MC10H136

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4

Table 5. AC CHARACTERISTICS

0°

25°

75°

Symbol

Characteristic

Min

Max

Min

Max

Min

Max

Unit

Propagation Delay

Clock to Q

Clock to Carry Out

Carry in to Carry

Out

0.7

1.0

0.7

2.3

4.8

2.5

0.7

1.0

0.7

2.4

4.9

2.6

0.7

1.0

0.7

2.5

5.0

2.7

ns

Set-up Time

Data (D0 to C)

Select (S to C)

2.0

3.5

2.0

0

−

−

−

−

2.0

3.5

2.0

0

−

−

−

−

2.0

3.5

2.0

0

−

−

−

−

ns

Hold Time

Data (C to D0)

Select (C to S)

0

−0.5

0

2.2

−

−

−

−

0

−0.5

0

2.2

−

−

−

−

0

−0.5

0

2.2

−

−

−

−

ns

Counting Frequency

250

−

250

−

250

−

MHz

Rise Time

0.5

2.3

0.5

2.4

0.5

2.5

ns

Fall Time

0.5

2.3

0.5

2.4

0.5

2.5

ns

NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit

board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared

operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit

values are applied individually under normal operating conditions and not valid simultaneously.

Q2

T

T

T

T

T

T

T

Q3

T

Q3

Q1

Q1

T

T

C

T

C

T C

Q0

Figure 2. Logic Diagram

NOTE: FLIP-FLOPS WILL TOGGLE WHEN ALL T INPUTS ARE LOW.

S1 9

S2 7

Carry In

10

Clock

13

12

D0

14

Q0

11

D1

15

Q1

6

D2

2

Q2

5

D3

3

Q3

4

Carry Out

T

C

Q0

T

Q2