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

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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

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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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