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74LS14 PDF даташит

Спецификация 74LS14 изготовлена ​​​​«National Semiconductor» и имеет функцию, называемую «Hex Inverters with Schmitt Trigger Inputs».

Детали детали

Номер произв 74LS14
Описание Hex Inverters with Schmitt Trigger Inputs
Производители National Semiconductor
логотип National Semiconductor логотип 

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74LS14 Даташит, Описание, Даташиты
54LS14 DM74LS14 Hex Inverters
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
Connection Diagram
Dual-In-Line Package
June 1989
Function Table
Order Number 54LS14DMQB 54LS14FMQB
54LS14LMQB DM74LS14M or DM74LS14N
See NS Package Number E20A J14A M14A N14A or W14B
TL F 6353 – 1
YeA
Input
Output
AY
LH
HL
H e High Logic Level
L e Low Logic Level
C1995 National Semiconductor Corporation TL F 6353
RRD-B30M105 Printed in U S A









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74LS14 Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
54LS
b55 C to a125 C
DM74LS
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Note The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ‘‘Electrical Characteristics’’
table 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
VTa
VTb
HYS
IOH
IOL
TA
Parameter
Supply Voltage
Positive-Going Input
Threshold Voltage (Note 1)
Negative-Going Input
Threshold Voltage (Note 1)
Input Hysteresis (Note 1)
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
54LS14
Min Nom Max
45 5 55
15 16 20
06 08 11
04 08
b0 4
4
b55
125
DM74LS14
Min Nom Max
4 75 5
5 25
14 16
19
05 08
1
04 08
b0 4
8
0 70
Units
V
V
V
V
mA
mA
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI Input Clamp Voltage
VOH
High Level Output
Voltage
VCC e Min II e b18 mA
VCC e Min IOH e Max
VIL e Max
54LS
DM74
25
27
VOL Low Level Output
Voltage
VCC e Min IOL e Max
VIH e Min
54LS
DM74
VCC e Min IOL e 4 mA
DM74
ITa Input Current at
VCC e 5V VI e VTa
DM74
Positive-Going Threshold
ITb Input Current at
VCC e 5V VI e VTb
DM74
Negative-Going Threshold
II
Input Current Max
VCC e Max VI e 7V
DM74
Input Voltage
VCC e Max VI e 10 0V
54LS
IIH
High Level Input Current
VCC e Max VI e 2 7V
IIL
Low Level Input Current
VCC e Max VI e 0 4V
IOS Short Circuit
Output Current
VCC e Max
(Note 3)
54LS
DM74
b20
b20
ICCH
Supply Current with
Outputs High
VCC e Max
ICCL
Supply Current with
Outputs Low
VCC e Max
Note 1 VCC e 5V
Note 2 All typicals are at VCC e 5V TA e 25 C
Note 3 Not more than one output should be shorted at a time and the duration should not exceed one second
Typ
(Note 2)
34
34
0 25
0 35
0 25
b0 14
b0 18
86
12
Max
b1 5
04
05
04
01
20
b0 4
b100
b100
16
21
Units
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
2









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74LS14 Даташит, Описание, Даташиты
Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
RL e 2 kX
CL e 15 pF
CL e 50 pF
Min Max Min Max
Units
tPLH
Propagation Delay Time
Low to High Level Output
5
22
8
25 ns
tPHL
Propagation Delay Time
High to Low Level Output
5
22 10 33 ns
3










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