ATmega128 datasheet(319/386 Pages) ATMEL

319 / 386 page

319

2467S–AVR–07/09

ATmega128

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 (20 mA at V

CC = 5V, 10 mA at VCC = 3V) under steady state

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

TQFP and QFN/MLF Package:

1] The sum of all IOL, for all ports, should not exceed 400 mA.

2] The sum of all IOL, for ports A0 - A7, G2, C3 - C7 should not exceed 100 mA.

3] The sum of all IOL, for ports C0 - C2, G0 - G1, D0 - D7, XTAL2 should not exceed 100 mA.

4] The sum of all IOL, for ports B0 - B7, G3 - G4, E0 - E7 should not exceed 100 mA.

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

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 (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady state

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

TQFP and QFN/MLF Package:

1] The sum of all IOH, for all ports, should not exceed 400 mA.

2] The sum of all IOH, for ports A0 - A7, G2, C3 - C7 should not exceed 100 mA.

3] The sum of all IOH, for ports C0 - C2, G0 - G1, D0 - D7, XTAL2 should not exceed 100 mA.

4] The sum of all IOH, for ports B0 - B7, G3 - G4, E0 - E7 should not exceed 100 mA.

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

If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current

greater than the listed test condition.

ICC

Power Supply Current

Active 4 MHz, VCC = 3V

(ATmega128L)

55.5

Active 8 MHz, VCC = 5V

(ATmega128)

Idle 4 MHz, VCC = 3V

(ATmega128L)

22.5

Idle 8 MHz, VCC = 5V

(ATmega128)

811

Power-down mode

WDT enabled, VCC = 3V

< 15

µA

WDT disabled, VCC = 3V

< 5

µA

VACIO

Analog Comparator

Input Offset Voltage

VCC = 5V

Vin = VCC/2

IACLK

Analog Comparator

Input Leakage Current

VCC = 5V

Vin = VCC/2

-50

tACPD

Analog Comparator

Propagation Delay

VCC = 2.7V

VCC = 5.0V

750

500

A = -40°C to 85°C, VCC = 2.7V to 5.5V (unless otherwise noted) (Continued)

Symbol

Parameter

Condition

Min

Typ

Max

Units

ATmega128 Datasheet(PDF) 319 Page - ATMEL Corporation

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