74AC280M datasheet(4/8 Pages) STMICROELECTRONICS

Teilenummer	74AC280M

Bauteilbeschribung	9 BIT PARITY GENERATOR

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

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CAPACITIVE CHARACTERISTICS

Symb ol

Parameter

Test Co nditi ons

Valu e

Un it

VCC

(V)

TA =25

oC

-40 to 85

oC

Min.

T yp.

Max.

Mi n.

Max.

CIN

Input Capacitance

5.0

4

pF

CPD

Power Dissipation

Capacitance (note 1)

5.0

27

pF

1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto

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

• VCC • fIN +ICC

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

Ω, Input tr =tf =3 ns)

Symb ol

Parameter

T est Con ditio n

Valu e

Un it

VCC

(V)

TA =25

oC

-40 to 85

oC

Min.

T yp.

Max.

Mi n.

Max.

tPLH

tPHL

Propagation Delay Time

(Input -

ΣODD, ΣEVEN)

3.3

(*)

1.5

5

17.0

1

18.5

ns

5.0

(**)

1.5

4

13.0

1

14.5

(*) Voltage range is 3.3V

± 0.3V

(**) Voltage range is 5V

± 0.5V

DC SPECIFICATIONS

Symb ol

Parameter

Test Co nditi ons

Valu e

Un it

VCC

(V)

TA =25

oC

-40 to 85

oC

Min.

T yp.

Max.

Mi n.

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 attime

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

Ω.

(*) All outputs loaded.

74AC280

4/8

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