74LCX257

5/13

Table 7: Dynamic Switching Characteristics

1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is

measured in the LOW state.

Table 8: AC Electrical Characteristics

1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-

2) Parameter guaranteed by design

Table 9: Capacitive Characteristics

channel)

Symbol

Parameter

Test Condition

Value

Unit

(V)

Min.

Typ.

Max.

Dynamic Low Level Quiet

Output (note 1)

3.3

0.8

V

-0.8

Symbol

Parameter

Test Condition

Value

Unit

(V)

(pF)

(

Ω)

(ns)

-40 to 85 °C

-55 to 125 °C

Min.

Max.

Min.

Max.

Propagation Delay

Time (A, B to Y)

2.7

50

500

2.5

1.5

6.5

1.5

6.5

ns

3.0 to 3.6

1.5

6.0

1.5

6.0

Propagation Delay

Time (SELECT to Y)

2.7

50

500

2.5

1.5

8.5

1.5

8.5

ns

3.0 to 3.6

1.5

7.0

1.5

7.0

Output Enable Time

2.7

50

500

2.5

1.5

8.5

1.5

8.5

ns

3.0 to 3.6

1.5

7.0

1.5

7.0

Output Disable Time

2.7

50

500

2.5

1.5

6.0

1.5

6.0

ns

3.0 to 3.6

1.5

5.5

1.5

5.5

Output To Output

Skew Time (note1,

2)

3.0 to 3.6

50

500

2.5

1.0

1.0

ns

Symbol

Parameter

Test Condition

Value

Unit

(V)

Min.

Typ.

Max.

Input Capacitance

3.3

7pF

Output Capacitance

3.3

8pF

Power Dissipation Capacitance

(note 1)

3.3

25

pF