UNISONIC TECHNOLOGIES CO., LTD
U74HCT14
HIGH-SPEED CMOS LOGIC
HEX INVERTING SCHMITT
TRIGGER
DESCRIPTION
The UTC 74HCT14 each contain six inverting Schmitt triggers in
one package. Each of them perform the Boolean function Y=A.
FEATURES
* Widely range of input rise and fall time
* high noise immunity
* Fan-out parameters(over temperature range)
up to 10 LSTTL Loads
* Low power consumption
* Wide range operation 4.5V ~ 5.5V
CMOS IC
SOP-14
DIP-14
*Pb-free plating product number: 74HCT14L
ORDERING INFORMATION
Order Number
Normal Lead Free Plating
U74HCT14-D14-T U74HCT14L-D14-T DIP-14 Tube
U74HCT14-S14-R U74HCT14L-S14-R SOP-14 Tape Reel
U74HCT14-S14-T U74HCT14L-S14-T SOP-14 Tube
U74HCT1 4 L-D1 4-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
Package Packing
(1) R: Tape Reel, T: Tub e
(2) D14: DIP-14, S14: SOP-14
(3) L: Lead Free Plating, Blank: Pb/Sn
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Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R502-090,A
U74HCT14
PIN CONFIGURATION
CMOS IC
FUNCTIONAL DIAGRAM
V
CC
14 13 12 11 10 9 8
1234567
1A 1Y 2A 2Y 3A 3Y GND
1
1A
1Y
2
2A
3
2Y
4
3A
5
3Y
6
7
6A 6Y 5A 5Y 4A 4Y
14
13
12
11
10
9
8GND
V
6A
6Y
5A
5Y
4A
4Y
CC
TRUTH TABLE
INPUT(A) OUTPUT(Y)
L H
H L
H=High level
L=Low Level
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QW-R502-090,A
U74HCT14
LOGIC DIAGRAM
CMOS IC
AY
V
V
OUT
CC
V
TH
V
TH=VIH-VIL
GND
VILV
V
IN
IH
V
IH
V
CC
V
IN
GND
V
CC
V
OUT
GND
Figure 1. Hysteresis Definition, Characteristic, And Test Setup
V
IL
V
TH
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QW-R502-090,A
U74HCT14
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
DC Supply Voltage VCC -0.5V~7V V
DC Input Clamp Current For VIN < -0.5V or VIN > VCC + 0.5V IIK ±20 mA
DC Output Clamp Current For V
DC Drain Current, per Output For -0.5V < V
DC Output Source or Sink Current per
Output Pin
For V
DC VCC or Ground Current ICC ±50 mA
Operating Supply Voltage Range VCC 4.5~5.5 V
Operating DC Input or Output Voltage VIN, V
Operating Temperature T
Storage Temperature T
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.
< -0.5V or V
OUT
> -0.5V or V
OUT
> VCC + 0.5V IOK ±20 mA
OUT
< VCC +0.5V I
OUT
< VCC + 0.5V I
OUT
±25 mA
OUT
±25 mA
OUT
0V~VCC V
OUT
-40 ~ +85
OPR
-65 ~ +150
STG
℃
℃
THERMAL DATA
PARAMETER SYMBOL RATINGS UNIT
Thermal Resistance Junction Ambient
DIP-14 80
SOP-14
θJA
86
℃
/W
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
VCC=4.5V 1.7 1.79 V
VIH
VCC=5.5V 1.94 1.96 V
VCC=4.5V 0.82 0.94 V
Input Switch Points
High Level Output Voltage CMOS Loads VCC=4.5V,VIN=VIH or VIL, I
High Level Output Voltage TTL Loads
Low Level Output Voltage CMOS Loads
Low Level Output Voltage TTL Loads
Input Leakage Current I
Quiescent Device Current ICC
Additional Quiescent Device
SWITCHING SPECIFICATIONS
(Input tR, tF = 6ns)
Propagation Delay, A to Y t
Output Transition Times t
Input Capacitance CIN 10 pF
Power Dissipation Capacitance(Note 2,3) CPD VCC=5V 20 pF
Note: 1. This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather
than 0 V or V
CC
.
2. CPD is used to determine the dynamic power consumption, per inverter.
3. P
= VCC 2 fi (CPD + CL) where fi = input frequency, CL = output load capacitance, VCC = supply voltage.
D
VIL
VCC=5.5V 0.96 1.15 V
VCC=4.5V 0.8 0.86 V
V
TH
VOH
VOL
I(LEAK)
I
△
CC
(Note 1)
, t
PLH
PHL
, t
TLH
THLVCC
=5.5V 0.62 0.83 V
V
CC
=-20µA 4.49 4.495 4.498 V
OUT
VCC=4.5V, VIN=VIH or VIL, I
=4.5V, VIN=VIH or VIL, I
V
CC
VCC=4.5V, VIN=VIH or V
=-4mA 3.99 4.00 4.03 V
OUT
=20µA
OUT
=4mA 0.18 0.185 0.19 V
IL, IOUT
0.41 0.66 1.0 mV
VCC=5.5V, VIN=VCC and GND <0.1 µA
V
=5.5V, VIN=V
CC
I
=0mA
OUT
VCC=4.5V~5.5V, One input at 2.4V
Other inputs at GND or V
or GND,
CC
CC
<1 µA
25 µA
VCC=4.5V, CL=50pF 30 ns
VCC=5V, CL=15pF 2 ns
=4.5V, CL=50pF 12.5 ns
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QW-R502-090,A
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U74HCT14
TEST WAVEFORM
tR=6ns tF=6ns
CMOS IC
t
PHL
90%
50%
10%
t
PLH
t
90 %
50%
10%
TLH
INPUT
t
THL
INVERTING
OUTPUT
Figure 2. 74HCT14 Transition Times And Propagation
Delay Times, Combination Logic
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.
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QW-R502-090,A
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