ATMEGA640 datasheet(417/436 Pages) MICROCHIP

417 / 436 page

417

ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET]

DS40002211A

Problem Fix/Workaround

None.

2. High current consumption in sleep mode

If a pending interrupt cannot wake the part up from the selected sleep mode, the current consumption will

increase during sleep when executing the SLEEP instruction directly after a SEI instruction.

Problem Fix/Workaround

Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled.

37.5 ATmega1281 rev. B

• High current consumption in sleep mode

1. High current consumption in sleep mode

If a pending interrupt cannot wake the part up from the selected sleep mode, the current consumption will

increase during sleep when executing the SLEEP instruction directly after a SEI instruction.

Problem Fix/Workaround

Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled.

37.6 ATmega1281 rev. A

• Inaccurate ADC conversion in differential mode with 200× gain

• High current consumption in sleep mode

Inaccurate ADC conversion in differential mode with 200× gain

With AVCC <3.6V, random conversions will be inaccurate. Typical absolute accuracy may reach 64 LSB.

Problem Fix/Workaround

None.

2. High current consumption in sleep mode

If a pending interrupt cannot wake the part up from the selected sleep mode, the current consumption will

increase during sleep when executing the SLEEP instruction directly after a SEI instruction.

Problem Fix/Workaround

Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled.

37.7 ATmega2560 rev. F

• ADC differential input amplification by 46dB (200x) not functional

1. ADC differential input amplification by 46dB (200x) not functional

Problem Fix/Workaround

None.

37.8 ATmega2560 rev. E

No known errata.

37.9 ATmega2560 rev. D

Not sampled.

ATMEGA640 Datasheet(PDF) 417 Page - Microchip Technology