Datasheet ATmega164A - Summary (Microchip) - 3

link to page 16 Data Retention on page 16 Atmel ATmega164A [DATASHEET] 3 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