TC74HCT138AF datasheet(4/8 Pages) TOSHIBA

部件名	TC74HCT138AF

功能描述	3-to-8 Line Decoder

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制造商	TOSHIBA [Toshiba Semiconductor]

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

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4 / 8 page

TC74HCT138AP/AF/AFN

2007-10-01

4

AC Characteristics (CL = 15 pF, VCC = 5 V, Ta = 25°C, input: tr = tf = 6 ns)

Characteristics

Symbol

Test Condition

Min

Typ.

Max

Unit

Output transition time

tTLH

tTHL

⎯

4

8

ns

Propagation delay time

(A, B, C- Y)

tpLH

tpHL

⎯

17

28

ns

Propagation delay time

(G1- Y)

tpLH

tpHL

⎯

15

25

ns

Propagation delay time

( 2

G- Y)

tpLH

tpHL

⎯

17

28

ns

AC Characteristics (CL = 50 pF, input: tr = tf = 6 ns)

Test Condition

Ta

= 25°C

Ta

= −40~85°C

Characteristics

Symbol

VCC (V)

Min

Typ.

Max

Min

Max

Unit

Output transition time

tTLH

tTHL

⎯

4.5

5.5

⎯

8

7

15

14

⎯

19

18

ns

Propagation delay

time

(A, B, C- Y)

tpLH

tpHL

⎯

4.5

5.5

⎯

21

18

33

30

⎯

44

40

ns

Propagation delay

time

(G1- Y)

tpLH

tpHL

⎯

4.5

5.5

⎯

19

17

30

27

⎯

38

34

ns

Propagation delay

time

( 2

G- Y)

tpLH

tpHL

⎯

4.5

5.5

⎯

22

20

33

30

⎯

41

37

ns

Input capacitance

CIN

⎯

5

10

⎯

10

pF

Power dissipation

capacitance

CPD

(Note)

⎯

55

⎯

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

类似零件编号 - TC74HCT138AF

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Toshiba Semiconductor	TC74HCT138AF	239Kb / 6P	3-TO-8 LINE DECODER
	TC74HCT138AFN	239Kb / 6P	3-TO-8 LINE DECODER
	TC74HCT138AF	236Kb / 7P	3-to-8 Line Decoder

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类似说明 - TC74HCT138AF

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