TC74VHC139FN datasheet(4/9 Pages) TOSHIBA

Il numero della parte	TC74VHC139FN

Spiegazioni elettronici	Dual 2-to-4 Line Decoder

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Produttore elettronici	TOSHIBA [Toshiba Semiconductor]

Homepage	http://www.semicon.toshiba.co.jp/eng

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4 / 9 page

TC74VHC139F/FN/FT/FK

2008-05-01

4

AC Characteristics (input: tr = tf = 3 ns)

Test Condition

Ta

= 25°C

Ta

= −40 to 85°C

Characteristics

Symbol

VCC (V)

CL (pF)

Min

Typ.

Max

Min

Max

Unit

15

⎯

7.2

11.0

1.0

13.0

3.3

± 0.3

50

⎯

9.7

14.5

1.0

16.5

15

⎯

5.0

7.2

1.0

8.5

Propagation delay

time

(A, B-Y)

tpLH

tpHL

⎯

5.0

± 0.5

50

⎯

6.5

9.2

1.0

10.5

ns

15

⎯

6.4

9.2

1.0

11.0

3.3

± 0.3

50

⎯

8.9

12.7

1.0

14.5

15

⎯

4.4

6.3

1.0

7.5

Propagation delay

time

( G-Y)

tpLH

tpHL

⎯

5.0

± 0.5

50

⎯

5.9

8.3

1.0

9.5

ns

Input capacitance

CIN

⎯

4

10

⎯

10

pF

Power dissipation

capacitance

CPD

(Note)

⎯

26

⎯

pF

Note: 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/2 (per decoder)

Input Equivalent Circuit

INPUT

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