Datasheet 74ABT240PW, 74ABT240N, 74ABT240DB, 74ABT240D, 74ABT240-1N Datasheet (Philips)

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

CL = 50pF; VCC = 5V 3.1 ns

C

IN

Input capacitance VI = 0V or V

CC

4 pF

C

OUT

Output capacitance Outputs disabled; VO = 0V or V

CC

7 pF

I

CCZ

Total supply current Outputs disabled; VCC =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 PlasticTSSOP Type I –40°C to +85°C 74ABT240 PW 74ABT240PW DH SOT360-1

PIN DESCRIPTION

PIN

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

3 1Y3

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

2Y0

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 VI < 0 –18 mA

V

I

DC input voltage

3

–1.2 to +7.0 V

I

OK

DC output diode current VO < 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

LIMITS

SYMBOL

PARAMETER

Min Max

UNIT

V

CC

DC supply voltage 4.5 5.5 V

V

I

Input voltage 0 V

CC

V

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 VCC = 4.5V; IIK = –18mA –0.9 –1.2 –1.2 V

VCC = 4.5V; IOH = –3mA; VI = VIL or V

IH

2.5 2.9 2.5 V

V

OH

High-level output voltage VCC = 5.0V; IOH = –3mA; VI = VIL or V

IH

3.0 3.4 3.0 V

VCC = 4.5V; IOH = –32mA; VI = VIL or V

IH

2.0 2.4 2.0 V

V

OL

Low-level output voltage VCC = 4.5V; IOL = 64mA; VI = VIL or V

IH

0.42 0.55 0.55 V

I

I

Input leakage current VCC = 5.5V; VI = GND or 5.5V ±0.01 ±1.0 ±1.0 µA

I

OFF

Power-off leakage current VCC = 0.0V; VI or VO ≤ 4.5V; ±5.0 ±100 ±100 µA

IPU/I

PD

Power-up/down 3-state
output current

3

VCC = 2.1V; VO = 0.5V; VI = GND or VCC;
V

OE

= Don’t care

±5.0 ±50 ±50 µA

I

OZH

3-State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or V

IH

5.0 50 50 µA

I

OZL

3-State output Low current VCC = 5.5V; VO = 0.5V; VI = VIL or V

IH

–5.0 –50 –50 µA

I

CEX

Output High leakage current VCC = 5.5V; VO = 5.5V; VI = GND or V

CC

5.0 50 50 µA

I

O

Output current

1

VCC = 5.5V; VO = 2.5V –50 –100 –180 –50 –180 mA

I

CCH

VCC = 5.5V; Outputs High, VI = GND or V

CC

50 250 250 µA

I

CCL

Quiescent supply current VCC = 5.5V; Outputs Low, VI = GND or V

CC

24 30 30 mA

I

CCZ

VCC = 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; VCC = 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 VCC = 2.1V to VCC 5V ± 10% a

transition time of up to 100µsec is permitted.

Philips Semiconductors Product specification

74ABT240Octal inverting buffer (3-State)

1996 Sep 10

5

AC CHARACTERISTICS

GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω

LIMITS

SYMBOL PARAMETER WAVEFORM

T

amb

= +25°C

V

CC

= +5.0V

T

amb

= –40°C to +85°C

V

CC

= +5.0V ±0.5V

UNIT

Min Typ Max Min Max

t

PLH

t

PHL

Propagation delay
nAx to nY

x

1

1.0

1.6

2.7

3.5

4.1

4.3

1.0

1.6

4.8

4.8

ns

t

PZH

t

PZL

Output enable time
to High and Low level

2

1.1

1.1

3.1

4.2

4.7

5.8

1.1

1.1

5.2

6.2

ns

t

PHZ

t

PLZ

Output disable time
from High and Low level

2

1.8

1.6

3.7

3.0

5.7

5.4

1.8

1.6

6.4

5.8

ns

AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V

nAx INPUT

V

M

V

M

nYx OUTPUT

V

M

V

M

t

PHL

t

PLH

SA00037

Waveform 1. Waveforms Showing the Input (nAx) to

Output (nY

x) Propagation Delays

nOE INPUT

V

M

V

M

t

PZH

t

PHZ

nYx OUTPUT

V

OH

V

M

V

M

nYx OUTPUT

V

OL

t

PZL

t

PLZ

3.5V

0V

V

OL

+ 0.3V

VOH – 0.3V

SA00017

Waveform 2. Waveforms Showing the 3-State Output

Enable and Disable Times

Philips Semiconductors Product specification

74ABT240Octal inverting buffer (3-State)

1996 Sep 10

6

TEST CIRCUIT AND WAVEFORMS

PULSE

GENERATOR

R

T

V

IN

V

OUT

C

L

R

L

V

CC

R

L

7.0V

Test Circuit for 3-State Outputs

V

M

V

M

t

W

AMP (V)

NEGATIVE
PULSE

10% 10%

90%

90%

0V

V

M

V

M

t

W

AMP (V)

POSITIVE
PULSE

90% 90%

10%

10%

0V

t

THL

(tF)

t

TLH

(tR) t

THL

(tF)

t

TLH

(tR)

VM = 1.5V

Input Pulse Definition

DEFINITIONS

RL = Load resistor; see AC CHARACTERISTICS for value.
C

L

= Load capacitance includes jig and probe capacitance;

see AC CHARACTERISTICS for value.

R

T

= Termination resistance should be equal to Z

OUT

of

pulse generators.

INPUT PULSE REQUIREMENTS

FAMILY

Amplitude Rep. Rate t

W

t

R

t

F

74ABT 3.0V 1MHz 500ns 2.5ns 2.5ns

SWITCH POSITION

TEST SWITCH

t

PLZ

closed

t

PZL

closed

All other open

SA00012

D.U.T.