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Timing Requirements

Switching Characteristics

Switching Characteristics

Operating Characteristics

SN74AUC74

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

WITH CLEAR AND PRESET

SCES483A – AUGUST 2003 – REVISED MARCH 2005

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

± 0.1 V

± 0.1 V

± 0.15 V

± 0.2 V

UNIT

TYP

MIN MAX

MIN MAX

MIN

MAX

MIN MAX

Clock frequency

100

225

250

300

350

MHz

CLK high or low

4.6

1.3

0.6

0.5

0.5

Pulse duration

CLR low

6.6

2

1.5

1.5

1.5

ns

PRE low

4.8

1.8

1.5

1.5

1.5

Data

2.3

1

0.6

0.6

0.7

Setup time before

CLR inactive

0

0

0

0

0.3

ns

CLK

↑

PRE inactive

0

0

0

0.2

0.3

Hold time, data after CLK

↑

2.1

0.3

0.3

0.3

0.3

ns

over recommended operating free-air temperature range, C

FROM

TO

± 0.1 V

± 0.1 V

± 0.15 V

± 0.2 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

TYP

MIN

MAX

MIN

MAX

MIN

TYP

MAX

MIN

MAX

100

225

250

300

350

MHz

CLK

9.5

1.3

4

0.7

2.5

0.5

1.2

2.1

0.5

1.4

CLR

Q or Q

10.5

1.5

4.1

1.1

2.9

0.9

1.4

2.4

0.7

1.6

ns

PRE

12

1.6

4.7

1.1

2.8

0.9

1.4

2.4

0.7

1.6

over recommended operating free-air temperature range, C

FROM

TO

± 0.15 V

± 0.2 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

300

350

MHz

CLK

1.2

1.9

2.8

1

2.2

CLR

Q or Q

1.3

2.1

3

1.1

2.4

ns

PRE

1.3

2.1

3.1

1.1

2.5

T

TEST

PARAMETER

UNIT

CONDITIONS

TYP

TYP

TYP

TYP

TYP

Power dissipation

f = 10 MHz

36

36

36

37

41

pF

capacitance

4