74LVQ374QSC datasheet(4/7 Pages) FAIRCHILD

部品番号	74LVQ374QSC

部品情報	Low Voltage Octal D-Type Flip-Flop with 3-STATE Outputs

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AC Electrical Characteristics

Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The

specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by design.

AC Operating Requirements

Capacitance

Note 10: CPD is measured at 10 MHz.

TA = +25°CTA = −40°C to +85°C

Symbol

Parameter

VCC

CL = 50 pF

Units

(V)

Min

Typ

Max

Min

Max

fMAX

Maximum Clock Frequency

2.7

55

50

MHz

3.3

± 0.3

75

70

tPLH

Propagation Delay

2.7

3.0

11.4

18.3

3.0

19.0

ns

tPHL

CP to On

3.3

± 0.3

3.0

9.5

13.0

3.0

13.5

tPZL

Output Enable Time

2.7

3.0

11.4

18.3

3.0

19.0

ns

tPZH

3.3

± 0.3

3.0

9.5

13.0

3.0

13.5

tPHZ

Output Disable Time

2.7

1.0

11.4

20.4

1.0

21.0

ns

tPLZ

3.3

± 0.3

1.0

9.5

14.5

1.0

15.0

tOSHL

Output to Output Skew (Note 9)

2.7

1.0

1.5

ns

tOSLH

CP to On

3.3

± 0.3

1.0

1.5

TA = +25°CTA = 40°C− to +85°C

Symbol

Parameter

VCC

CL = 50 pF

Units

(V)

Typ

Guaranteed Minimum

tS

Setup Time, HIGH or LOW

2.7

0

4.0

4.5

ns

Dn to CP

3.3

± 0.3

0

3.0

tH

Hold Time, HIGH or LOW

2.7

0

1.5

ns

Dn to CP

3.3

± 0.3

0

1.5

tW

CP Pulse Width,

2.7

2.4

5.0

6.0

ns

HIGH or LOW

3.3

± 0.3

2.0

4.0

Symbol

Parameter

Typ

Units

Conditions

CIN

Input Capacitance

4.5

pF

VCC = Open

CPD (Note 10)

Power Dissipation Capacitance

39

pF

VCC = 3.3V

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