M74HCT273RM13TR datasheet(4/10 Pages) STMICROELECTRONICS

No. de pieza	M74HCT273RM13TR

Descripción Electrónicos	OCTAL D TYPE FLIP FLOP WITH CLEAR

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M74HCT273

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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/8 (per FLIP

FLOP), and the total CPD when n pcs of FLIP FLOP operate can be gained by the following equations: CPD (total) = 32 + 11 x n

Symbol

Parameter

Test Conditions

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

9

151922

ns

tPLH tPHL Propagation Delay

Time

(CLOCK - Q)

4.5

19

30

38

45

ns

tPHL

Propagation Delay

Time

(CLEAR - Q)

4.5

22

32

40

48

ns

fMAX

Maximum Clock

Frequency

4.5

30

80

24

20

MHz

tW(H)

tW(L)

Minimum Pulse

(CLOCK)

4.5

7

151922

ns

tW(L)

Minimum Pulse

(CLEAR)

4.5

7

151922

ns

ts

Minimum Set-Up

Time

4.5

4

151922

ns

th

Minimum Hold

Time

4.5

0

ns

tREM

Minimum Removal

Time (CLEAR)

4.5

4

101315

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

5.0

5

101010

pF

CPD

Power Dissipation

Capacitance (note

1)

5.0

29

pF

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