Datasheet

27
2570NS–AVR–05/11
ATmega325/3250/645/6450
12.6 Rev. 2570I – 07/06
12.7 Rev. 2570H – 06/06
12.8 Rev. 2570G – 04/06
12.9 Rev. 2570F – 03/06
12.10 Rev. 2570E – 03/06
1. Updated Table 15-6 on page 92.
2. Updated Table 15-2 on page 97, Table 15-4 on page 97, Table 17-3 on page
124, Table 17-5 on page 125, Table 18-2 on page 143 and Table 18-4 on page
144.
3. Updated “Fast PWM Mode” on page 115.
4. Updated Features in “USI – Universal Serial Interface” on page 185.
5. Added “Clock speed considerations.” on page 191.
6. Updated “Errata” on page 24.
1. Updated “Calibrated Internal RC Oscillator” on page 29.
2. Updated “OSCCAL – Oscillator Calibration Register” on page 32.
3. Added Table 28-2 on page 300.
1. Updated “Calibrated Internal RC Oscillator” on page 29.
1. Updated “Errata” on page 24.
1. Added Addresses in Register Descriptions.
2. Updated number of Genearl Purpose I/O pins.
3. Correction of Bitnames in “Register Summary” on page 10.
4. Added “Resources” on page 9.
5. Updated “Power Management and Sleep Modes” on page 35.
6. Updated “Bit 0 – IVCE: Interrupt Vector Change Enable” on page 54.
7. Updated Introduction in “I/O-Ports” on page 60.
8. Updated 19.“SPI – Serial Peripheral Interface” on page 148.
9. Updated “Bit 6 – ACBG: Analog Comparator Bandgap Select” on page 199.
10 Updated Features in “Analog to Digital Converter” on page 201.
11. Updated “Prescaling and Conversion Timing” on page 204.
12. Updated “Atmel ATmega325/3250/645/6450 Boot Loader Parameters” on page
262.
13. Updated “DC Characteristics” on page 297.