SN54HC574, SN74HC574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS148F − DECEMBER 1982 − REVISED AUGUST 2003

4

POST OFFICE BOX 655303

timing requirements over recommended operating free-air temperature range (unless otherwise

noted)

V

SN54HC574

SN74HC574

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

2 V

6

4

5

Clock frequency

4.5 V

30

20

24

MHz

Clock frequency

6 V

38

24

28

MHz

2 V

80

120

100

Pulse duration, CLK high or low

4.5 V

16

24

20

ns

Pulse duration, CLK high or low

6 V

14

20

17

ns

2 V

100

150

125

Setup time, data before CLK

↑

4.5 V

20

30

25

ns

Setup time, data before CLK

↑

6 V

17

26

21

ns

2 V

5

5

5

Hold time, data after CLK

↑

4.5 V

5

5

5

ns

h

,

6 V

5

5

5

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

V

SN54HC574

SN74HC574

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

2 V

6

11

4

5

4.5 V

30

36

20

24

MHz

6 V

36

40

24

28

MHz

2 V

90

180

270

225

CLK

Any Q

4.5 V

28

36

54

45

ns

CLK

Any Q

6 V

24

31

46

38

ns

2 V

77

150

225

190

OE

Any Q

4.5 V

26

30

45

38

ns

OE

Any Q

6 V

23

26

38

32

ns

2 V

52

150

225

190

OE

Any Q

4.5 V

24

30

45

38

ns

OE

Any Q

6 V

22

26

38

32

ns

2 V

28

60

90

75

Any Q

4.5 V

8

12

18

15

ns

t

yQ

6 V

6

10

15

13