MC74HC163ADTG datasheet(5/15 Pages) ONSEMI

Part #	MC74HC163ADTG

Description	Presettable Counters

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MC74HC161A, MC74HC163A

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5

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6.0 ns)

Symbol

Parameter

Figure

VCC

V

Guaranteed Limit

Unit

– 55 to 25_C

v 85_C

v 125_C

fmax

Maximum Clock Frequency

(50% Duty Cycle)

(Note 6)

4, 10

2.0

3.0

4.5

6.0

6

15

30

35

5

12

24

28

4

10

20

24

MHz

tPLH

Maximum Propagation Delay,

Clock to Q

4, 10

2.0

3.0

4.5

6.0

120

75

20

16

160

120

23

20

200

150

28

22

ns

tPHL

4, 10

2.0

3.0

4.5

6.0

145

100

22

18

185

135

25

20

220

150

30

23

ns

tPHL

Maximum Propagation Delay,

Reset to Q (HC161A Only)

5, 10

2.0

3.0

4.5

6.0

145

100

20

17

185

135

22

19

220

150

25

21

ns

tPLH

Maximum Propagation Delay,

Enable T to Ripple Carry Out

6, 10

2.0

3.0

4.5

6.0

110

60

16

14

150

115

18

15

190

140

20

17

ns

tPHL

6, 10

2.0

3.0

4.5

6.0

135

100

18

15

175

130

20

16

210

160

22

20

ns

tPLH

Maximum Propagation Delay,

Clock to Ripple Carry Out

4, 10

2.0

3.0

4.5

6.0

120

75

22

18

160

135

27

22

200

150

30

25

ns

tPHL

4, 10

2.0

3.0

4.5

6.0

145

100

22

20

185

135

28

24

220

150

35

28

ns

tPHL

Maximum Propagation Delay,

Reset to Ripple Carry Out

(HC161A Only)

5, 10

2.0

3.0

4.5

6.0

155

120

22

18

190

140

26

22

230

155

30

25

ns

tTLH,

tTHL

Maximum Output Transition Time,

Any Output

5, 10

2.0

3.0

4.5

6.0

75

30

15

13

95

40

19

16

110

55

22

19

ns

Cin

Maximum Input Capacitance

4, 10

−

10

pF

6. Applies to noncascaded/nonsynchronous clocked configurations only with synchronously cascaded counters. (1) Clock to Ripple Carry Out

propagation delays. (2) Enable T or Enable P to Clock setup times and (3) Clock to Enable T or Enable P hold times determine fmax. However,

if Ripple Carry out of each stage is tied to the Clock of the next stage (nonsynchronously clocked) the fmax in the table above is applicable.

See Applications information in this data sheet.

CPD

Power Dissipation Capacitance (Per Gate) (Note 7)

Typical @ 25°C, VCC = 5.0 V

pF

45

7. Used to determine the no−load dynamic power consumption: PD = CPD VCC2f + ICC VCC.

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