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Timing Requirements

Switching Characteristics

Switching Characteristics

Operating Characteristics

SN54LVC74A, SN74LVC74A

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

WITH CLEAR AND PRESET

SCAS287S – JANUARY 1993 – REVISED MAY 2005

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)

SN74LVC74A

UNIT

± 0.15 V

± 0.2 V

± 0.3 V

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

Clock frequency

83

83

83

150

MHz

PRE or CLR low

4.1

3.3

3.3

3.3

Pulse duration

ns

CLK high or low

4.1

3.3

3.3

3.3

Data

3.6

2.3

3.4

3

Setup time before CLK

↑

ns

PRE or CLR inactive

2.7

1.9

2.2

2

Hold time, data after CLK

↑

1

1

1

0

ns

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)

SN54LVC74A

FROM

TO

PARAMETER

UNIT

(INPUT)

(OUTPUT)

± 0.3 V

MIN

MAX

MIN

MAX

83

100

MHz

CLK

6

1

5.2

Q or Q

ns

PRE or CLR

6.4

1

5.4

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)

SN74LVC74A

FROM

TO

PARAMETER

UNIT

(INPUT)

(OUTPUT)

± 0.15 V

± 0.2 V

± 0.3 V

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

83

83

83

150

MHz

CLK

1

7.1

1

4.4

1

6

1

5.2

Q or Q

ns

PRE or CLR

1

6.9

1

4.6

1

6.4

1

5.4

1

ns

T

TEST

PARAMETER

UNIT

CONDITIONS

TYP

TYP

TYP

Power dissipation capacitance per flip-flop

f = 10 MHz

24

24

26

pF

5