link to page 1 link to page 1 link to page 4 link to page 5 link to page 9 link to page 9 link to page 9 link to page 9 link to page 10 link to page 10 link to page 11 link to page 13 link to page 14 link to page 15 link to page 16 link to page 16 link to page 17 Table of Contents Introduction..1 Features.. 1 1. Pin configurations.. 4 1.1. Pin descriptions.. 5 2. Ordering Information ...9 2.1. ATmega16M1... 9 2.2. ATmega32M1... 9 2.3. ATmega64M1... 9 3. Overview..10 3.1. Block diagram...10 3.2. Pin descriptions.. 11 4. Resources..13 5. About code examples.. 14 6. Data retention.. 15 7. Packaging Information... 16 7.1. 32-pin 32A.. 16 7.2. PV 32 QFN... 17 Document Outline Introduction Features Table of Contents 1. Pin configurations 1.1. Pin descriptions 2. Ordering Information 2.1. ATmega16M1 2.2. ATmega32M1 2.3. ATmega64M1 3. Overview 3.1. Block diagram 3.2. Pin descriptions 3.2.1. VCC 3.2.2. GND 3.2.3. Port B (PB7..PB0) 3.2.4. Port C (PC7..PC0) 3.2.5. Port D (PD7..PD0) 3.2.6. Port E (PE2..0) RESET/ XTAL1/XTAL2 3.2.7. AVCC 3.2.8. AREF 4. Resources 5. About code examples 6. Data retention 7. Packaging Information 7.1. 32-pin 32A 7.2. PV 32 QFN
