MC74LVX74_14 datasheet(3/7 Pages) ONSEMI

Part #	MC74LVX74

Description	Dual D-Type Flip-Flop with Set and Clear

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MC74LVX74

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AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)

Symbol

Parameter

Test Conditions

TA = 25°C

TA = −40 to 85°C

Unit

Min

Typ

Max

Min

Max

tPLH,

tPHL

Propagation Delay

CP to O or O

VCC = 2.7V

CL = 15pF

CL = 50pF

7.3

9.8

15.0

18.5

1.0

18.5

22.0

ns

VCC = 3.3 ± 0.3V

CL = 15pF

CL = 50pF

5.7

8.2

9.7

13.2

1.0

11.5

15.0

tPLH,

tPHL

Propagation Delay

SD or CD to O or O

VCC = 2.7V

CL = 15pF

CL = 50pF

8.4

10.9

15.6

19.1

1.0

18.5

22.0

ns

VCC = 3.3 ± 0.3V

CL = 15pF

CL = 50pF

6.6

9.1

10.1

13.6

1.0

12.0

15.5

fmax

Maximum Clock Frequency

(50% Duty Cycle)

VCC = 2.7V

CL = 15pF

CL = 50pF

55

45

135

60

50

40

MHz

VCC = 3.3 ± 0.3V

CL = 15pF

CL = 50pF

95

60

145

85

80

50

tOSHL

tOSLH

Output−to−Output Skew

(Note 1)

VCC = 2.7V

CL = 50pF

VCC = 3.3 ±0.3V

CL = 50pF

1.5

ns

1. 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.

TIMING REQUIREMENTS (Input tr = tf = 3.0ns)

Symbol

Parameter

VCC

V

Guaranteed Limit

Unit

TA = 25_C

TA = −40 to 85_C

tw

Minimum Pulse Width, CP

2.7V

3.3V

±0.3

8.5

6.0

10.0

7.0

ns

tw

Minimum Pulse Width, CD or SD

2.7V

3.3V

±0.3

8.5

6.0

10.0

7.0

ns

tsu

Minimum Setup Time, D to CP

2.7V

3.3V

±0.3

8.0

5.5

9.5

6.5

ns

th

Minimum Hold Time, D to CP

2.7V

3.3V

±0.3

0.5

ns

trec

Minimum Recovery Time, SD or CD to CP

2.7V

3.3V

±0.3

6.5

5.0

7.5

5.0

ns

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

TA = 25°C

TA = −40 to 85°C

Unit

Min

Typ

Max

Min

Max

Cin

Input Capacitance

4

10

pF

CPD

Power Dissipation Capacitance (Note 2)

25

pF

2. 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 flip−flop). CPD is used to determine the

no−load dynamic power consumption; PD = CPD VCC2 fin + ICC VCC.

NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 3.3V, Measured in SOIC Package)

Symbol

Characteristic

TA = 25°C

Unit

Typ

Max

VOLP

Quiet Output Maximum Dynamic VOL

0.3

0.5

V

VOLV

Quiet Output Minimum Dynamic VOL

−0.3

−0.5

V

VIHD

Minimum High Level Dynamic Input Voltage

2.0

V

VILD

Maximum Low Level Dynamic Input Voltage

0.8

V

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