Diodes 74AHC14 User Manual

HEX INVERTERS WITH SCHMITT TRIGGER INPUTS

Description

The 74AHC14 provides provides six independent Schmitt trigger input

inverters 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:

AY =

Pin Assignments

1A

1Y

2A

2Y

3A

( Top View )

1

2

3

4

5

14

13

12

11

10

Features

• Wide Supply Voltage Range from 2.0V to 5.5 V

• Outputs Sink or Source 8mA at V

• CMOS Low Power Consumption

NEW PRODUCT

• Schmitt Trigger Action at All Inputs

• Typical hysteresis of 1V allows for transformation of slow

changing input signals to sharply defined, fast transition output

signals.

• 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.

74AHC14

Document number: DS35342 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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3Y

GND

6

7

SO-14 / TSSOP-14

9

8

74AHC14

Vcc

6A

6Y

5A

5Y

4A

4Y

January 2013

© Diodes Incorporated

Pin Descriptions

NEW PRODUCT

Pin

Number

1 1A Data Input

2 1Y Data Output

3 2A Data Input

4 2Y Data Output

5 3A Data Input

6 3Y Data Output

7 GND Ground

8 4Y Data Output

9 4A Data Input

10 5Y Data Output

11 5A Data Input

12 6Y Data Output

13 6A Data Input

14 Vcc Supply Voltage

Pin Name Function

Function Table

Input Output

A Y

L H

H L

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. V

5. Unused inputs should be held at V

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

CC

Logic Diagram

5A

6A

= +25°C, unless otherwise specified.)

A

< -0.5V

I

+0.5V

O VCC

to the extent the maximum clamp current is exceeded.

or Ground.

CC

1

3

5

9

11 10

13

-20 mA

-20 mA

25 mA

+/- 25 mA

75 mA

12

74AHC14

2

1Y1A

4

2Y2A

6

3Y3A

8

4Y4A

5Y

6Y

74AHC14

Document number: DS35342 Rev 3 - 2

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Recommended Operating Conditions (Note 5) @T

Symbol Parameter Conditions Min Max Unit

VCC

VI

VO

TA

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

Operating Free-Air Temperature -40 +125 °C

Electrical Characteristics (@T

Symbol Parameter Test Conditions

Positive-Going

VT+

NEW PRODUCT

VT-

∆VT

VOH

VOL

II

ICC

Input Threshold

Negative-Going
Input Threshold

Hysteresis

High Level Output

Low-level Output

Input Current

Supply Current

Supply Voltage 2.0 5.5 V

Input Voltage 0 5.5 V

Output Voltage 0

= +25°C, unless otherwise specified.)

A

Voltage

Voltage

(V

T+

Voltage

Voltage

- V

T-)

VI = GND to 5.5V

VI = GND or V

I

= -50μA

OH

IOH = -50μA

IOH = -50μA

IOH = -4mA

IOH = -8mA

I

= 50μA

OL

IOL = 50μA

IOL = 50μA

IOL = 4mA

IOL = 8mA

CC, IO

Operating Characteristics

Parameter

Cpd

Ci

Power Dissipation

Capacitance per Gate

Input Capacitance

Test

Conditions

f = 1MHz 10.4 12.3 13 pF

Vi = V

– or GND

CC

= 0

74AHC14

= +25°C, unless otherwise specified.)

A

VCC

V

CC

3V 2.2 2.2

4.5V 3.15 3.15

5.5V 3.85 3.85

3V 0.9 0.9

4.5V 1.35 1.35

5.5V 1.65 1.65

3V 0.3 1.2 0.25 1.2

4.5V 0.4 1.4 0.35 1.4

5.5V 0.5 1.6 0.45 1.6

2.0V 1.9 1.9

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 0.1 0.1

3.0V 0.1 0.1

4.5V 0.1 0.1

3.0V 0.44 0.55

4.5V 0.44 0.55

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

TA = -40°C to +85°C TA = -40°C to +125°C

Min Max Min Max

Unit

V

Unit

V

V

V

V

V

74AHC14

Document number: DS35342 Rev 3 - 2

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January 2013

© Diodes Incorporated