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74AHCT14

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74AHCT14

HEX INVERTERS WITH SCHMITT TRIGGER INPUTS

Description

The 74AHCT14 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 =

Features

• Wide Supply Voltage Range from 4.5V to 5.5V

• Inputs Are TTL Voltage Level Compatible

• Outputs Sink or Source 8mA at VCC = 4.5V

• 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)

• 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)

Pin Assignments

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

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.

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

74AHCT14

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74AHCT14

Pin Descriptions

Number Pin Name Function

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

Function Table

Input Output

A Y

L H

H L

Logic Diagram

Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.)

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 Supply Voltage Range -0.5 to +7.0 V

VI Input Voltage Range -0.5 to +7.0 V

IIK Input Clamp Current VI < -0.5V -20 mA

IOK Output Clamp Current VO < 0 V -20 mA

IOK Output Clamp Current VO > VCC 20 mA

IO Continuous Output Current 0 V < VO < VCC +/- 25 mA

ICC Continuous Current Through VCC 50 mA

IGND Continuous Current Through GND -50 mA

TJ Operating Junction Temperature -40 to +150 °C

TSTG Storage Temperature -65 to +150 °C

PTOT Total Power Dissipation 500 mW

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.

74AHCT14

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74AHCT14

Recommended Operating Conditions (Note 5) (@TA = +25°C, unless otherwise specified.)

Symbol Parameter Min Max Unit

VCC Supply Voltage 4.5 5.5 V

VI Input Voltage 0 5.5 V

VO Output Voltage 0 VCC V

Δt/ΔV Input Transition Rise or Fall Rate 20 ns/V

TA Operating Free-Air Temperature -40 +125 °C

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

Electrical Characteristics (@TA = +25°C, unless otherwise specified.)

Symbol Parameter Test Conditions VCC TA = -40°C to +85°C TA = -40°C to +125°C Unit

Min Max Min Max

VT+ Positive-Going Input

Threshold Voltage 4.5V 1.9 1.9

V

5.5V 2.1 2.1

VT-

Negative-Going

Input Threshold

Voltage

4.5V 0.5 0.5

V

5.5V 0.6 0.55

∆VT Hysteresis

(VT+ - VT-) 4.5V 0.5 0.5

V

5.5V 0.6 0.6

VOH High-Level Output

Voltage

IOH = -50μA 4.5V 4.4 4.4

V

IOH = -8mA 4.5V 3.80 3.70

VOL Low-Level Output

Voltage

IOL = 50μA 4.5V 0.1 0.1

V

IOL = 8mA 4.5V 0.44 0.55

II Input Current VI = GND to 5.5V 3.6V ±1 ±2 μA

ICC Supply Current VI = GND or VCC, IO = 0 3.6V 20 40 μA

ΔICC Additional Supply

Current

One input at VCC -2.1V

Other pins at VCC or

GND.

4.5V to 5.5V 1.35 5 mA

Operating Characteristics

Parameter Test

Conditions

VCC = 5.5V Unit

Typ

Cpd Power Dissipation

Capacitance per Gate f = 1 MHz 14.8 pF

Ci Input Capacitance Vi = VCC – or

GND 4.0 pF

Switching Characteristics

Symbol Parameter Test

Conditions VCC TA = +25°C -40°C to +85°C -40°C to +125°C Unit

Min Typ Max Min Max Min Max

tPD Propagation

Delay AN to YN

Figure 1

CL = 15pF 4.5V to 5.5V 0.5 3.4 6.9 0.5 8.0 0.5 9.0

ns

Figure 1

CL = 50pF 4.5V to 5.5V 0.5 4.9 10.0 0.5 10.0 0.5 11.0

74AHCT14

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Parameter Measurement Information

VCC Inputs VM

Inputs

VM

Outputs CL

VI t

r/tf

4.5V to 5.5V 3.0 V 3ns 1.5V VCC/2 15pF, 50pF

Voltage Waveform

Pulse Duration

Voltage Waveform

Propagation Delay Times

Inverting and Non Inverting Outputs

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. tPLH and tPHL are the same as tPD.

74AHCT14

Document number: DS35352 Rev. 3 - 2

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74AHCT14

Ordering Information

Part Number Package Code Packaging 7” Tape and Reel

Quantity Part Number Suffix

74AHCT14S14-13 S14 SO-14 2500/Tape & Reel -13

74AHCT14T14-13 T14 TSSOP-14 2500/Tape & Reel -13

Marking Information

(1) SO-14, TSSOP-14

Part Number Package

74AHCT14S14 SO-14

74AHCT14T14 TSSOP-14

74AHCT14

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74AHCT14

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

Package Type: TSSOP-14

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

θ 0° 8°

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

EH

A

A2

e

D

A1

L

Gauge Plane

Detail “A”

7°(4x)

θ

B

G

L

A

K

a1

D

C

a2

F

F1

Pin# 1 Indent

Detail ‘A’

0

.

25

Gauge Plane

Seating Plane

B

74AHCT14

Document number: DS35352 Rev. 3 - 2

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74AHCT14

Suggested Pad Layout

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

Package Type: SO-14

Package Type: TSSOP-14

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

X

C1

C2

Y

X

C1

C2

Y

74AHCT14

Document number: DS35352 Rev. 3 - 2

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74AHCT14

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