Datasheet ATmega164A - Summary (Microchip) - 4

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Table of Contents
Introduction..1 Feature.. 1 1. Description...5 2. Configuration Summary... 6 3. Ordering Information ...7 4. Block Diagram... 8 5. Pin Configurations... 9 5.1. Pinout... 9 5.2. Pin Descriptions..12 6. I/O Multiplexing.. 14 7. General Information... 16 7.1. Resources.. 16 7.2. Data Retention..16 7.3. About Code Examples..16 7.4. Capacitive Touch Sensing.. 16 8. Packaging Information... 17 8.1. 40-pin PDIP.. 17 8.2. 44-pin TQFP...18 8.3. 44-pin VQFN...19 8.4. 44-pin QFN...20 8.5. 49-pin VFBGA.. 21 Atmel ATmega164A [DATASHEET] 4 Atmel-42712C-ATmega164A_Datasheet_Summary-10/2016 Document Outline Introduction Feature Table of Contents 1. Description 2. Configuration Summary 3. Ordering Information 4. Block Diagram 5. Pin Configurations 5.1. Pinout 5.1.1. PDIP 5.1.2. TQFN and QFN 5.1.3. DRQFN 5.1.4. VFBGA 5.2. Pin Descriptions 5.2.1. VCC 5.2.2. GND 5.2.3. Port A (PA[7:0]) 5.2.4. Port B (PB[7:0]) 5.2.5. Port C (PC[7:0]) 5.2.6. Port D (PD[7:0]) 5.2.7. RESET 5.2.8. XTAL1 5.2.9. XTAL2 5.2.10. AVCC 5.2.11. AREF 6. I/O Multiplexing 7. General Information 7.1. Resources 7.2. Data Retention 7.3. About Code Examples 7.4. Capacitive Touch Sensing 7.4.1. QTouch Library 8. Packaging Information 8.1. 40-pin PDIP 8.2. 44-pin TQFP 8.3. 44-pin VQFN 8.4. 44-pin QFN 8.5. 49-pin VFBGA