ATMEGA640 datasheet(356/436 Pages) MICROCHIP

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356

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

DS40002211A

Notes: 1. "Max" means the highest value where the pin is guaranteed to be read as low.

2. "Min" means the lowest value where the pin is guaranteed to be read as high.

3. Although each I/O port can sink more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady state

conditions (non-transient), the following must be observed:

ATmega1281/2561:

1.)The sum of all IOL, for ports A0-A7, G2, C4-C7 should not exceed 100mA.

2.)The sum of all IOL, for ports C0-C3, G0-G1, D0-D7 should not exceed 100mA.

3.)The sum of all IOL, for ports G3-G5, B0-B7, E0-E7 should not exceed 100mA.

4.)The sum of all IOL, for ports F0-F7 should not exceed 100mA.

ATmega640/1280/2560:

1.)The sum of all IOL, for ports J0-J7, A0-A7, G2 should not exceed 200mA.

2.)The sum of all IOL, for ports C0-C7, G0-G1, D0-D7, L0-L7 should not exceed 200mA.

3.)The sum of all IOL, for ports G3-G4, B0-B7, H0-B7 should not exceed 200mA.

4.)The sum of all IOL, for ports E0-E7, G5 should not exceed 100mA.

5.)The sum of all IOL, for ports F0-F7, K0-K7 should not exceed 100mA.

If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater

than the listed test condition.

4. Although each I/O port can source more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady

state conditions (non-transient), the following must be observed:

ATmega1281/2561:

1)The sum of all IOH, for ports A0-A7, G2, C4-C7 should not exceed 100mA.

2)The sum of all IOH, for ports C0-C3, G0-G1, D0-D7 should not exceed 100mA.

3)The sum of all IOH, for ports G3-G5, B0-B7, E0-E7 should not exceed 100mA.

4)The sum of all IOH, for ports F0-F7 should not exceed 100mA.

ATmega640/1280/2560:

1)The sum of all IOH, for ports J0-J7, G2, A0-A7 should not exceed 200mA.

2)The sum of all IOH, for ports C0-C7, G0-G1, D0-D7, L0-L7 should not exceed 200mA.

3)The sum of all IOH, for ports G3-G4, B0-B7, H0-H7 should not exceed 200mA.

4)The sum of all IOH, for ports E0-E7, G5 should not exceed 100mA.

5)The sum of all IOH, for ports F0-F7, K0-K7 should not exceed 100mA.

ICC

Power Supply Current(5)

Active 1MHz, VCC = 2V

(ATmega640/1280/2560/1V)

0.5

0.8

Active 4MHz, VCC = 3V

(ATmega640/1280/2560/1L)

3.2

Active 8MHz, VCC = 5V

(ATmega640/1280/1281/2560/2561)

Idle 1MHz, VCC = 2V

(ATmega640/1280/2560/1V)

0.14

0.22

Idle 4MHz, VCC = 3V

(ATmega640/1280/2560/1L)

0.7

1.1

Idle 8MHz, VCC = 5V

(ATmega640/1280/1281/2560/2561)

2.7

Power-down mode

WDT enabled, VCC = 3V

µA

WDT disabled, VCC = 3V

7.5

VACIO

Analog Comparator

Input Offset Voltage

VCC = 5V

Vin = VCC/2

<10

IACLK

Analog Comparator

Input Leakage Current

VCC = 5V

Vin = VCC/2

-50

tACID

Analog Comparator

Propagation Delay

VCC = 2.7V

VCC = 4.0V

750

500

TA = -40C to 85C, VCC = 1.8V to 5.5V (unless otherwise noted) (Continued)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

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