Datasheet

440
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
Rev. 2549B-05/05
Rev. 2549A-03/05
4. Updated “Bit Rate Generator Unit” on page 251.
5. Updated “Maximum speed vs. VCC” on page 377.
6. Updated “Ordering Information” on page 424.
7. Updated “Packaging Information” on page 429. Package 64M1 replaced
by 64M2.
8. Updated “Errata” on page 433.
1. JTAG ID/Signature for ATmega640 updated: 0x9608.
2. Updated Table 43 on page 94.
3. Updated “Serial Programming Instruction set” on page 359.
4. Updated “Errata” on page 433.
1. Initial version.