Nexperia

74HC240; 74HCT240

Octal buffer/line driver; 3-state; inverting

7. Limiting values

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

-0.5

+7

V

IIK

input clamping current

VI < -0.5 V or VI > VCC + 0.5 V

-

±20

mA

IOK

output clamping current

VO < -0.5 V or VO > VCC + 0.5 V

-

±20

mA

IO

output current

-0.5 V < VO < VCC + 0.5 V

-

±35

mA

ICC

supply current

-

70

mA

IGND

ground current

-70

-

mA

Tstg

storage temperature

-65

+150

°C

Ptot

total power dissipation

[1]

-

500

mW

[1] For SOT163-1 (SO20) package: Ptot derates linearly with 12.3 mW/K above 109 °C.

For SOT360-1 (TSSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 °C.

For SOT764-1 (DHVQFN20) package: Ptot derates linearly with 12.9 mW/K above 111 °C.

8. Recommended operating conditions

Table 5. Recommended operating conditions

74HC240

74HCT240

Symbol Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

VCC

supply voltage

2.0

5.0

6.0

4.5

5.0

5.5

V

VI

input voltage

0

-

VCC

0

-

VCC V

VO

output voltage

0

-

VCC

0

-

VCC V

VCC = 2.0 V

-

-

625

-

-

-

ns/V

VCC = 4.5 V

-

1.67

139

-

1.67

139 ns/V

Δt/ΔV

input transition rise and fall rate

VCC = 6.0 V

-

-

83

-

-

-

ns/V

Tamb

ambient temperature

-40

+25

+125

-40

+25

+125 °C

9. Static characteristics

Table 6. Static characteristics

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

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Symbol Parameter

Conditions

Min Typ Max

Min

Max

Min

Max

Unit

74HC240

VCC = 2.0 V

1.5

1.2

-

1.5

-

1.5

-

V

VCC = 4.5 V

3.15

2.4

-

3.15

-

3.15

-

V

VIH

HIGH-level

input voltage

VCC = 6.0 V

4.2

3.2

-

4.2

-

4.2

-

V

VCC = 2.0 V

-

0.8

0.5

-

0.5

-

0.5

V

VCC = 4.5 V

-

2.1

1.35

-

1.35

-

1.35 V

VIL

LOW-level input

voltage

VCC = 6.0 V

-

2.8

1.8

-

1.8

-

1.8

V

74HC_HCT240

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 2 September 2021

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