Rainbow-electronics ATmega161L Manual de usuario descargar pdf (Pagina 131)

131

ATmega161(L)

1228C–AVR–08/02

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

= 5V, 10 mA at V

= 3V) under steady-state

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

1] The sum of all I

, for all ports, should not exceed 200 mA.

2] The sum of all I

, for ports B0 - B7, D0 - D7 and XTAL2, should not exceed 100 mA.

3] The sum of all I

, for ports A0 - A7, ALE, OC1B and C0 - C7 should not exceed 100 mA.

If I

exceeds the test condition, V

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 (3 mA at V

=5V,1.5mAatV

= 3V) under steady-state

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

1] The sum of all I

, for all ports, should not exceed 200 mA.

2] The sum of all I

, for ports B0 - B7, D0 - D7 and XTAL2, should not exceed 100 mA.

3] The sum of all I

, for ports A0 - A7, ALE, OC1B and C0 - C7 should not exceed 100 mA.

DC Characteristics

=-40°Cto85°C, V

= 2.7V to 5.5V (unless otherwise noted)

(1)(2)(3)(4)(5)

Symbol Parameter Condition Min Typ Max Units

Input Low Voltage (Except XTAL1) -0.5 0.3 V

(1)

IL1

Input Low Voltage (XTAL1) -0.5 0.2 V

(1)

Input High Voltage (Except XTAL1, RESET)0.6V

(2)

+0.5 V

IH1

Input High Voltage (XTAL1) 0.8 V

(2)

+0.5 V

IH2

Input High Voltage (RESET)0.9V

(2)

+0.5 V

Output Low Voltage

(3)

(Ports A,B,C,D)

=20mA,V

=5V

=10mA,V

=3V

0.6

0.5

Output High Voltage

(4)

(Ports A,B,C,D)

=-3mA,V

=5V

=-1.5mA,V

=3V

4.2

2.3

Input Leakage

Current I/O pin

=5.5V,pinlow

(absolute value)

8.0 µA

Input Leakage

Current I/O pin

=5.5V,pinhigh

(absolute value)

980 nA

RRST Reset Pull-up Resistor 100 500 kΩ

I/O

I/O Pin Pull-up Resistor 35 120 kΩ

Power Supply Current

Active mode, V

=3V,

4MHz

3.0 mA

Idle mode V

=3V,

4MHz

1.2 mA

Power-down mode

(5)

WDT enabled, V

= 3V 9 15.0 µA

WDT disabled, V

=3V <1 2.0 µA

ACIO

Analog Comparator

Input Offset Voltage

=5V

40 mV

ACLK

Analog Comparator

Input Leakage Current

=5V

-50 50 nA

ACPD

Analog Comparator

Propagation Delay

=2.7V

=4.0V

750

500

1 2 ... 126 127 128 129 130 131 132 133 134 135 136 ... 158 159

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Rainbow-electronics ATmega161L Manual de usuario Pagina 131

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