74AHC_AHCT240

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© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 2 — 26 November 2010

4 of 16

NXP Semiconductors

74AHC240; 74AHCT240

Octal buffer/line driver; inverting; 3-state

8.

Recommended operating conditions

9.

Static characteristics

Table 5.

Recommended operating conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

74AHC240

supply voltage

2.0

5.0

5.5

V

input voltage

0

-

5.5

V

output voltage

0

-

V

ambient temperature

40

+25

+125

C

t/V

input transition rise and fall rate

-

-

100

ns/V

--20

ns/V

74AHCT240

supply voltage

4.5

5.0

5.5

V

input voltage

0

-

5.5

V

output voltage

0

-

V

ambient temperature

40

+25

+125

C

t/V

input transition rise and fall rate

--20

ns/V

Table 6.

Static characteristics

At recommended operating conditions; voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

25

C

40 C to +85 C 40 C to +125 C Unit

Min

Typ

Max

Min

Max

Min

Max

74AHC240

HIGH-level

input voltage

1.5

-

-

1.5

-

1.5

-

V

2.1

-

-

2.1

-

2.1

-

V

3.85

-

-

3.85

-

3.85

-

V

LOW-level

input voltage

-

-

0.5

-

0.5

-

0.5

V

-

-

0.9

-

0.9

-

0.9

V

-

-

1.65

-

1.65

-

1.65

V

HIGH-level

output voltage

1.9

2.0

-

1.9

-

1.9

-

V

2.9

3.0

-

2.9

-

2.9

-

V

4.4

4.5

-

4.4

-

4.4

-

V

2.58

-

-

2.48

-

2.40

-

V

3.94

-

-

3.80

-

3.70

-

V

LOW-level

output voltage

-

0

0.1

-

0.1

-

0.1

V

-

0

0.1

-

0.1

-

0.1

V

-

0

0.1

-

0.1

-

0.1

V

-

-

0.36

-

0.44

-

0.55

V

-

-

0.36

-

0.44

-

0.55

V