DM74LS393 datasheet(3/6 Pages) FAIRCHILD

부품명	DM74LS393

상세설명	Dual 4-Bit Binary Counter

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Absolute Maximum Ratings(Note 1)

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

Note 2: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.

Note 3: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.

Note 4: The symbol (

↓) indicates that the falling edge of the clear pulse is used for reference.

Note 5: TA = 25°C, and VCC = 5V.

Electrical Characteristics

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

Note 6: All typicals are at VCC = 5V, TA = 25°C.

Note 7: Not more than one output should be shorted at a time, and the duration should not exceed one second.

Note 8: ICC is measured with all outputs open, both CLEAR inputs grounded following momentary connection to 4.5V, and all other inputs grounded.

Supply Voltage

7V

Input Voltage

Clear

7V

A5.5V

Operating Free Air Temperature Range

0

°C to +70°C

Storage Temperature Range

−65°C to +150°C

Symbol

Parameter

Min

Nom

Max

Units

VCC

Supply Voltage

4.75

5

5.25

V

VIH

HIGH Level Input Voltage

2

V

VIL

LOW Level Input Voltage

0.8

V

IOH

HIGH Level Output Current

−0.4

mA

IOL

LOW Level Output Current

8

mA

fCLK

Clock Frequency (Note 2)

0

25

MHz

fCLK

Clock Frequency (Note 3)

0

20

MHz

tW

Pulse Width (Note 5)

A

20

ns

Clear HIGH

20

tREL

Clear Release Time (Note 4)(Note 5)

25

↓

ns

TA

Free Air Operating Temperature

0

70

°C

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 6)

VI

Input Clamp Voltage

VCC = Min, II = −18 mA

−1.5

V

VOH

HIGH Level

VCC = Min, IOH = Max

2.7

3.4

V

Output Voltage

VIL = Max, VIH = Min

VOL

LOW Level

VCC = Min, IOL = Max

0.35

0.5

Output Voltage

VIL = Max, VIH = Min

V

IOL = 4 mA, VCC = Min

0.25

0.4

II

Input Current @ Max

VCC = Max, VI = 7V

Clear

0.1

mA

Input Voltage

VCC = Max, VI = 5.5V

A

0.2

IIH

HIGH Level

VCC = Max, VI = 2.7V

Clear

20

µA

Input Current

A

40

IIL

LOW Level

VCC = Max, VI = 0.4V

Clear

−0.4

mA

Input Current

A

−1.6

IOS

Short Circuit Output Current

VCC = Max (Note 7)

−20

−100

mA

ICC

Supply Current

VCC = Max (Note 8)

15

26

mA

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