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National Semiconductor Electronic Components Datasheet

74F14 Datasheet

Hex Inverter Schmitt Trigger

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December 1994
54F 74F14
Hex Inverter Schmitt Trigger
General Description
The ’F14 contains six logic inverters which accept standard
TTL input signals and provide standard TTL output levels
They are capable of transforming slowly changing input sig-
nals into sharply defined jitter-free output signals In addi-
tion they have a greater noise margin than conventional
inverters
Each circuit contains a Schmitt trigger followed by a Darling-
ton level shifter and a phase splitter driving a TTL totem-
pole output The Schmitt trigger uses positive feed back to
effectively speed-up slow input transition and provide differ-
ent input threshold voltages for positive and negative-going
transitions This hysteresis between the positive-going and
negative-going input thresholds (typically 800 mV) is deter-
mined internally by resistor ratios and is essentially insensi-
tive to temperature and supply voltage variations
Features
Y Guaranteed 4000V minimum ESD protection
Y Standard Military Drawing
5962-88752
Commercial
74F14PC
74F14SC (Note 1)
74F14SJ (Note 1)
Military
54F14DM (Note 2)
54F14FM (Note 2)
54F14LM (Note 2)
Package
Number
N14A
J14A
M14A
M14D
W14B
E20A
Package Description
14-Lead (0 300 Wide) Molded Dual-In-Line
14-Lead Ceramic Dual-In-Line
14-Lead (0 150 Wide) Molded Small Outline JEDEC
14-Lead (0 300 Wide) Molded Small Outline EIAJ
14-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use Suffix e SCX and SJX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbol
Connection Diagrams
IEEE IEC
Pin Assignment
DIP SOIC and Flatpak
Pin Assignment
for LCC
TL F 9461–3
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9461
TL F 9461 – 1
TL F 9461 – 2
RRD-B30M75 Printed in U S A


National Semiconductor Electronic Components Datasheet

74F14 Datasheet

Hex Inverter Schmitt Trigger

No Preview Available !

Unit Loading Fan Out
Pin Names
Description
In Input
On Output
Function Table
Input
A
L
H
H e HIGH Voltage Level
L e LOW Voltage Level
Output
O
H
L
54F 74F
UL
HIGH LOW
10 10
50 33 3
Input IIH IIL
Output IOH IOL
20 mA b0 6 mA
b1 mA 20 mA
2


Part Number 74F14
Description Hex Inverter Schmitt Trigger
Maker National Semiconductor
Total Page 8 Pages
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