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74HCT240DB

Octal buffer/line driver; 3-state; inverting

NXP Semiconductors. 

NXP Semiconductors

74HC240; 74HCT240

Octal buffer/line driver; 3-state; inverting

8. Recommended operating conditions

Table 5. Recommended operating conditions

Symbol

Parameter

Conditions

74HC240

VCC

VI

VO

∆t/∆V

Tamb

74HCT240

supply voltage

input voltage

output voltage

input transition rise and fall rate VCC = 2.0 V

VCC = 4.5 V

VCC = 6.0 V

ambient temperature

VCC

VI

VO

∆t/∆V

Tamb

supply voltage

input voltage

output voltage

input transition rise and fall rate VCC = 4.5 V

ambient temperature

9. Static characteristics

Min

Typ

Max

Unit

2.0

5.0

6.0

V

0

-

VCC

V

0

-

VCC

V

-

-

625

ns/V

-

1.67

139

ns/V

-

-

83

ns/V

−40

-

+125

°C

4.5

5.0

5.5

V

0

-

VCC

V

0

-

VCC

V

-

1.67

139

ns/V

−40

-

+125

°C

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

74HC240

VIH

HIGH-level VCC = 2.0 V

input voltage VCC = 4.5 V

1.5 1.2 -

1.5

-

1.5

-V

3.15 2.4 - 3.15

-

3.15

-V

VCC = 6.0 V

4.2 3.2 -

4.2

-

4.2

-V

VIL

LOW-level

VCC = 2.0 V

input voltage VCC = 4.5 V

- 0.8 0.5

-

0.5

-

0.5 V

- 2.1 1.35 -

1.35

-

1.35 V

VCC = 6.0 V

- 2.8 1.8

-

1.8

-

1.8 V

VOH

HIGH-level

VI = VIH or VIL

output voltage IO = −20 µA; VCC = 2.0 V

1.9 2.0 -

1.9

-

1.9

-V

IO = −20 µA; VCC = 4.5 V

4.4 4.5 -

4.4

-

4.4

-V

IO = −20 µA; VCC = 6.0 V

5.9 6.0 -

5.9

-

5.9

-V

IO = −6.0 mA; VCC = 4.5 V

3.98 4.32 -

3.84

-

3.7

-V

IO = −7.8 mA; VCC = 6.0 V

5.48 5.81 -

5.34

-

5.2

-V

74HC_HCT240_3

Product data sheet

Rev. 03 — 2 August 2007

© NXP B.V. 2007. All rights reserved.

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