Datasheet
Table Of Contents
- 1. Pin Configurations
- 2. Overview
- 2.1 Block Diagram
- 2.2 Comparison Between ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
- 2.3 Pin Descriptions
- 2.3.1 VCC
- 2.3.2 GND
- 2.3.3 Port A (PA7...PA0)
- 2.3.4 Port B (PB7...PB0)
- 2.3.5 Port C (PC7...PC0)
- 2.3.6 Port D (PD7...PD0)
- 2.3.7 Port E (PE7...PE0)
- 2.3.8 Port F (PF7...PF0)
- 2.3.9 Port G (PG5...PG0)
- 2.3.10 Port H (PH7...PH0)
- 2.3.11 Port J (PJ6...PJ0)
- 2.3.12 RESET
- 2.3.13 XTAL1
- 2.3.14 XTAL2
- 2.3.15 AVCC
- 2.3.16 AREF
- 2.3.17 LCDCAP
- 3. Resources
- 4. Data Retention
- 5. About Code Examples
- 6. Capacitive touch sensing
- 7. Register Summary
- 8. Instruction Set Summary
- 9. Ordering Information
- 10. Packaging Information
- 11. Errata
- 12. Datasheet Revision History

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8284CS–AVR–6/11
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
12. Datasheet Revision History
Please note that the referring page numbers in this section are referring to this document.The
referring revision in this section are referring to the document revision.
12.1 Rev. 8284C - 06/11
12.2 Rev. 8284B - 03/11
12.3 Rev. 8284A - 10/10
1. Updated ”Signature Bytes” on page 313. A, P, and PA devices have different
signature (0x002) bytes.
2. Updated all ”DC Characteristics” on page 344.
1. Updated the datasheet according to the Atmel new Brand Style Guide.
2. Updated all ”Ordering Information” on page 19.
3. Updated ”Packaging Information” on page 29.
1. Initial revision