Texas Instruments SN74AC08D, SN74AC08DBLE, SN74AC08DBR, SN74AC08DR, SN74AC08N Datasheet

SN54AC08, SN74AC08

QUADRUPLE 2-INPUT POSITIVE-AND GATES

SCAS536B – SEPTEMBER 1995 – REVISED SEPTEMBER 1996

D

EPIC

 (Enhanced-Performance Implanted

CMOS) 1-µm Process

D

Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK) and
Flatpacks (W), and Standard Plastic (N) and
Ceramic (J) DIPS

description

The ’AC08 are quadruple 2-input positive-AND
gates. These devices perform the Boolean
function Y = A  B or Y = A + B in positive logic.

The SN54AC08 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74AC08 is characterized for
operation from –40°C to 85°C.

FUNCTION TABLE

(each gate)

logic symbol

INPUTS

A B

H H H

L XL

X L L

†

OUTPUT

Y

SN54AC08 ... J OR W PACKAGE

SN74AC08 ... D, DB, N, OR PW PACKAGE

SN54AC08 . . . FK PACKAGE

1Y

NC

2A

NC

2B

NC – No internal connection

(TOP VIEW)

1A
1B
1Y
2A
2B
2Y

GND

(TOP VIEW)

1B1ANC

3 2 1 20 19

4
5
6
7
8

910111213

2Y

1
2
3
4
5
6
7

GND

NC

14
13
12
11
10

9
8

V

3Y

CC

4B

18
17
16
15
14

3A

V
4B
4A
4Y
3B
3A
3Y

CC

4A
NC
4Y
NC
3B

logic diagram, each gate (positive logic)

1

1A

2

1B

4

2A

5

2B

9

3A

10

3B

12

4A

13

4B

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, DB, J, N, PW, and W packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

&

3

6

8

11

1Y

2Y

3Y

4Y

A

Y

B

Copyright  1996, Texas Instruments Incorporated

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1

SN54AC08, SN74AC08

UNIT

QUADRUPLE 2-INPUT POSITIVE-AND GATES

SCAS536B – SEPTEMBER 1995 – REVISED SEPTEMBER 1996

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V

Input voltage range, VI (see Note 1) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, VO (see Note 1) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current, IIK (VI < 0 or VI > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current, IOK (VO < 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output current, I

Continuous current through VCC or GND ±200 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum power dissipation at TA = 55°C (in still air) (see Note 2):D package 1.25 W. . . . . . . . . . . . . . . . . . .

Storage temperature range, T

†

Stresses beyond those listed under “absolute maximum ratings” 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.

NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils,
except for the N package, which has a trace length of zero.

–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

(VO = 0 to VCC) ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

DB package 0.5 W. . . . . . . . . . . . . . . . . . .

N package 1.1 W. . . . . . . . . . . . . . . . . . . .

PW package 0.5 W. . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

recommended operating conditions (see Note 3)

SN54AC08 SN74AC08

MIN MAX MIN MAX

V

CC

V

IH

V

IL

V

I

V

O

I

OH

I

OL

∆t/∆v Input transition rise or fall rate 0 8 0 8 ns/V
T

A

NOTE 3: Unused inputs must be held high or low to prevent them from floating.

Supply voltage 2 6 2 6 V

VCC = 3 V 2.1 2.1

High-level input voltage

Low-level input voltage

Input voltage 0 V
Output voltage 0 V

High-level output current

Low-level output current

Operating free-air temperature –55 125 –40 85 °C

VCC = 4.5 V
VCC = 5.5 V 3.85 3.85
VCC = 3 V 0.9 0.9
VCC = 4.5 V
VCC = 5.5 V 1.65 1.65

VCC = 3 V –12 –12
VCC = 4.5 V
VCC = 5.5 V –24 –24
VCC = 3 V 12 12
VCC = 4.5 V
VCC = 5.5 V 24 24

3.15 3.15

1.35 1.35

CC
CC

–24 –24

24 24

0 V
0 V

CC
CC

mA

mA

V

V

V
V

†

2

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PARAMETER

TEST CONDITIONS

V

UNIT

V

V

I

mA

V

V

I

24 mA

PARAMETER

UNIT

A or B

Y

ns

PARAMETER

UNIT

A or B

Y

ns

SN54AC08, SN74AC08

QUADRUPLE 2-INPUT POSITIVE-AND GATES

SCAS536B – SEPTEMBER 1995 – REVISED SEPTEMBER 1996

electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)

CC

3 V 2.9 2.9 2.9

IOH = – 50 µA

OH

OL

I

A or B ports

I

I

CC

C

i

†

Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.

IOH = – 12 mA 3 V 2.56 2.4 2.46

= – 24

OH

IOH = – 50 mA
IOH = – 75 mA

IOL = 50 µA

IOL = 12 mA 3 V 0.36 0.5 0.44

=

OL

IOL = 50 mA
IOL = 75 mA
VI = VCC or GND 5.5 V

VI = VCC or GND, IO = 0 5.5 V 2 40 20 µA
VI = VCC or GND 5 V 4.5 pF

†
†

†
†

4.5 V 4.4 4.4 4.4

5.5 V 5.4 5.4 5.4

4.5 V 3.86 3.7 3.76

5.5 V 4.86 4.7 4.76

5.5 V 3.85

5.5 V 3.85
3 V 0.002 0.1 0.1 0.1

4.5 V 0.001 0.1 0.1 0.1

5.5 V 0.001 0.1 0.1 0.1

4.5 V 0.36 0.5 0.44

5.5 V 0.36 0.5 0.44

5.5 V 1.65

5.5 V 1.65

TA = 25°C SN54AC08 SN74AC08

MIN TYP MAX MIN MAX MIN MAX

"

0.1

"

1

"

1 µA

switching characteristics over recommended operating free-air temperature range,
V

= 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1)

CC

TA = 25°C SN54AC08 SN74AC08

MIN TYP MAX MIN MAX MIN MAX

1.5 7.5 9.5 1 12.5 1 10

1.5 7 8.5 1 11.5 1 9

t

PLH

t

PHL

FROM TO

(INPUT) (OUTPUT)

switching characteristics over recommended operating free-air temperature range,
V

= 5 V " 0.5 V (unless otherwise noted) (see Figure 1)

CC

TA = 25°C SN54AC08 SN74AC08

MIN TYP MAX MIN MAX MIN MAX

1.5 5.5 7.5 1 9 1 8.5

1.5 5.5 7 1 8.5 1 7.5

t

PLH

t

PHL

FROM TO

(INPUT) (OUTPUT)

operating characteristics, VCC = 5 V, TA = 25°C

PARAMETER TEST CONDITIONS TYP UNIT

CpdPower dissipation capacitance CL = 50 pF, f = 1 MHz 20 pF

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3

SN54AC08, SN74AC08
QUADRUPLE 2-INPUT POSITIVE-AND GATES

SCAS536B – SEPTEMBER 1995 – REVISED SEPTEMBER 1996

PARAMETER MEASUREMENT INFORMATION

S1TEST

t

PLH/tPHL

From Output
Under Test

CL = 50 pF

(see Note A)

LOAD CIRCUIT

NOTES: A. CL includes probe and jig capacitance.

B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr v 2.5 ns, tf v 2.5 ns.
C. The outputs are measured one at a time with one input transition per measurement.

Open

500 Ω

500 Ω

Figure 1. Load Circuit and Voltage Waveforms

S1

2 × V

Open

CC

Input

(see Note B)

In-Phase

Output

Out-of-Phase

Output

50% V

CC

t

PLH

50% V

t

PHL

50% V

VOLTAGE WAVEFORMS

CC

CC

50 % V

CC

t

PHL

50% V

t

PLH

50% V

CC

CC

V

0 V

V

V

V

V

CC

OH

OL

OH

OL

4

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