Diodes 74HCT14 User Manual

74HCT14

HEX INVERTERS WITH SCHMITT TRIGGER INPUTS

Description

The 74HCT14 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 4.5V to 5.5V.

The gates perform the Boolean function:

AY =

Pin Assignments

Features

• Wide Supply Voltage Range from 4.5V to 5.5V

• Pin Compatible with Low Power Schottky (LSTTL)

• Inputs Are TTL Voltage Level Compatible

• Sinks or sources 4mA at V

• CMOS Low Power Consumption

• Schmitt Trigger Action at All Inputs

• 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)

• 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.

74HCT14

Document number: DS35333 Rev. 2 - 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

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Pin Descriptions

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

Pin Name Function

V

CC

Supply Voltage

Logic Diagram

1

2

1Y1A

74HCT14

3

5

9

11 10

5A

13

6A

Function Table

Input Output

A Y

H L

L H

74HCT14

Document number: DS35333 Rev. 2 - 2

12

4

2Y2A

6

3Y3A

8

4Y4A

5Y

6Y

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74HCT14

Absolute Maximum Ratings (Note 4) (@T

= +25°C, unless otherwise specified.)

A

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 VI < -0.5V or Vi > VCC +0.5V

IOK Output Clamp Current VO < -0.5V or VO > VCC +0.5V

IO Continuous Output Current -0.5V < V

ICC Continuous Current Through VCC

I

GND

TJ

T

STG

P

TOT

Notes: 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.

5. Input Voltage cannot exceed V

Supply Voltage Range -0.5 to +7.0 V

Input Voltage Range (Note 5) -0.5 to +7.0 V

±20 mA

±20 mA

O VCC

+0.5V

+/- 25 mA

50 mA

Continuous Current Through GND -50 mA

Operating Junction Temperature -40 to +150 °C

Storage Temperature -65 to +150 °C

Total Power Dissipation 500 mW

to the extent the maximum clamp current is exceeded.

CC

Recommended Operating Conditions (Note 6) (@T

= +25°C, unless otherwise specified.)

A

Symbol Parameter Conditions Min Max Unit

VCC

VI

VO

Supply Voltage

Input Voltage 0

Output Voltage 0

Δt/ΔV Input Transition Rise or Fall Rate

TA

Note: 6. Unused inputs should be held at VCC or Ground.

Operating Free-Air Temperature

V

= 4.5V to 5.5V

CC

4.5 5.5 V

VCC

VCC

V

V

— 500 ns/V

-40 +125 °C

Electrical Characteristics (@T

= +25°C, unless otherwise specified.)

A

Symbol Parameter Test Conditions

Positive-Going Input

VT+

Threshold Voltage

Negative-Going Input

VT-

Threshold Voltage

∆VT Hysteresis (V

High-Level Output

VOH

Voltage

Low Level Output

VOL

Voltage

Input Current

II

Supply Current

ICC

ΔICC

Additional Supply
Current

T+

- V

T-)

= -20μA

I

OH

IOH = -4mA

= 20μA

I

OL

IOL = 4mA

V

= GND to 6.0V

I

VI = GND or VCC, IO = 0

One input at V
Other pins at V

-2.1V

CC

or GND

CC

V

CC

A

Min Max Min Max

4.5V 1.9 1.9

5.5V 2.1 2.1

4.5V 0.5 0.5

5.5V 0.6 0.6

4.5V 0.4 0.4

5.5V 0.4 0.4

4.5V 4.4 4.4

4.5V 3.84 3.70

4.5V 0.1 0.1

4.5V 0.33 0.4

6.0V ± 1 ± 1 μA

6.0V 20

4.5V to 5.5V 135

40

147 μA

Unit

V

V

V

V

V

μA

= -40°C to +85°C TA = -40°C to +125°C

T

74HCT14

Document number: DS35333 Rev. 2 - 2

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