Nexperia

74HC7540; 74HCT7540

Octal Schmitt trigger buffer/line driver; 3-state; inverting

8. Recommended operating conditions

Table 5. Recommended operating conditions

Voltages are referenced to GND (ground = 0 V)

74HC7540

74HCT7540

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

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

74HC7540

VI = VT+ or VT-

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

VOH

HIGH-level

output voltage

IO = -7.8 mA; VCC = 6.0 V

5.48 5.81

-

5.34

-

5.2

-

V

VI = VT+ or VT-

IO = 20 μA; VCC = 2.0 V

-

0

0.1

-

0.1

-

0.1

V

IO = 20 μA; VCC = 4.5 V

-

0

0.1

-

0.1

-

0.1

V

IO = 20 μA; VCC = 6.0 V

-

0

0.1

-

0.1

-

0.1

V

IO = 6.0 mA; VCC = 4.5 V

-

0.15 0.26

-

0.33

-

0.4

V

VOL

LOW-level

output voltage

IO = 7.8 mA; VCC = 6.0 V

-

0.16 0.26

-

0.33

-

0.4

V

II

input leakage

current

VI = VCC or GND; VCC = 6.0 V

-

-

±0.1

-

±1.0

-

±1.0

μA

IOZ

OFF-state

output current

VI = VT+ or VT-; VCC = 6.0 V;

VO = VCC or GND

-

-

±0.5

-

±5.0

-

±10

μA

ICC

supply current VI = VCC or GND; IO = 0 A;

VCC = 6.0 V

-

-

8.0

-

80

-

160

μA

CI

input

capacitance

-

3.5

-

-

-

-

-

pF

74HC_HCT7540

All information provided in this document is subject to legal disclaimers.

© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 4 August 2021

4 / 15