74ABT240D,602 Datasheet 74ABT240D,602, 74ABT240DB,112, 74ABT240N,602 | P1-P3

Philips Semiconductors Product specification

74ABT240Octal inverting buffer (3-State)

2

1996 Sep 10 853–1608 17274

FEATURES

• Octal bus interface

• 3-State buffers

• Output capability: +64mA/–32mA

• Latch-up protection exceeds 500mA per Jedec Std 17

• ESD protection exceeds 2000 V per MIL STD 883 Method 3015

and 200 V per Machine Model

• Power-up 3-State

• Live insertion/extraction permitted

DESCRIPTION

The 74ABT240 high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed and high

output drive.

The 74ABT240 device is an octal inverting buffer that is ideal for

driving bus lines. The device features two Output Enables (1OE

,

2OE

), each controlling four of the 3-State outputs.

QUICK REFERENCE DATA

SYMBOL PARAMETER

CONDITIONS

T

amb

= 25°C; GND = 0V

TYPICAL UNIT

t

PLH

t

PHL

Propagation delay

nAx to nY

x

C

L

= 50pF; V

CC

= 5V 3.1 ns

C

IN

Input capacitance V

I

= 0V or V

CC

4 pF

C

OUT

Output capacitance Outputs disabled; V

O

= 0V or V

CC

7 pF

I

CCZ

Total supply current Outputs disabled; V

CC

=5.5V 50 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER

20-Pin Plastic DIP –40°C to +85°C 74ABT240 N 74ABT240 N SOT146-1

20-Pin plastic SO –40°C to +85°C 74ABT240 D 74ABT240 D SOT163-1

20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT240 DB 74ABT240 DB SOT339-1

20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT240 PW 74ABT240PW DH SOT360-1

PIN DESCRIPTION

NUMBER

SYMBOL NAME AND FUNCTION

2, 4, 6, 8 1A0 – 1A3 Data inputs

11, 13, 15,

17

2A0 – 2A3 Data inputs

18, 16, 14,

12

1Y0 – 1Y3 Data outputs

9, 7, 5, 3 2Y0 – 2Y3 Data outputs

1, 19 1OE, 2OE Output enables

10 GND Ground (0V)

20 V

CC

Positive supply voltage

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10 11

12

13

14

15

16

17

18

19

20

1OE

1A0

2Y

0

1A1

2Y

1

1A2

2Y

2

1A3

2Y

31Y3

GND

2A2

1Y

2

2A1

1Y

1

2A0

1Y

0

2OE

V

CC

2A3

SA00034

Philips Semiconductors Product specification

74ABT240Octal inverting buffer (3-State)

1996 Sep 10

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

1Y

0

1Y

1

1Y

2

1Y

3

2Y

0

2Y

1

2Y

2

2Y

3

9

7

5

3

1OE

SA00035

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

LOGIC SYMBOL (IEEE/IEC)

EN

1

2

18

4

16

6

14

8

12

19

11

9

13

7

15

5

17

3

EN

SA00036

ABSOLUTE MAXIMUM RATINGS

1,

2

SYMBOL

PARAMETER CONDITIONS RATING UNIT

V

CC

DC supply voltage –0.5 to +7.0 V

I

IK

DC input diode current V

I

< 0 –18 mA

V

I

DC input voltage

3

–1.2 to +7.0 V

I

OK

DC output diode current V

O

< 0 –50 mA

V

OUT

DC output voltage

3

output in Off or High state –0.5 to +5.5 V

I

OUT

DC output current output in Low state 128 mA

T

stg

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.

Philips Semiconductors Product specification

74ABT240Octal inverting buffer (3-State)

1996 Sep 10

4

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

Min Max

UNIT

V

CC

DC supply voltage 4.5 5.5 V

V

I

Input voltage 0 V

CC

V

IH

High-level input voltage 2.0 V

V

IL

Low-level Input voltage 0.8 V

I

OH

High-level output current –32 mA

I

OL

Low-level output current 64 mA

∆t/∆v Input transition rise or fall rate 0 10 ns/V

T

amb

Operating free-air temperature range –40 +85 °C

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL PARAMETER TEST CONDITIONS T

amb

= +25°C

T

amb

= –40°C

to +85°C

UNIT

Min Typ Max Min Max

V

IK

Input clamp voltage V

CC

= 4.5V; I

IK

= –18mA –0.9 –1.2 –1.2 V

V

CC

= 4.5V; I

OH

= –3mA; V

I

= V

IL

or V

IH

2.5 2.9 2.5 V

V

OH

High-level output voltage V

CC

= 5.0V; I

OH

= –3mA; V

I

= V

IL

or V

IH

3.0 3.4 3.0 V

V

CC

= 4.5V; I

OH

= –32mA; V

I

= V

IL

or V

IH

2.0 2.4 2.0 V

V

OL

Low-level output voltage V

CC

= 4.5V; I

OL

= 64mA; V

I

= V

IL

or V

IH

0.42 0.55 0.55 V

I

Input leakage current V

CC

= 5.5V; V

I

= GND or 5.5V ±0.01 ±1.0 ±1.0 µA

I

OFF

Power-off leakage current V

CC

= 0.0V; V

I

or V

O

≤ 4.5V; ±5.0 ±100 ±100 µA

I

PU

/I

PD

Power-up/down 3-state

output current

3

V

CC

= 2.1V; V

O

= 0.5V; V

I

= GND or V

CC

;

V

OE

= Don’t care

±5.0 ±50 ±50 µA

I

OZH

3-State output High current V

CC

= 5.5V; V

O

= 2.7V; V

I

= V

IL

or V

IH

5.0 50 50 µA

I

OZL

3-State output Low current V

CC

= 5.5V; V

O

= 0.5V; V

I

= V

IL

or V

IH

–5.0 –50 –50 µA

I

CEX

Output High leakage current V

CC

= 5.5V; V

O

= 5.5V; V

I

= GND or V

CC

5.0 50 50 µA

I

O

Output current

1

V

CC

= 5.5V; V

O

= 2.5V –50 –100 –180 –50 –180 mA

I

CCH

V

CC

= 5.5V; Outputs High, V

I

= GND or V

CC

50 250 250 µA

I

CCL

Quiescent supply current V

CC

= 5.5V; Outputs Low, V

I

= GND or V

CC

24 30 30 mA

I

CCZ

V

CC

= 5.5V; Outputs 3-State;

V

I

= GND or V

CC

50 250 250 µA

∆I

CC

Additional supply current per

input pin

2

Outputs 3-State, one input at 3.4V, other

inputs at V

CC

or GND; V

CC

= 5.5V

0.5 1.5 1.5 mA

NOTES:

1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

2. This is the increase in supply current for each input at 3.4V.

3. This parameter is valid for any V

CC

between 0V and 2.1V, with a transition time of up to 10msec. From V

CC

= 2.1V to V

CC

5V ± 10% a

transition time of up to 100µsec is permitted.

74ABT240D,602

74ABT240D,602

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