DocID1989 Rev 6

9/22

M74HC595

Electrical characteristics

22

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

Symbol

Parameter

Test condition

Value

Unit

VCC (V) CL (pF)

TA = 25°C

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min.

Max.

tTLH, tTHL

Output

transition time

(Qn)

2.0

50

25

60

75

90

ns

4.5

7

12

15

18

6.0

6

10

13

15

tTLH, tTHL

Output

transition time

(QH’)

2.0

50

30

75

95

115

ns

4.5

8

15

19

23

6.0

7

13

16

20

tPLH, tPHL

Propagation

delay time

(SCK - QH’)

2.0

50

45

125

155

190

ns

4.5

15

25

31

38

6.0

13

21

26

32

tPLH, tPHL

Propagation

delay time

(SCLR - QH’)

2.0

50

60

175

220

265

ns

4.5

18

35

44

53

6.0

15

30

37

45

tPLH, tPHL

Propagation

delay time

(RCK - Qn)

2.0

50

60

150

190

225

ns

4.5

20

30

38

45

6.0

17

26

32

38

2.0

150

75

190

240

285

ns

4.5

25

38

48

57

6.0

22

32

41

48

tPZL, tPZH

High

impedance

output enable

time

2.0

50

RL = 1 KΩ

45

135

170

205

ns

4.5

15

27

34

41

6.0

13

23

29

35

2.0

150

RL = 1 KΩ

60

175

220

265

ns

4.5

20

35

44

53

6.0

17

30

37

45

tPLZ, tPHZ

High

impedance

output disable

time

2.0

50

RL = 1 KΩ

30

150

190

225

ns

4.5

15

30

38

45

6.0

14

26

32

38