M74HCT174M1R(1993) 查看數據表（PDF） - STMicroelectronics

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M74HCT174M1R
(Rev.:1993)

HEX D-TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

M54/M74HCT174

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

tPLH Propagation

4.5

tPHL Delay Time

(CK - Q)

8

15

19

22

ns

18 28

35

ns

tPHL Propagation

4.5

Delay Time

(CLR - Q)

18 28

35

42

ns

fMAX Maximum Clock 4.5

Frequency

30 54

24

MHz

tW(H) Minimum Pulse 4.5

tW(L) Width

(CLOCK)

8

15

19

22

ns

tW(L) Minimum Pulse 4.5

Width

(CLR)

8

15

19

22

ns

ts

Minimum Set-up 4.5

Time

2

10

13

15

ns

th

Minimum Hold

4.5

Time

5

6

8

ns

tREM Minimum

4.5

Removal Time

5

5

5

5

ns

CIN Input Capacitance

5

10

10

10 pF

CPD (*) Power Dissipation

68

Capacitance

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/6 (per FLIP/FLOP)

And the total CPD when N pcs of FLIP FLOP operate can be gained by the following equation: CPD (total)= 38 + 15 x n

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