Supply Order 8.2.4.2. Minimum Rise Rate 8.2.4.3. Maximum Rise Rate 8.3. Power-Up 8.3.1. Starting of Internal Regulator 8.3.2. Starting of Clocks 8.3.3. I/O Pins 8.3.4. Fetching of Initial Instructions 8.4. Power-On Reset and Brown-Out Detector 8.4.1. Power-On Reset on VSWOUT 8.4.2. Power-On Reset on VDDIO 8.4.3. Brown-Out Detector on VSWOUT/VBAT 8.4.4. Brown-Out Detector on VDDCORE 8.5. Performance Level Overview 9. Product Mapping 10. Memories 10.1. Embedded Memories 10.2. Physical Memory Map 10.3. NVM User Row Mapping 10.4. NVM Software Calibration Area Mapping 10.5. Serial Number 11. Processor and Architecture 11.1. Cortex M0+ Processor 11.1.1. Cortex M0+ Configuration 11.1.2. Cortex M0+ Peripherals 11.1.3. Cortex M0+ Address Map 11.1.4. I/O Interface 11.2. Nested Vector Interrupt Controller 11.2.1. Overview 11.2.2. Interrupt Line Mapping 11.3. Micro Trace Buffer 11.3.1. Features 11.3.2. Overview 11.4. High-Speed Bus System 11.4.1. Overview 11.4.2. Features 11.4.3. Configuration 11.4.4. SRAM Quality of Service 12. Packaging Information 12.1. Thermal Considerations 12.1.1. Thermal Resistance Data 12.1.2. Junction Temperature 12.2. Package Drawings 12.2.1. 100 pin TQFP 12.2.2. 100-Pin UFBGA 12.2.3. 64 pin TQFP 12.2.4. 64 pin QFN 12.2.5. 49-Ball WLCSP 12.2.6. 48 pin TQFP 12.2.7. 48 pin QFN 12.3. Soldering Profile The Microchip Web Site Customer Change Notification Service Customer Support Product Identification System Microchip Devices Code Protection Feature Legal Notice Trademarks Quality Management System Certified by DNV Worldwide Sales and Service