M74HCT74-1 datasheet(4/10 Pages) STMICROELECTRONICS

部件名	M74HCT74-1

功能描述	DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR

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制造商	STMICROELECTRONICS [STMicroelectronics]

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M74HCT74

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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)

CAPACITIVE CHARACTERISTICS

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/2 (per FLIP/

FLOP)

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25°C

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tTLH tTHL Output Transition

Time

4.5

8

151922

ns

tPLH tPHL Propagation Delay

Time (CLOCK-Q)

4.5

21

33

41

50

ns

tPLH tPHL Propagation Delay

Time (CL,PR - Q,Q)

4.5

18

30

38

45

ns

fMAX

Maximum Clock

Frequency

4.5

27

48

22

18

MHz

tW(H)

tW(L)

Minimum Pulse

Width (CLOCK)

4.5

6

151923

ns

tW(L)

Minimum Pulse

Width (CLR, PR)

4.5

8

151923

ns

ts

Minimum Set-Up

Time

4.5

7

151923

ns

th

Minimum Hold

Time

4.5

0

ns

tREM

Minimum Removal

Time (CLR, PR to

CLOCK)

4.5

155658

ns

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25°C

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

CIN

Input Capacitance

5

101010

pF

CPD

Power Dissipation

Capacitance (note

1)

32

pF

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类似说明 - M74HCT74-1

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