4.
5.
6.
Updated “Device Identification Register” on page 304.
Updated “Signature Bytes” on page 340.
Updated “Instruction Set Summary” on page 419.
10.4 Rev. 2549I-07/06
1.
2.
Added “Data Retention” on page 10.
Updated Table 16-3 on page 129, Table 16-6 on page 130, Table 16-8 on
page 131, Table 17-2 on page 148, Table 17-4 on page 160, Table 17-5 on
page 160, Table 20-3 on page 188, Table 20-6 on page 189 and Table 20-8
on page 190.
3.
Updated “Fast PWM Mode” on page 150.
10.5 Rev. 2549H-06/06
1.
2.
3.
Updated “Calibrated Internal RC Oscillator” on page 46.
Updated “OSCCAL – Oscillator Calibration Register” on page 50.
Added Table 31-1 on page 374.
10.6 Rev. 2549G-06/06
1.
2.
3.
4.
5.
6.
7.
8.
9.
Updated “Features” on page 1.
Added Figure 1-2 on page 3, Table 1-1 on page 3.
Updated “Calibrated Internal RC Oscillator” on page 46.
Updated “Power Management and Sleep Modes” on page 52.
Updated note for Table 12-1 on page 68.
Updated Figure 26-9 on page 285 and Figure 26-10 on page 285.
Updated “Setting the Boot Loader Lock Bits by SPM” on page 325.
Updated “Ordering Information” on page 19.
Added Package information “100C1” on page 25.
10. Updated “Errata” on page 28.
10.7 Rev. 2549F-04/06
1.
Updated Figure 9-3 on page 29, Figure 9-4 on page 30 and Figure 1 on
page 30.
2.
3.
4.
Updated Table 20-2 on page 188 and Table 20-3 on page 188.
Updated Features in “ADC – Analog to Digital Converter” on page 275.
Updated “Fuse Bits” on page 338.
26
ATmega640/1280/1281/2560/2561
2549LS–AVR–08/07
ATMEL [ ATMEL ]
