©1994 Fairchild Semiconductor Corporation

www.fairchildsemi.com

74LCX240 Rev. 1.6.0

4

DC Electrical Characteristics

Note:

4. Outputs disabled or 3-STATE only.

AC Electrical Characteristics

Note:

5. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate

outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-

Symbol

Parameter

Conditions

Units

Min.

Max.

HIGH Level Input Voltage

2.3–2.7

1.7

V

2.7–3.6

2.0

LOW Level Input Voltage

2.3–2.7

0.7

V

2.7–3.6

0.8

HIGH Level Output Voltage

2.3–3.6

V

2.3

1.8

2.7

2.2

3.0

2.4

2.2

LOW Level Output Voltage

2.3–3.6

0.2

V

2.3

0.6

2.7

0.4

3.0

0.4

0.55

Input Leakage Current

2.3–3.6

±5.0

µA

Power-Off Leakage Current

10

µA

Quiescent Supply Current

2.3–3.6

10

µA

(4)

±10

2.3–3.6

500

µA

Symbol

Parameter

Units

Min.

Max.

Min.

Max.

Min.

Max.

Propagation Delay

1.5

6.5

1.5

7.5

1.5

7.8

ns

Output Enable Time

1.5

8.0

1.5

9.0

1.5

10.0

ns

Output Disable Time

1.5

7.0

1.5

8.0

1.5

8.4

ns

1.0

ns