January 1995

3

Philips Semiconductors

Product specification

Octal buffers with 3-state outputs

HEF40244B

buffers

Fig.3 Logic diagram (one buffer).

TRUTH TABLE

Notes

1. H = HIGH state (the more positive voltage)

L = LOW state (the less positive voltage)

X = state is immaterial

Z = high impedance off state

INPUTS

OUTPUT

EO

HL

H

LL

L

XH

Z

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134).

See Family Specifications, except for:

DC CHARACTERISTICS

D.C. current into any input

max.

10 mA

D.C. source or sink current into any output

± I

O

max.

25 mA

D.C. current into the supply terminals

± I

max.

100 mA

V

V

V

SYMBOL

−40

+25

+85

MIN.

TYP.

MIN.

TYP.

MIN.

TYP.

Output current

5

4,6

0,75

0,6

1,2

0,45

mA

HIGH

10

9,5

1,85

1,5

3,0

1,1

mA

15

13,5

14,5

15

50

15,5

mA

Output current

5

3,6

9,3

10

24

10,7

mA

HIGH

10

8,4

14,4

15

46

15,0

mA

15

13,2

19,5

20

62

19,8

mA

Output current

5

0,4

2,9

2,3

5,4

1,75

mA

LOW

10

9,5

7,6

17

5,50

mA

15

1,5

30,0

25

45

19,0

mA

Hysteresis

5

220

mV

voltage

10

250

mV

(any input)

15

320

mV