Symb ol

Parameter

T est Cond ition s

Value

Un it

(V)

Min.

Typ.

Max.

Propagation Delay Time Clock to Q Output

5

200

400

ns

10

100

200

15

75

150

Propagation Delay Time Preset or Reset to

Q Output

5

210

420

ns

10

105

210

15

80

160

Propagation Delay Time Clock to Carry Out

5

240

480

ns

10

120

240

15

90

180

Propagation Delay Time Carry In to Carry

Out

5

125

250

ns

10

60

120

15

50

100

Propagation Delay Time Preset or Reset to

Carry Out

5

320

640

ns

10

160

320

15

125

250

Transition Time

5

100

200

ns

10

50

100

15

40

80

Max Clock Frequency

5

2

4

MHz

10

4

8

15

5.5

11

Clock Pulse Width

5

150

ns

10

75

15

60

Preset Enable or Reset Removal Time (1)

5

150

ns

10

80

15

60

Clock Rise and Fall Time (2)

5

15

µs

10

5

15

5

Carry In Setup Time

5

130

ns

10

60

15

45

Up Down Setup Time

5

360

ns

10

160

15

110

Preset Enable or Reset Pulse Width

5

220

ns

10

100

15

75

(1) Timerequired after the falling edge of the reset or preset enable inuts before the rising edge ofthe clock will trigger the counter (similar to setuptime).

(2) Ifmore than unit is cascated in the parallel clocked application, trCL should be made less than or equal to the sum of the fixed propagation delay at

15pF and the transition timeof the carry output driving stage ofthe estimated capacitive load.

HCF4510B/4515B

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