Philips Semiconductors

Product specification

74ABT2240

Octal inverting buffer with 30

Ω series termination

resistors (3-State)

1998 Jan 16

3

LOGIC SYMBOL

1

1A0

2

1A1

4

1A2

6

1A3

8

2OE

19

2A0

11

13

15

17

2A1

18

2A2

16

2A3

14

12

1Y0

1Y1

1Y2

1Y3

2Y0

2Y1

2Y2

2Y3

9

7

5

3

1OE

SA00035

LOGIC SYMBOL (IEE/IEC)

EN

1

2

18

4

16

6

14

8

12

19

11

9

13

7

15

5

17

3

EN

SA00036

FUNCTION TABLE

INPUTS

OUTPUTS

1OE

1An

2OE

2An

1Yn

2Yn

L

L

L

L

H

H

L

H

L

H

L

L

H

X

H

X

Z

Z

H = High voltage level

L

= Low voltage level

X = Don’t care

Z = High impedance ”off” state

SCHEMATIC OF EACH OUTPUT

GND

OUTPUT

SA00030

SYMBOL

PARAMETER

CONDITIONS

RATING

UNIT

DC supply voltage

–0.5 to +7.0

V

DC input diode current

–18

mA

–1.2 to +7.0

V

DC output diode current

–50

mA

output in Off or High state

–0.5 to +5.5

V

DC output current

output in Low state

128

mA

Storage temperature range

–65 to 150

°C

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to

absolute-maximum-rated conditions for extended periods may affect device reliability.

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction

temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150

°C.

3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.