Datasheet ATmega328/P - Summary (Microchip) - 3

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Table of Contents
Introduction..1 Feature.. 1 1. Description...4 2. Configuration Summary... 5 3. Ordering Information ...6 3.1. ATmega328 ... 6 3.2. ATmega328P ...7 4. Block Diagram... 8 5. Pin Configurations... 9 5.1. Pin-out.. 9 5.2. Pin Descriptions..12 6. I/O Multiplexing.. 14 7. Resources..16 8. Data Retention...17 9. About Code Examples... 18 10. Capacitive Touch Sensing... 19 10.1. QTouch Library... 19 11. Packaging Information... 20 11.1. 32-pin 32A.. 20 11.2. 32-pin 32M1-A..21 11.3. 28-pin 28M1..22 11.4. 28-pin 28P3.. 23 Document Outline Introduction Feature Table of Contents 1. Description 2. Configuration Summary 3. Ordering Information 3.1. ATmega328 3.2. ATmega328P 4. Block Diagram 5. Pin Configurations 5.1. Pin-out 5.2. Pin Descriptions 5.2.1. VCC 5.2.2. GND 5.2.3. Port B (PB[7:0]) XTAL1/XTAL2/TOSC1/TOSC2 5.2.4. Port C (PC[5:0]) 5.2.5. PC6/RESET 5.2.6. Port D (PD[7:0]) 5.2.7. AVCC 5.2.8. AREF 5.2.9. ADC[7:6] (TQFP and VFQFN Package Only) 6. I/O Multiplexing 7. Resources 8. Data Retention 9. About Code Examples 10. Capacitive Touch Sensing 10.1. QTouch Library 11. Packaging Information 11.1. 32-pin 32A 11.2. 32-pin 32M1-A 11.3. 28-pin 28M1 11.4. 28-pin 28P3