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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
Function Table
C 1995 National Semiconductor Corporation
Dual-In-Line Package
Order Number 54LS14DMQB 54LS14FMQB
54LS14LMQB DM74LS14M or DM74LS14N
See NS Package Number E20A J14A M14A N14A or W14B
Y
e
Input
A
L
H
H
High Logic Level
e
L
Low Logic Level
e
TL F 6353
A
Output
Y
H
L
June 1989
TL F 6353– 1
RRD-B30M105 Printed in U S A
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Summary of Contents for National Semiconductor Inverter
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Page 1: General Description
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 Order Number 54LS14DMQB 54LS14FMQB... -
Page 2: Absolute Maximum Ratings
Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Operating Free Air Temperature Range 54LS DM74LS Storage Temperature Range Recommended Operating Conditions Symbol Parameter Supply Voltage Positive-Going Input... -
Page 3: Switching Characteristics
Switching Characteristics Symbol Parameter Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output at V 5V and T 25 C (See Section 1 for Test Waveforms and Output Load) 15 pF 50 pF Units... -
Page 4: Physical Dimensions
Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier (E) Order Number 54LS14LMQB NS Package Number E20A 14-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS14DMQB NS Package Number J14A... - Page 5 Physical Dimensions inches (millimeters) (Continued) 14-Lead Small Outline Molded Package (M) Order Number DM74LS14M NS Package Number M14A 14-Lead Molded Dual-In-Line Package (N) Order Number DM74LS14N NS Package Number N14A...
- Page 6 Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Flat Package (W) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose...