DM74157 Ver la hoja de datos (PDF) - Fairchild Semiconductor

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DM74157

Quad 2-Line to 1-Line Data Selectors/Multiplexer

Fairchild Semiconductor 

Absolute Maximum Ratings(Note 1)

Supply Voltage

Input Voltage

Operating Free Air Temperature Range

Storage Temperature Range

7V

5.5V

0°C to +70°C

−65°C to +150°C

Note 1: The “Absolute Maximum Ratings” are those values beyond which

the safety of the device cannot be guaranteed. The device should not be

operated at these limits. The parametric values defined in the Electrical

Characteristics tables are not guaranteed at the absolute maximum ratings.

The “Recommended Operating Conditions” table will define the conditions

for actual device operation.

Recommended Operating Conditions

Symbol

Parameter

Min

VCC

Supply Voltage

4.75

VIH

HIGH Level Input Voltage

2

VIL

LOW Level Input Voltage

IOH

HIGH Level Output Current

IOL

LOW Level Output Current

TA

Free Air Operating Temperature

0

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted)

Symbol

Parameter

Conditions

Nom

5

VI

Input Clamp Voltage

VCC = Min, II = −12 mA

VOH

HIGH Level

VCC = Min, IOH = Max

Output Voltage

VIL = Max, VIH = Min

VOL

LOW Level

VCC = Min, IOL = Max

Output Voltage

VIH = Min, VIL = Max

II

Input Current @ Max Input Voltage

VCC = Max, VI = 5.5V

IIH

HIGH Level Input Current

VCC = Max, VI = 2.4V

IIL

LOW Level Input Current

VCC = Max, VI = 0.4V

IOS

Short Circuit Output Current

VCC = Max (Note 3)

ICC

Supply Current

VCC = Max (Note 4)

Note 2: All typicals are at VCC = 5V, TA = 25°C.

Note 3: Not more than one output should be shorted at a time.

Note 4: ICC is measured with 4.5V applied to all inputs and all outputs OPEN.

Switching Characteristics

at VCC = 5V and TA = 25°C

Symbol

Parameter

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

From (Input)

To (Output)

Data to Y

Data to Y

Strobe to Y

Strobe to Y

Select to Y

Select to Y

Max

Units

5.25

V

V

0.8

V

−0.8

mA

16

mA

70

°C

Typ

Min

Max

(Note 2)

−1.5

2.4

3.4

0.4

1

40

−1.6

−18

−55

30

48

Units

V

V

V

mA

µA

mA

mA

mA

RL = 400Ω, CL = 15 pF

Min

Max

14

Units

ns

14

ns

20

ns

21

ns

23

ns

27

ns

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