74VHC393SJ datasheet(6/10 Pages) FAIRCHILD

部件名	74VHC393SJ

功能描述	Dual 4-Bit Binary Counter

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制造商	FAIRCHILD [Fairchild Semiconductor]

网页	http://www.fairchildsemi.com

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74VHC393 Rev. 1.4

6

AC Electrical Characteristics

Note:

3. 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 / 2 (per Counter)

AC Operating Requirements

Symbol

Parameter

VCC (V)

Conditions

TA = 25°C

TA = –40°C to

+85°C

Units

Min.

Typ.

Max.

Min.

Max.

tPLH, tPHL

Propagation Delay

Time (CP–QA)

3.3 ± 0.3

CL = 15pF

8.6

13.2

1.0

15.5

ns

CL = 50pF

11.1

16.7

1.0

19.0

5.0 ± 0.5

CL = 15pF

5.8

8.5

1.0

10.0

CL = 50pF

7.3

10.5

1.0

12.0

tPLH, tPHL

Propagation Delay

Time (CP–QB)

3.3 ± 0.3

CL = 15pF

10.2

15.8

1.0

18.5

ns

CL = 50pF

12.7

19.3

1.0

22.0

5.0 ± 0.5

CL = 15pF

6.8

9.8

1.0

11.5

CL = 50pF

8.3

11.8

1.0

13.5

tPLH, tPHL

Propagation Delay

Time (CP–QC)

3.3 ± 0.3

CL = 15pF

11.7

18.0

1.0

21.0

ns

CL = 50pF

14.2

21.5

1.0

24.5

5.0 ± 0.5

CL = 15pF

7.7

11.2

1.0

13.0

CL = 50pF

9.2

13.2

1.0

15.0

tPLH, tPHL

Propagation Delay

Time (CP–QD)

3.3 ± 0.3

CL = 15pF

13.0

19.7

1.0

23.0

ns

CL = 50pF

15.5

23.2

1.0

26.5

5.0 ± 0.5

CL = 15pF

8.5

12.5

1.0

14.5

CL = 50pF

10.0

14.5

1.0

16.5

tPLH, tPHL

Propagation Delay

Time (CLR–Qn)

3.3 ± 0.3

CL = 15pF

7.9

12.3

1.0

14.5

ns

CL = 50pF

10.4

15.8

1.0

18.0

5.0 ± 0.5

CL = 15pF

5.4

8.1

1.0

9.5

CL = 50pF

6.9

10.1

1.0

11.5

fMAX

Maximum Clock

3.3 ± 0.3

CL = 15pF

75

120

65

MHz

CL = 50pF

45

65

35

5.0 ± 0.5

CL = 15pF

125

170

105

CL = 50pF

85

115

75

CIN

Input Capacitance

VCC = Open

4

10

pF

CPD

Power Dissipation

Capacitance

(3)

23

pF

Symbol

Parameter

VCC (V)

TA = 25°C

T A = – 40°C to +85°C

Units

Typ.

Guaranteed Minimum

tW(L), tW(H)

Minimum Pulse Width (CP)

3.3 ± 0.3

5.0

ns

5.0 ± 0.5

5.0

tW(H)

Minimum Pulse Width (CLR)

3.3 ± 0.3

5.0

ns

5.0 ± 0.5

5.0

tREM

Minimum Removal Time

3.3 ± 0.3

5.0

ns

5.0 ± 0.5

4.0

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