74HC191D datasheet(11/14 Pages) PHILIPS

tên linh kiện	74HC191D

Giải thích chi tiết về linh kiện	Presettable synchronous 4-bit binary up/down counter

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11 / 14 page

December 1990

11

Philips Semiconductors

Product speciﬁcation

Presettable synchronous 4-bit binary

up/down counter

74HC/HCT191

AC CHARACTERISTICS FOR 74HCT

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 Qn

26

48

60

72

ns

4.5

Fig.10

tPHL/ tPLH

propagation delay

CP to TC

32

51

64

77

ns

4.5

Fig.10

tPHL/ tPLH

propagation delay

CP to RC

19

35

44

53

ns

4.5

Fig.11

tPHL/ tPLH

propagation delay

CE to RC

19

33

41

50

ns

4.5

Fig.11

tPHL/ tPLH

propagation delay

Dn to Qn

22

44

55

66

ns

4.5

Fig.12

tPHL/ tPLH

propagation delay

PL to Qn

27

46

58

69

ns

4.5

Fig.13

tPHL/ tPLH

propagation delay

U/D to TC

23

45

56

68

ns

4.5

Fig.14

tPHL/ tPLH

propagation delay

U/D to RC

24

45

56

68

ns

4.5

Fig.14

tTHL/ tTLH

output transition time

7

15

19

22

ns

4.5

Fig.15

tW

clock pulse width

HIGH or LOW

16

9

20

24

ns

4.5

Fig.10

tW

parallel load pulse width

LOW

22

11

28

33

ns

4.5

Fig.15

trem

removal time

PL to CP

7

1

9

11

ns

4.5

Fig.15

tsu

set-up time

U/D to CP

41

20

51

62

ns

4.5

Fig.17

tsu

set-up time

Dn to PL

20

9

25

30

ns

4.5

Fig.16

tsu

set-up time

CE to CP

30

18

38

45

ns

4.5

Fig.17

th

hold time

U/D to CP

0

−18

0

ns

4.5

Fig.17

th

hold time

Dn to PL

0

−5

0

ns

4.5

Fig.16

th

hold time

CE to CP

0

−10

0

ns

4.5

Fig.17

fmax

maximum clock pulse

frequency

20

33

16

13

MHz

4.5

Fig.10

Số phần tương tự - 74HC191D

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Nexperia B.V. All right...	74HC191D	296Kb / 18P	Presettable synchronous 4-bit binary up/down counter Rev. 6 - 8 September 2021

More results

Mô tả tương tự - 74HC191D

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More results

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Số phần tương tự - 74HC191D

Mô tả tương tự - 74HC191D

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