Electrical characteristics

M74HC259

Table 7: AC electrical characteristics (CL = 50 pF, input tr = tf = 6 ns)

Symbol

Parameter

Test

condition

Value

Unit

TA = 25°C

-40 to 85°C

-55 to 125°C

VCC (V)

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tTLH tTHL

Output

transition time

2.0

30

75

95

110

ns

4.5

8

15

19

22

6.0

7

13

16

19

tPLH tPHL

Propagation

delay time

(DATA – Q)

2.0

56

140

175

210

ns

4.5

18

28

35

42

6.0

15

24

30

36

tPLH tPHL

Propagation

delay time

(A, B, C – Q)

2.0

76

190

240

285

ns

4.5

24

38

48

57

6.0

20

32

41

48

tPLH tPHL

Propagation

delay time

(G – Q)

2.0

57

150

190

225

ns

4.5

19

30

38

45

6.0

16

26

32

38

tPLH tPHL

Propagation

delay time

( CLEAR

– Q)

2.0

45

115

145

175

ns

4.5

15

23

29

35

6.0

13

20

25

30

tW(L)

Minimum pulse

width

( ENABLE )

2.0

28

75

90

115

ns

4.5

7

15

19

23

6.0

6

13

16

20

tW(L)

Minimum pulse

width

( CLEAR )

2.0

24

75

90

115

ns

4.5

6

15

19

23

6.0

5

13

16

20

tS

Minimum setup

time (DATA)

2.0

12

50

60

75

ns

4.5

3

10

12

15

6.0

3

9

11

13

tS

Minimum setup

time (A, B, C)

2.0

25

30

40

ns

4.5

5

6

8

6.0

5

5

7

th

Minimum hold

time (DATA)

2.0

5

5

5

ns

4.5

5

5

5

6.0

5

5

5

th

Minimum hold

time (A, B, C)

2.0

0

0

0

ns

4.5

0

0

0

6.0

0

0

0

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