74HCT299D datasheet(6/11 Pages) PHILIPS

Teilenummer	74HCT299D

Bauteilbeschribung	8-bit universal shift register; 3-state

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Hersteller	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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6 / 11 page

December 1990

6

Philips Semiconductors

Product speciﬁcation

8-bit universal shift register; 3-state

74HC/HCT299

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: bus driver (parallel I/Os)

standard (serial outputs)

ICC category: MSI

AC CHARACTERISTICS FOR 74HC

GND = 0 V; tr =tf = 6 ns; CL = 50 pF

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HC

VCC

(V)

WAVEFORMS

+25

−40 to +85

−40 to +125

min. typ.

max.

min.

max.

min.

max.

tPHL/ tPLH propagation delay

CP to Q0, Q7

66

24

19

200

40

34

250

50

43

300

60

51

ns

2.0

4.5

6.0

Fig.6

tPHL/ tPLH propagation delay

CP to I/On

66

24

19

200

40

34

250

50

43

300

60

51

ns

2.0

4.5

6.0

Fig.6

tPHL/

propagation delay

MR to Q0, Q7 or I/On

66

24

19

200

40

34

250

50

43

300

60

51

ns

2.0

4.5

6.0

Fig.7

tPZH

3-state output enable time

OEn to I/On

50

18

14

155

31

26

195

39

33

235

47

40

ns

2.0

4.5

6.0

Fig.9

tPZL

3-state output enable time

OEn to I/On

41

15

12

130

26

22

165

33

28

195

39

33

ns

2.0

4.5

6.0

Fig.9

tPHZ

3-state output disable time

OEn to I/On

66

24

19

185

37

31

230

46

39

280

56

48

ns

2.0

4.5

6.0

Fig.9

tPLZ

3-state output disable time

OEn to I/On

55

20

16

155

31

26

195

39

33

235

47

40

ns

2.0

4.5

6.0

Fig.9

tTHL/ tTLH output transition time

bus driver (I/On)

14

5

4

60

12

10

75

15

13

90

18

15

ns

2.0

4.5

6.0

Fig.6

tTHL/ tTLH output transition time

standard (Q0, Q7)

19

7

6

75

15

13

95

19

16

110

22

19

ns

2.0

4.5

6.0

Fig.6

tW

clock pulse width

HIGH or LOW

80

16

14

17

6

5

100

20

17

120

24

20

ns

2.0

4.5

6.0

Fig.6

tW

master reset pulse width

LOW

80

16

14

19

7

6

100

20

17

120

24

20

ns

2.0

4.5

6.0

Fig.7

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