74HC_HCT240_3

© NXP B.V. 2007. All rights reserved.

Product data sheet

Rev. 03 — 2 August 2007

6 of 18

NXP Semiconductors

74HC240; 74HCT240

Octal buffer/line driver; 3-state; inverting

VOL

LOW-level

output voltage

VI =VIH or VIL

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

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

per input pin; VI =VIH or VIL;

VO =VCC or GND;

other inputs at VCC or GND;

VCC = 6.0 V; IO =0A

--

±0.5

-

±5.0

-

±10

µA

ICC

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

VCC = 6.0 V

-

-

8.0

-

80

-

160

µA

CI

input

capacitance

-

3.5

-

-

-

-

-

pF

74HCT240

VIH

HIGH-level

input voltage

VCC = 4.5 V to 5.5 V

2.0

1.6

-

2.0

-

2.0

-

V

VIL

LOW-level

input voltage

VCC = 4.5 V to 5.5 V

-

1.2

0.8

-

0.8

-

0.8

V

VOH

HIGH-level

output voltage

VI =VIH or VIL; VCC = 4.5 V

IO = −20 µA

4.4

4.5

-

4.4

-

4.4

-

V

IO = −6 mA

3.98 4.32

-

3.84

-

3.7

-

V

VOL

LOW-level

output voltage

VI =VIH or VIL; VCC = 4.5 V

IO =20 µA

-

0

0.1

-

0.1

-

0.1

V

IO = 6.0 mA

-

0.16

0.26

-

0.33

-

0.4

V

II

input leakage

current

VI =VCC or GND;

VCC = 5.5 V

--

±0.1

-

±1.0

-

±1.0

µA

IOZ

OFF-state

output current

per input pin; VI =VIH or VIL;

VO =VCC or GND;

other inputs at VCC or GND;

VCC = 5.5 V; IO =0A

--

±0.5

-

±5.0

-

±10

µA

ICC

supply current VI =VCC or GND;

VCC = 5.5 V; IO =0A

-

-

8.0

-

80

-

160

µA

∆ICC

additional

supply current

per input pin;

VI =VCC − 2.1 V;

other inputs at VCC or GND;

VCC = 4.5 V to 5.5 V;

IO =0A

nAn or inputs

-

150

540

-

675

-

735

µA

nOE input

-

70

252

-

315

-

343

µA

CI

input

capacitance

-

3.5

-

-

-

-

-

pF

Table 6.

Static characteristics …continued

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