74LCX74M datasheet(4/11 Pages) FAIRCHILD

Il numero della parte	74LCX74M

Spiegazioni elettronici	Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop with 5V Tolerant Inputs

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Produttore elettronici	FAIRCHILD [Fairchild Semiconductor]

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AC Electrical Characteristics

Note 6: 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).

Dynamic Switching Characteristics

Capacitance

Symbol

Parameter

TA 40qC to 85qC, RL 500:

Units

VCC 3.3V r 0.3V

VCC 2.7V

VCC 2.5V r 0.2V

CL 50 pF

CL 30 pF

Min

Max

Min

Max

Min

Max

fMAX

Maximum Clock Frequency

150

MHz

tPHL

Propagation Delay

1.5

7.0

1.5

8.0

1.5

8.4

ns

tPLH

CPn to Qn or Qn

1.57.0

1.58.0

1.58.4

tPHL

Propagation Delay

1.5

7.0

1.5

8.0

1.5

8.4

ns

tPLH

CDn or SDn to Qn or Qn

1.57.0

1.58.0

1.58.4

tS

Setup Time

2.5

4.0

ns

tH

Hold Time

1.5

2.0

ns

tW

Pulse Width CP

3.3

4.0

ns

tW

Pulse Width and CD, SD

3.3

3.6

4.0

ns

tREC

Recovery Time

2.5

3.0

4.5

ns

tOSHL

Output to Output Skew

1.0

ns

tOSLH

(Note 6)

1.0

Symbol

Parameter

Conditions

VCC

(V)

TA 25qC

Unit

Typical

VOLP

Quiet Output Dynamic Peak VOL

CL 50 pF, VIH 3.3V, VIL 0V

3.3

0.8

V

CL 30 pF, VIH 2.5V, VIL 0V

2.5

0.6

VOLV

Quiet Output Dynamic Peak VOL

CL 50 pF, VIH 3.3V, VIL 0V

3.3

0.8

V

CL 30 pF, VIH 2.5V, VIL 0V

2.5

0.6

Symbol

Parameter

Conditions

Typical

Units

CIN

Input Capacitance

VCC Open, VI 0V or VCC

7pF

COUT

Output Capacitance

VCC 3.3V, VI 0V or VCC

8pF

CPD

Power Dissipation Capacitance

VCC 3.3V, VI 0V or VCC, f 10 MHz

25

pF

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