M74HC292C1R datasheet(8/14 Pages) STMICROELECTRONICS

Part #	M74HC292C1R

Description	PROGRAMMABLE DIVIDER/TIMER

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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8 / 14 page

AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)

Symbol

Parameter

Test Conditions

Value

Unit

VCC

(V)

TA =25

oC

54HC and 74HC

-40 to 85

oC

74HC

-55 to 125

oC

54HC

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tTLH

tTHL

Output Transition

Time

(Q)

2.0

30

75

95

110

ns

4.5

8

151922

6.0

7

131619

tTLH

tTHL

Output Transition

Time

(TP)

2.0

116

225

280

340

ns

4.5

29

45

56

68

6.0

25

38

48

57

tPLH

tPHL

Propagation

Delay Time

(CK - Q)

2.0

for HC292/7292

160

350

440

ns

4.5

46

70

88

105

6.0

39

60

75

90

tPLH

tPHL

Propagation

Delay Time

(CK - Q)

2.0

for HC294/7294

145

330

415

ns

4.5

43

66

83

15

6.0

37

56

71

84

tPHL

Propagation

Delay Time

(CLR - Q)

2.0

for HC292/7292

130

320

400

210

ns

4.5

42

64

80

100

6.0

36

54

68

81

tPHL

Propagation

Delay Time

(CLR - Q)

2.0

for HC294/7294

110

260

325

390

ns

4.5

34

52

65

78

6.0

29

44

55

66

fMAX

Maximum Clock

Frequency

2.0

for HC292/7292

5.0

21

4

3.4

MHz

4.5

27

64

22

18

6.0

32

75

26

21

fMAX

Maximum Clock

Frequency

2.0

for HC294/7294

6.0

20

5

4

MHz

4.5

32

64

26

21

6.0

38

75

31

25

tW(H)

tW(L)

Minimum Pulse

Width

(CLOCK)

2.0

40

75

95

110

ns

4.5

8

151922

6.0

7

131620

tW(L)

Minimum Pulse

Width

(CLEAR)

2.0

for HC292/7292

48

125

155

190

ns

4.5

12

25

31

38

6.0

10

21

26

32

tW(L)

Minimum Pulse

Width

(CLEAR)

2.0

for HC294/7294

40

100

125

150

ns

4.5

10

20

25

30

6.0

9

172126

tREM

Minimum

Removal Time

2.0

for HC292/7292

555

ns

4.5

5

6.0

5

tREM

Minimum

Removal Time

2.0

for HC294/7294

000

ns

4.5

0

6.0

0

CIN

Input Capacitance

5

10

pF

CPD (*)

Power Dissipation

Capacitance

for HC292/7292

for HC294/7294

21

23

pF

(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.

(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD

•VCC •fIN +ICC

M54/M74HC292/7292/294/7294

8/14

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