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Fairchild Semiconductor |
March 1986
Revised February 2000
DM74ALS14
Hex Inverter with Schmitt Trigger Inputs
General Description
This device contains six independent gates, each of which
performs the logic INVERT function. Each input has hyster-
esis which increases the noise immunity and transforms a
slowly changing input signal to a fast changing, jitter-free
output.
Features
s Input hysteresis
s Low output noise generation
s High input noise immunity
s Switching specification at 50 pF
s Switching specifications guaranteed over full tempera-
ture and VCC range
s Advanced oxide-isolated, ion-implanted Schottky TTL
process
s Functionally and pin-for-pin compatible with Schottky
and low power Schottky TTL counterparts
s Improved AC performance over low power Schottky
counterpart
Ordering Code:
Order Number Package Number
Package Description
DM74ALS14M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS14SJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74ALS14N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y=A
Input
A
L
H
H = HIGH Logic Level
L = LOW Logic Level
Output
Y
H
L
© 2000 Fairchild Semiconductor Corporation DS008773
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Absolute Maximum Ratings(Note 1)
Supply Voltage
Input Voltage
Storage Temperature Range
Operating Free Air Temperature Range
Typical θJA
N Package
M Package
7V
7V
−65°C to +150°C
0°C to +70°C
78.5°C/W
109.0°C/W
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
VCC
VT+
VT−
HYS
IOH
IOL
TA
Parameter
Supply Voltage
Positive-Going Input
Threshold Voltage
Negative-Going Input
Threshold Voltage
Input Hysteresis
HIGH Level Output Current
VCC = Min to Max
VCC = 5V
VCC = Min to Max
VCC = 5V
VCC = Min to Max
VCC = 5V
LOW Level Output Current
Operating Free Air Temperature Range
Min
4.5
1.4
1.55
0.75
0.85
0.5
0.6
0
Nom
5
Max
5.5
2
1.85
1.2
1.1
−0.4
8
70
Units
V
V
V
V
mA
mA
°C
Electrical Characteristics
over recommended free air temperature range (unless otherwise noted)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
VIK
VOH
VOL
IT+
IT−
II
IIH
IIL
IO
ICCH
ICCL
VOLP
VOLV
VIHD
Input Clamp Voltage
VCC = Min, II = −18 mA
HIGH Level Output Voltage
VCC = 4.5V to 5.5V, IOH = Max
LOW Level Output Voltage
VCC = Min
IOL = 4 mA
IOL = 8 mA
Input Current at Positive-Going Threshold Voltage VCC = 5V, VI = VT+
Input Current at Negative-Going Threshold Voltage VCC = 5V, VI = VT−
Input Current at Maximum Input Voltage
VCC = Max, VI = 7V
HIGH Level Input Current
VCC = Max, VI = 2.7V
LOW Level Input Current
VCC = Max, VI = 0.4V
Output Drive Current
VCC = Max, VO = 2.25V
Supply Current with Outputs HIGH
VCC = Max
Supply Current with Outputs LOW
VCC = Max
Quiet Output Maximum
VCC = 5.0V, TA = 25°C
Dynamic VOL
(Figures 1, 2); (Note 2)(Note 3)
Quiet Output Minimum
VCC = 5.0V, TA = 25°C
Dynamic VOL
(Figures 1, 2); (Note 2)(Note 3)
Minimum HIGH Level
VCC = 5.0V, TA = 25°C
Dynamic Input Voltage
(Note 2)(Note 4)
VCC − 2
0.25
0.35
−30
0.16
−0.27
1.44
−1.5
0.4
0.5
20
−100
100
20
−100
−112
12
12
V
V
V
V
µA
µA
µA
µA
µA
mA
mA
mA
V
V
V
VILD Maximum LOW Level
Dynamic Input Voltage
VCC = 5.0V, TA = 25°C
(Note 2)(Note 4)
1.15
V
Note 2: Plastic DIP package.
Note 3: n = number of device outputs, n − 1 outputs switching, each driven 0V to 3V one output @ GND.
Note 4: n = number of device outputs, n outputs switching, n − 1 inputs switching 0V to 3V. Input under test switching 3V to threshold (VILD); 0V to threshold
(VIHD); f = 1 MHz.
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