74AHC14

HEX INVERTERS WITH SCHMITT TRIGGER INPUTS

Description Pin Assignments

The 74AHC14 provides provides six independent Schmitt trigger input
inverters with standard push-pull outputs. The device is designed for ( Top View )
operation with a power supply range of 2.0V to 5.5V. The inputs are Vcc
1A 1 14
tolerant to 5.5V allowing this device to be used in a mixed voltage
environment. 1Y 2 13 6A
The gates perform the Boolean function: 2A 3 12 6Y
NEW PRODUCT

Y=A 2Y 4 11 5A
3A 5 10 5Y
Features
3Y 6 9 4A
• Wide Supply Voltage Range from 2.0V to 5.5 V
• Outputs Sink or Source 8mA at VCC = 4.5V GND 7 8 4Y
• CMOS Low Power Consumption
• Schmitt Trigger Action at All Inputs
SO-14 / TSSOP-14
• Typical hysteresis of 1V allows for transformation of slow
changing input signals to sharply defined, fast transition output
Applications
signals.
• Inputs can be driven by 3.3V or 5.5V allowing for voltage • General Purpose Logic
translation applications. • Wide array of products such as:
• ESD Protection Exceeds JESD 22 ƒ PCs, Networking, Notebooks, Netbooks
ƒ 200-V Machine Model (A115-A) ƒ Computer Peripherals, Hard Drives, CD/DVD ROM
ƒ 2000-V Human Body Model (A114-A) ƒ TV, DVD, DVR, Set Top Box
ƒ 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.

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

74AHC14 1 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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Pin Descriptions Logic Diagram

Pin 1 2
Pin Name Function
Number 1A 1Y
1 1A Data Input
2 1Y Data Output
3 4
3 2A Data Input 2A 2Y
4 2Y Data Output
5 3A Data Input 5 6
6 3Y Data Output 3A 3Y
NEW PRODUCT

7 GND Ground
8 4Y Data Output 9 8
9 4A Data Input 4A 4Y
10 5Y Data Output
11 5A Data Input 11 10
12 6Y Data Output 5A 5Y
13 6A Data Input
14 Vcc Supply Voltage 13 12
6A 6Y

Function Table
Input Output
A Y
L H
H L

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 < -0.5V -20 mA
IOK Output Clamp Current VO > VCC +0.5V 25 mA
IO Continuous Output Current -0.5V < VO VCC +0.5V +/- 25 mA
ICC Continuous Current Through VCC 75 mA
IGND Continuous Current Through GND -75 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. VCC to the extent the maximum clamp current is exceeded.
5. Unused inputs should be held at VCC or Ground.

74AHC14 2 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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Recommended Operating Conditions (Note 5) @TA = +25°C, unless otherwise specified.)

Symbol Parameter Conditions Min Max Unit
VCC Supply Voltage 2.0 5.5 V
VI Input Voltage 0 5.5 V
VO Output Voltage 0 VCC V
TA Operating Free-Air Temperature -40 +125 °C
Note: 5. Unused inputs should be held at VCC or Ground.
NEW PRODUCT

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

TA = -40°C to +85°C TA = -40°C to +125°C
Symbol Parameter Test Conditions VCC Unit
Min Max Min Max
Positive-Going 3V 2.2 2.2
VT+ Input Threshold 4.5V 3.15 3.15 V
Voltage 5.5V 3.85 3.85
Negative-Going 3V 0.9 0.9
VT- Input Threshold 4.5V 1.35 1.35 V
Voltage 5.5V 1.65 1.65
3V 0.3 1.2 0.25 1.2
Hysteresis
∆VT 4.5V 0.4 1.4 0.35 1.4 V
(VT+ - VT-)
5.5V 0.5 1.6 0.45 1.6
IOH = -50μA 2.0V 1.9 1.9
IOH = -50μA 3.0V 2.9 2.9
High Level Output
VOH IOH = -50μA 4.5V 4.4 4.4 V
Voltage
IOH = -4mA 3.0V 2.48 2.40
IOH = -8mA 4.5V 3.80 3.70
IOL = 50μA 2.0V 0.1 0.1
IOL = 50μA 3.0V 0.1 0.1
Low-level Output
VOL IOL = 50μA 4.5V 0.1 0.1 V
Voltage
IOL = 4mA 3.0V 0.44 0.55
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

Operating Characteristics

Test VCC = 2.0V VCC = 3.3V VCC = 5V

Parameter Unit
Conditions Typ Typ Typ
Power Dissipation
Cpd f = 1MHz 10.4 12.3 13 pF
Capacitance per Gate
Ci Input Capacitance Vi = VCC – or GND 4.0 4.0 4.0 pF

74AHC14 3 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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Switching Characteristics

Test TA = +25°C -40°C to +85°C -40°C to +125°C

Symbol Parameter VCC Unit
Conditions Min Typ Max Min Max Min Max
Figure 1 3.0V to 3.6V 0.5 4.3 12.8 0.5 15.0 0.5 16.0
Propagation CL = 15pF 4.5V to 5.5V 0.5 3.2 8.6 0.5 10.0 0.5 11.0
tPD ns
Delay AN to YN Figure 1 3.0V to 3.6V 0.5 5.8 16.3 0.5 18.0 0.5 20.5
CL = 50pF 4.5V to 5.5V 0.5 4.2 10.6 0.5 12.0 0.5 13.5
NEW PRODUCT

Parameter Measurement Information

Inputs
VCC VM CL
VI tr/tf
3.3V -3.6V VCC 3ns VCC/2 15pF, 50pF
4.5V to 5.5V VCC 3ns 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.

74AHC14 4 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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Ordering Information
NEW PRODUCT

7” Tape and Reel

Device Package Code Packaging
Quantity Part Number Suffix
74AHC14S14-13 S14 SO-14 2500/Tape & Reel -13
74AHC14T14-13 T14 TSSOP-14 2500/Tape & Reel -13

Marking Information
(1) SO-14, TSSOP-14

Part Number Package

74AHC14S14 SO-14
74AHC14T14 TSSOP-14

74AHC14 5 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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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

SO-14
Dim Min Max
E H Gauge Plane A 1.47 1.73
A1 0.10 0.25
NEW PRODUCT

L θ
A2 1.45 Typ
Detail “A” B 0.33 0.51
D 8.53 8.74
E 3.80 3.99
D A2
7°
(4
A e 1.27 Typ
x)
H 5.80 6.20
L 0.38 1.27
B e
θ 0° 8°
Detail “A” All Dimensions in mm
A1

Package Type: TSSOP-14

TSSOP-14
Dim Min Max
0.25

a1 7° (4X)
Pin# 1 Indent Gauge Plane a2 0° 8°
B L Seating Plane A 4.9 5.10
F1
B 4.30 4.50
a2

F C ⎯ 1.2
Detail ‘A’ D 0.8 1.05
F 1.00 Typ
G
F1 0.45 0.75
K
G 0.65 Typ
A
K 0.19 0.30
a1 D L 6.40 Typ
C All Dimensions in mm

Detail ‘A’

74AHC14 6 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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Suggested Pad Layout

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

Package Type: SO-14

X
Dimensions Value (in mm)
X 0.60
NEW PRODUCT

Y 1.50
C1 5.4
C2 1.27
C1

C2

Package Type: TSSOP-14

Dimensions Value (in mm)

X 0.45
C1 Y 1.45
C1 5.9
C2 C2 0.65

74AHC14 7 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated
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74AHC14 8 of 8 January 2013

Document number: DS35342 Rev 3 - 2 www.diodes.com © Diodes Incorporated