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tÉlÉcharger 74ls14 pdf

Revised March 2000
DM74LS14
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 hysteresis which increases the noise immunity and transforms a
slowly changing input signal to a fast changing, jitter free
output.
Ordering Code:
Order Number
Package Number
Package Description
DM74LS14M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS14SJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS14N
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
Output
A
Y
L
H
H
L
H = HIGH Logic Level
L = LOW Logic Level
© 2000 Fairchild Semiconductor Corporation
DS006353
www.fairchildsemi.com
DM74LS14 Hex Inverter with Schmitt Trigger Inputs
August 1986
DM74LS14
Absolute Maximum Ratings(Note 1)
Supply Voltage
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.
7V
Input Voltage
7V
0°C to +70°C
Operating Free Air Temperature Range
−65°C to +150°C
Storage Temperature Range
Recommended Operating Conditions
Min
Nom
Max
VCC
Symbol
Supply Voltage
Parameter
4.75
5
5.25
Units
V
VT+
Positive-Going Input Threshold Voltage (Note 2)
1.4
1.6
1.9
V
VT−
Negative-Going Input Threshold Voltage (Note 2)
0.5
0.8
1
V
HYS
Input Hysteresis (Note 2)
0.4
0.8
IOH
HIGH Level Output Current
−0.4
mA
IOL
LOW Level Output Current
8
mA
TA
Free Air Operating Temperature
70
°C
V
0
Note 2: VCC = 5V.