Diodes 74AHC08 User Manual

QUADRUPLE 2-INPUT AND GATES

Description

The 74AHC08 provides provides four independent 2-input AND gates

with standard push-pull outputs. The device is designed for operation

with a power supply range of 2.0V to 5.5V. The inputs are tolerant to

5.5V allowing this device to be used in a mixed voltage environment.

The gates perform the Boolean function:

BAY •=

or

BAY +=

Pin Assignments

Features

• Wide Supply Voltage Range from 2.0V to 5.5 V

• Outputs Sink or Source 8 mA at V

• CMOS Low Power Consumption

NEW PRODUCT

• Schmitt Trigger Action at All Inputs

• Inputs can be driven by 3.3V or 5.5V allowing for voltage

translation applications.

• ESD Protection Exceeds JESD 22

 200-V Machine Model (A115-A)

 2000-V Human Body Model (A114-A)

 Exceeds 1000-V Charged Device Model (C101C)

• Latch-Up Exceeds 250mA per JESD 78, Class II

• Range of Package Options SO-14 and TSSOP-14

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.

74AHC08

Document number: DS35341 Rev. 3 - 2

= 4.5V

CC

Applications

• General Purpose Logic

• Wide array of products such as:

 PCs, Networking, Notebooks, Netbooks

 Computer Peripherals, Hard Drives, CD/DVD ROM

 TV, DVD, DVR, Set Top Box

Click here for ordering information, located at the end of datasheet

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74AHC08

January 2013

© Diodes Incorporated

Pin Descriptions

NEW PRODUCT

Pin

Number

1 1A Data Input

2 1B Data Input

3 1Y Data Output

4 2A Data Input

5 2B Data Input

6 2Y Data Output

7 GND Ground

8 3Y Data Output

9 3A Data Input

10 3B Data Input

11 4Y Data Output

12 4A Data Input

13 4B Data Input

14

Pin Name Function

V

CC

Supply Voltage

Function Table

Inputs Output

A B Y

L L L

L H L

H L L

H H H

Absolute Maximum Ratings (Note 4) (@T

Symbol Description Rating Unit

ESD HBM Human Body Model ESD Protection 2 KV

ESD CDM Charged Device Model ESD Protection 1 KV

ESD MM Machine Model ESD Protection 200 V

VCC

VI

IIK Input Clamp Current V

IOK Output Clamp Current VO < -0.5V

IOK Output Clamp Current VO > VCC +0.5V

IO Continuous Output Current - 0.5V < V

ICC Continuous Current Through VCC

I

GND

TJ

T

STG

P

TOT

Note: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should
be within recommend values.

Supply Voltage Range -0.5 to +7.0 V

Input Voltage Range -0.5 to +7.0 V

Continuous Current Through GND -75 mA

Operating Junction Temperature -40 to +150 °C

Storage Temperature -65 to +150 °C

Total Power Dissipation 500 mW

74AHC08

Document number: DS35341 Rev. 3 - 2

< -0.5V

I

Logic Diagram

= +25°C, unless otherwise specified.)

A

+0.5V

O VCC

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74AHC08

-20 mA

-20 mA

25 mA

+/- 25 mA

75 mA

January 2013

© Diodes Incorporated

Recommended Operating Conditions (Note 5) (@T

Symbol Parameter Conditions Min Max Unit

VCC

VI

VO

Δt/ΔV Input Transition Rise or Fall Rate

TA

Note: 5. Unused inputs should be held at VCC or Ground.

Electrical Characteristics (@T

Symbol Parameter Test Conditions

NEW PRODUCT

High-Level Input

V

IH

Voltage

Low-Level Input

VIL

Voltage

High-Level Output

VOH

Voltage

Low-Level Output

VOL

Voltage

Input Current

II

Supply Current

ICC

Supply Voltage 2.0 5.5 V

Input Voltage 0 5.5 V

Output Voltage 0

Operating Free-Air Temperature -40 +125 °C

= +25°C, unless otherwise specified.)

A

5.5V 3.85 3.85

= -50μA

I

OH

IOH = -50μA

IOH = -50μA

IOH = -4mA

IOH = -8mA

= 50μA

I

OL

IOL = 50μA

IOL = 50μA

IOL = 4mA

IOL = 8mA

VI =GND to 5.5V

VI = GND or V

CC, IO

=0

Operating Characteristics

Parameter

Cpd

Ci

Power Dissipation

Capacitance per Gate

Input Capacitance

Test

Conditions

f = 1 MHz 9.7 11.0 15 pF

Vi = V

– or GND

CC

74AHC08

= +25°C, unless otherwise specified.)

A

VCC

V

= 3.0V to 3.6V

CC

VCC = 4.5V to 5.5V

= -40°C to +85°C TA = -40°C to +125°C

T

V

CC

2.0V

3.0V

2.0V

3.0V

5.5V

2.0V

3.0V 2.9 2.9

4.5V 4.4 4.4

3.0V 2.48 2.40

4.5V 3.80 3.70

2.0V

3.0V 0.1 0.1

4.5V 0.1 0.1

3.0V 0.44 0.55

4.5V

3.6V ±1 ±2 μA

3.6V 20 40 μA

= 2.0V VCC = 3.3V VCC = 5V

V

CC

Typ Typ Typ

4.0 4.0 4.0 pF

A

Min Max Min Max

1.5 1.5

2.1 2.1

0.5 0.5

0.9 0.9

1.65 1.65

1.9 1.9

0.1 0.1

0.44 0.55

100

20

Unit

V

ns/V

Unit

V

V

V

V

74AHC08

Document number: DS35341 Rev. 3 - 2

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Switching Characteristics

Symbol Parameter

tPD

Propagation

Delay A

to YN

N

Test

Conditions

Figure 1

C

= 15pF

L

Figure 1

C

= 50pF

L

VCC

3.0V to 3.6V 0.5 4.5 7.9 0.5 9.5 0.5 10.0

4.5V to 5.5V 0.5 3.2 5.5 0.5 6.5 0.5 7.0

3.0V to 3.6V 0.5 6.0 11.4 0.5 13.0 0.5 14.5

4.5V to 5.5V 0.5 4.5 7.5 0.5 8.5 0.5 9.5

Parameter Measurement Information

TA = +25°C

Min Typ Max

74AHC08

-40°C to +85°C -40°C to +125°C

Min Max Min Max

Unit

ns

NEW PRODUCT

VCC

3.3V -3.6V

4.5V to 5.5V

V

V

Inputs

VI t

CC

CC

r/tf

3ns

3ns

Voltage Waveform

Pulse Duration

VM C

VCC/2

VCC/2

L

15pF, 50pF

15pF, 50pF

Figure 1 Load Circuit and Voltage Waveforms

Notes: A . Includes test lead and test apparatus capacitance.
B. All pulses are supplied at pulse repetition rate ≤ 1 MHz.
C. Inputs are measured separately one transition per measurement.

D. t

PLH

and t

74AHC08

Document number: DS35341 Rev. 3 - 2

are the same as tPD.

PHL

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Voltage Waveform

Propagation Delay Times

Inverting and Non Inverting Outputs

January 2013

© Diodes Incorporated

Ordering Information

74AHC08

Device

74AHC08S14-13 S14 SO-14 2500/Tape & Reel -13

74AHC08T14-13 T14 TSSOP-14 2500/Tape & Reel -13

NEW PRODUCT

Marking Information

(1) SO-14, TSSOP-14

74AHC08

Document number: DS35341 Rev. 3 - 2

Package Code Packaging

Part Number Package

74AHC08S14 SO-14

74AHC08T14 TSSOP-14

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7” Tape and Reel

Quantity Part Number Suffix

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Package Outline Dimensions (All dimensions in mm.)

Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.

Package Type: SO-14

H

E

Gauge Plane

L

Detail “A”

7

°

(

4

D

x

)

A2

A

NEW PRODUCT

B

e

A1

Detail “A”

Package Type: TSSOP-14

74AHC08

Document number: DS35341 Rev. 3 - 2

Pin# 1 Indent

B

L

G

K

A

a

1

D

C

F

Detail ‘A’

F1

2

a

Detail ‘A’

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θ

5
2

.

0

Gauge Plane
Seating Plane

SO-14

Dim Min Max

A 1.47 1.73
A1 0.10 0.25
A2 1.45 Typ

B 0.33 0.51

D 8.53 8.74

E 3.80 3.99

e 1.27 Typ

H 5.80 6.20

L 0.38 1.27

0° 8°

θ

All Dimensions in mm

TSSOP-14

Dim Min Max

a1 7° (4X)
a2

0°

8°

A 4.9 5.10
B 4.30 4.50
C

⎯

1.2

D 0.8 1.05
F 1.00 Typ

F1 0.45 0.75

G 0.65 Typ
K 0.19 0.30
L 6.40 Typ

All Dimensions in mm

74AHC08

January 2013

© Diodes Incorporated

Suggested Pad Layout

Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.

Package Type: SO-14

NEW PRODUCT

X

C1

C2

Y

Package Type: TSSOP-14

X

C2

Y

74AHC08

Document number: DS35341 Rev. 3 - 2

C1

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Dimensions Value (in mm)

X 0.60

Y 1.50
C1 5.4
C2 1.27

Dimensions Value (in mm)

X 0.45

Y 1.45
C1 5.9
C2 0.65

74AHC08

January 2013

© Diodes Incorporated

74AHC08

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

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NEW PRODUCT

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final and determinative format released by Diodes Incorporated.

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written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

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1. are intended to implant into the body, or

labeling can be reasonably expected to result in significant injury to the user.

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failure of the life support device or to affect its safety or effectiveness.

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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.

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2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the

IMPORTANT NOTICE

LIFE SUPPORT

74AHC08

Document number: DS35341 Rev. 3 - 2

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