74AC20M datasheet(3/7 Pages) STMICROELECTRONICS

No. de pieza	74AC20M

Descripción Electrónicos	DUAL 4-INPUT NAND GATE

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DC SPECIFICATIONS

Symbol

Parameter

Test Con dition s

Value

Unit

VCC

(V)

TA =25

oC-40 to 85 oC

Mi n.

Typ.

Max.

Min .

Max.

VIH

High Level Input Voltage

3.0

VO = 0.1 V or

VCC - 0.1 V

2.1

1.5

2.1

V

4.5

3.15

2.25

3.15

5.5

3.85

2.75

3.85

VIL

Low Level Input Voltage

3.0

VO = 0.1 V or

VCC - 0.1 V

1.5

0.9

V

4.5

2.25

1.35

5.5

2.75

1.65

VOH

High Level Output

Voltage

3.0

VI

(*) =

VIH or

VIL

IO=-50

µA

2.9

2.99

2.9

V

4.5

IO=-50

µA

4.4

4.49

4.4

5.5

IO=-50

µA

5.4

5.49

5.4

3.0

IO=-12 mA

2.56

2.46

4.5

IO=-24 mA

3.86

3.76

5.5

IO=-24 mA

4.86

4.76

VOL

Low Level Output

Voltage

3.0

VI

(*) =

VIH or

VIL

IO=50

µA

0.002

0.1

V

4.5

IO=50

µA

0.001

0.1

5.5

IO=50

µA

0.001

0.1

3.0

IO=12 mA

0.36

0.44

4.5

IO=24 mA

0.36

0.44

5.5

IO=24 mA

0.36

0.44

II

Input Leakage Current

5.5

VI =VCC or GND

±0.1

±1

µA

ICC

Quiescent Supply

Current

5.5

VI =VCC or GND

4

40

µA

IOLD

Dynamic Output Current

(note 1, 2)

5.5

VOLD = 1.65 V max

75

mA

IOHD

VOHD = 3.85 V min

-75

mA

1) Maximum test duration 2ms, one output loaded at time

2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50

Ω.

(*) All outputs loaded.

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

Test Con dition s

Value

Unit

VCC

(V)

TA =25

oC-40 to 85 oC

Mi n.

Typ.

Max.

Min .

Max.

CIN

Input Capacitance

5.0

4.5

pF

CPD

Power Dissipation

Capacitance (note 1)

5.0

40

pF

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to

Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD

• VCC •fIN +ICC/n (per circuit)

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500

Ω, Input tr =tf =3 ns)

Symbol

Parameter

T est Cond iti on

Value

Unit

VCC

(V)

TA =25

oC-40 to 85 oC

Mi n.

Typ.

Max.

Min .

Max.

tPLH

tPHL

Propagation Delay Time

3.3

(*)

1.5

5.0

7.0

1.0

9.0

ns

5.0

(**)

1.5

4.0

6.0

1.0

7.0

(*) Voltage range is 3.3V

± 0.3V

(**) Voltage range is 5V

± 0.5V

74AC20

3/7

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