Diodes 74AHC14 Manuel d'utilisateur télécharger pdf (Page 3)

74AHC14

Document number: DS35342 Rev 3 - 2

3 of 8

www.diodes.com

January 2013

© Diodes Incorporated

NEW PRODUCT

74AHC14

Recommended Operating Conditions (Note 5) @T

A

= +25°C, unless otherwise specified.)

Symbol Parameter Conditions Min Max Unit

V

CC

Supply Voltage 2.0 5.5 V

V

I

Input Voltage 0 5.5 V

V

O

Output Voltage 0

V

CC

V

T

A

Operating Free-Air Temperature -40 +125 °C

Note: 5. Unused inputs should be held at V

CC

or Ground.

Electrical Characteristics (@T

A

= +25°C, unless otherwise specified.)

Symbol Parameter Test Conditions

V

CC

T

A

= -40°C to +85°C T

A

= -40°C to +125°C

Unit

Min Max Min Max

V

T+

Positive-Going

Input Threshold

Voltage

3V 2.2 2.2

V

4.5V 3.15 3.15

5.5V 3.85 3.85

V

T-

Negative-Going

Input Threshold

Voltage

3V 0.9 0.9

V

4.5V 1.35 1.35

5.5V 1.65 1.65

∆V

T

Hysteresis

(V

T+

- V

T-)

3V 0.3 1.2 0.25 1.2

V

4.5V 0.4 1.4 0.35 1.4

5.5V 0.5 1.6 0.45 1.6

V

OH

High Level Output

Voltage

I

OH

= -50μA

2.0V 1.9 1.9

V

I

OH

= -50μA

3.0V 2.9 2.9

I

OH

= -50μA

4.5V 4.4 4.4

I

OH

= -4mA

3.0V 2.48 2.40

I

OH

= -8mA

4.5V 3.80 3.70

V

OL

Low-level Output

Voltage

I

OL

= 50μA

2.0V 0.1 0.1

V

I

OL

= 50μA

3.0V 0.1 0.1

I

OL

= 50μA

4.5V 0.1 0.1

I

OL

= 4mA

3.0V 0.44 0.55

I

OL

= 8mA

4.5V 0.44 0.55

I

I

Input Current

V

I

= GND to 5.5V

3.6V ±1 ±2 μA

I

CC

Supply Current

V

I

= GND or V

CC,

I

O

= 0

3.6V 20 40 μA

Operating Characteristics

Parameter

Test

Conditions

V

CC

= 2.0V V

CC

= 3.3V V

CC

= 5V

Unit

Typ Typ Typ

C

pd

Power Dissipation

Capacitance per Gate

f = 1MHz 10.4 12.3 13 pF

C

i

Input Capacitance

V

i

= V

CC

– or GND

4.0 4.0 4.0 pF

1 2 3 4 5 6 7 8

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