MC74VHC157M datasheet(4/7 Pages) ONSEMI

No. de pieza	MC74VHC157M

Descripción Electrónicos	Quad 2--Channel Multiplexer

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MC74VHC157

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4

DC CHARACTERISTICS (Voltages Referenced to GND)

VCC

TA =25_C

TA ≤85_C

--55_C ≤TA≤125_C

Symbol

Parameter

Condition

(V)

Min

Typ

Max

Min

Max

Min

Max

Unit

VIH

High--Level

Input Voltage

2.0

3.0to5.5

1.5

0.7 VCC

1.5

0.7 VCC

1.5

0.7 VCC

V

VIL

Low--Level

Input Voltage

2.0

3.0to5.5

0.5

0.3 VCC

0.5

0.3 VCC

0.5

0.3 VCC

V

VOH

High--Level

Output Voltage

VIN =VIH or VIL

IOH =--50 mA

2.0

3.0

4.5

1.9

2.9

4.4

2.0

3.0

4.5

1.9

2.9

4.4

1.9

2.9

4.4

V

VIN =VIH or VIL

IOH =--4 mA

IOH =--8 mA

3.0

4.5

2.58

3.94

2.48

3.8

2.34

3.66

VOL

Low--Level

Output Voltage

VIN =VIH or VIL

IOL =50 mA

2.0

3.0

4.5

0.0

0.1

V

VIN =VIH or VIL

IOH =4mA

IOH =8mA

3.0

4.5

0.36

0.44

0.52

IIN

Input Leakage

Current

VIN =5.5 Vor

GND

0to5.5

±0.1

±1.0

mA

ICC

Quiescent

Supply Current

VIN =VCC or

GND

5.5

4.0

40.0

mA

AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3.0 ns)

TA =25_C

TA ≤85_C

--55_C ≤TA≤125_C

Symbol

Characteristic

Test Conditions

Min

Typ

Max

Typ

Max

Typ

Max

Unit

tPLH,

tPHL

Propagation Delay,

AtoBto Y

VCC =3.3 ± 0.3 V

CL =15pF

CL =50pF

6.2

8.7

9.7

13.2

1.0

11.5

15.0

1.0

11.5

15.0

ns

VCC =5.0 ± 0.5 V

CL =15pF

CL =50pF

4.1

5.6

6.4

8.4

1.0

7.5

9.5

1.0

7.5

9.5

tPLH,

tPHL

Propagation Delay,

StoY

VCC =3.3 ± 0.3 V

CL =15pF

CL =50pF

8.4

10.9

13.2

16.7

1.0

15.5

19.0

1.0

15.5

19.0

ns

VCC =5.0 ± 0.5 V

CL =15pF

CL =50pF

5.3

6.8

8.1

10.1

1.0

9.5

11.5

1.0

9.5

11.5

tPLH,

tPHL

Propagation Delay,

E to Y

VCC =3.3 ± 0.3 V

CL =15pF

CL =50pF

8.7

11.2

13.6

17.1

1.0

16.0

19.5

1.0

16.0

19.5

ns

VCC =5.0 ± 0.5 V

CL =15pF

CL =50pF

5.6

7.1

8.6

10.6

1.0

10.0

12.0

1.0

10.0

12.0

CIN

Input Capacitance

4

10

pF

Typical @ 25_C, VCC =5.0 V

CPD

Power Dissipation Capacitance (Note 7)

20

pF

7. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.

Average operating current can be obtained by the equation: ICC(OPR) =CPD ¯ VCC ¯ fin +ICC.CPD is used to determine the no--load dynamic

power consumption: PD =CPD ¯ VCC2 ¯ fin +ICC ¯ VCC.

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