M74HCT273 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

M74HCT273

OCTAL D TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

M54/M74HCT273

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

Symbol

Parameter

Test Conditions

VCC

(V)

TA = 25 oC

54HC and 74HC

Value

-40 to 85 oC -55 to 125 oC Unit

74HC

54HC

Min. Typ. Max. Min. Max. Min. Max.

tTLH Output Transition 4.5

tTHL Time

9

15

19

22

ns

tPLH Propagation

4.5

tPHL Delay Time

(CLOCK - Q)

19 30

38

45

ns

tPLH Propagation

4.5

tPHL Delay Time

(CLEAR - Q)

22 32

40

48

ns

fMAX Maximum Clock 4.5

Frequency

30 71

24

MHz

CIN

CPD (*)

Input Capacitance

Power Dissipation

Capacitance

5

10

10

10 pF

29

pF

(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •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

SWITCHING CHARACTERISTICS TEST WAVEFORM

TEST CIRCUIT ICC (Opr.)

5/10

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