Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74AHC14
CMOS IC
HEX SCHMITT-TRIGGER
INVERTERS

DESCRIPTION
The U74AHC14 is hex Schmitt-trigger inverters and each inverter
provides the function Y= A .

FEATURES
* Operation Voltage Range: 2V~5.5V
* Max tpd of 8.6ns at 5 V(CL=15pF)
* High Noise Immunity
* Low Power Dissipation

ORDERING INFORMATION
Ordering Number
U74AHC14G-S14-R
U74AHC14G-P14-R

Package
SOP-14
TSSOP-14
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 5
QW-R502-386.C
U74AHC14


CMOS IC
PIN CONFIGURATION
1A 1
14 VCC
1Y 2
13 6A
2A 3
12 6Y
2Y 4
11 5A
3A 5
10 5Y
3Y 6
9
4A
GND 7
8
4Y
FUNCTION TABLE (each gate)
INPUT A
OUTPUT Y
L
H
H
L
Note: H: HIGH voltage level; L: LOW voltage level.

LOGIC SYMBOL
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R502-386.C
U74AHC14

CMOS IC
ABSOLUTE MAXIMUM RATING (unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5 ~ +7
V
Input Voltage
VIN
-0.5 ~ +7
V
Output Voltage
VOUT
-0.5 ~ VCC +0.5
V
Input Clamp Current
IIK
-20
mA
Output Clamp Current
IOK
±20
mA
Output Sink Current
IOUT
±25
mA
VCC or GND Current
ICC
±50
mA
Storage Temperature
TSTG
-65 ~ + 150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Thermal Resistance Junction-Ambient

SYMBOL
SOP-14
TSSOP-14
θJA
RATINGS
86
113
UNIT
°C/W
°C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
SYMBOL
VCC
VIN
VOUT
High-Level Input Current
IOH
Low-Level Input Current
IOL
Operating Temperature
TA
CONDITIONS
VCC=2V
VCC=3.3V±0.3V
VCC=5V±0.5V
VCC=2V
VCC=3.3V±0.3V
VCC=5V±0.5V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
2.0
0
0
-40
TYP
MAX UNIT
5.5
V
5.5
V
VCC
V
-50
μA
-4
mA
-8
mA
50
μA
4
mA
8
mA
+85
°C
3 of 5
QW-R502-386.C
U74AHC14

CMOS IC
STATIC CHARACTERISTICS (TA=25°C)
PARAMETER
SYMBOL
Positive-going Input Threshold
Voltage
VT+
Negative-going Input Threshold
Voltage
VT-
Hysteresis(VT+-VT-)
∆VT
TEST CONDITIONS
VCC =3.0V
VCC =4.5V
VCC =5.5V
VCC =3.0V
VCC =4.5V
VCC =5.5V
VCC =3.0V
VCC =4.5V
VCC =5.5V
VCC =2.0V
VCC =3.0V
VCC =4.5V
IOH =-4 mA
VCC =3.0V
IOH =-8mA
VCC =4.5V
VCC =2.0V
VCC =3.0V
IOL=50μA
VCC =4.5V
IOL =4 mA
VCC =3.0V
IOL =8mA
VCC =4.5V
VCC =0V to 5.5V,VIN=5.5V or GND
VCC =5.5V,VIN=VCC or GND,IOUT=0
VIN=VCC or GND
IOH=-50μA
High-Level Output Voltage
VOH
Low-Level Output Voltage
VOL
Input Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK)
IQ
CI

TYP
2
MAX UNIT
2.2
V
3.15
V
3.85
V
1.9
V
2.75
V
3.35
V
1.2
V
1.4
V
1.6
V
V
V
V
V
V
0.1
V
0.1
V
0.1
V
0.36
V
0.36
V
±0.1
μA
2
μA
10
pF
MIN
TYP
8.3
10.8
5.5
7
MAX UNIT
12.8
ns
16.3
ns
8.6
ns
10.6
ns
MIN
TYP
9
MAX UNIT
pF
SWITCHING CHARACTERISTICS (TA=25°C)
PARAMETER
Propagation Delay, From
Input(A) To Output(Y)

MIN
1.2
1.75
2.15
0.9
1.35
1.65
0.3
0.4
0.5
1.9
2.9
4.4
2.58
3.94
SYMBOL
tPLH/tPHL
tPLH/tPHL
TEST CONDITIONS
CL=15 pF
VCC =3.3±0.3 V
CL=50 pF
CL=15 pF
VCC =5.0±0.5 V
CL=50 pF
OPERATING CHARACTERISTICS (TA=25°С)
PARAMETER
Power Dissipation Capacitance
SYMBOL
TEST CONDITIONS
CPD
No Load, f=1MHz
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R502-386.C
U74AHC14

CMOS IC
TEST CIRCUIT AND WAVEFORMS
Test circuit for measuring propagation delay
Waveforms showing the Input(A) to Output(Y) propagation delays
Note: CL includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, Zo = 50Ω,
tr ≤3ns, tf ≤3ns.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R502-386.C