74LV74A datasheet(6/16 Pages) TI

Nome de Peças	74LV74A

Descrição Electrónicos	DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS

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Fabricante Electrônico	TI [Texas Instruments]

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SN54LV74A, SN74LV74A

DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS

SCLS381L − AUGUST 1997 − REVISED APRIL 2005

6

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

switching

characteristics

over

recommended

operating

free-air

temperature

range,

VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV74A

SN74LV74A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

80*

140*

70*

70

MHz

fmax

CL = 50 pF

50

90

45

MHz

tpd

PRE or CLR

Q or Q

CL = 15 pF

6.9*

12.3*

1*

14.5*

1

14.5

ns

tpd

CLK

Q or Q

CL = 15 pF

7.9*

11.9*

1*

14*

1

14

ns

tpd

PRE or CLR

Q or Q

CL = 50 pF

9.2

15.8

1

18

1

18

ns

tpd

CLK

Q or Q

CL = 50 pF

10.2

15.4

1

17.5

1

17.5

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

switching

characteristics

over

recommended

operating

free-air

temperature

range,

VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV74A

SN74LV74A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

130*

180*

110*

110

MHz

fmax

CL = 50 pF

90

140

75

MHz

tpd

PRE or CLR

Q or Q

CL = 15 pF

5*

7.7*

1*

9*

1

9

ns

tpd

CLK

Q or Q

CL = 15 pF

5.6*

7.3*

1*

8.5*

1

8.5

ns

tpd

PRE or CLR

Q or Q

CL = 50 pF

6.6

9.7

1

11

1

11

ns

tpd

CLK

Q or Q

CL = 50 pF

7.2

9.3

1

10.5

1

10.5

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 6)

PARAMETER

SN74LV74A

UNIT

PARAMETER

MIN

TYP

MAX

UNIT

VOL(P)

Quiet output, maximum dynamic VOL

0.1

0.8

V

VOL(V)

Quiet output, minimum dynamic VOL

0

−0.8

V

VOH(V)

Quiet output, minimum dynamic VOH

3.2

V

VIH(D)

High-level dynamic input voltage

2.31

V

VIL(D)

Low-level dynamic input voltage

0.99

V

NOTE 6: Characteristics are for surface-mount packages only.

operating characteristics, TA = 25°C

PARAMETER

TEST CONDITIONS

VCC

TYP

UNIT

Cpd

Power dissipation capacitance

CL = 50 pF,

f = 10 MHz

3.3 V

21

pF

Cpd

Power dissipation capacitance

CL = 50 pF,

f = 10 MHz

5 V

23

pF

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