54f138 National Semiconductor Corporation, 54f138 Datasheet

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54f138

Manufacturer Part Number
54f138
Description
1-of-8 Decoder/demultiplexer
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
54F 74F138
1-of-8 Decoder Demultiplexer
General Description
The ’F138 is a high-speed 1-of-8 decoder demultiplexer
This device is ideally suited for high-speed bipolar memory
chip select address decoding The multiple input enables
allow parallel expansion to a 1-of-24 decoder using just
three ’F138 devices or a 1-of-32 decoder using four ’F138
devices and one inverter
Logic Symbols
TRI-STATE is a registered trademark of National Semiconductor Corporation
Note 1 Devices also available in 13 reel Use suffix
Note 2 Military grade device with environmental and burn-in processing Use suffix
74F138PC
74F138SC (Note 1)
74F138SJ (Note 1)
Commercial
IEEE IEC
54F138DM (Note 2)
54F138FM (Note 2)
54F138LM (Note 2)
TL F 9478–3
TL F 9478–6
TL F 9478
Military
e
SCX and SJX
Pin Assignment for DIP
Package
N16E
J16A
M16A
M16D
W16A
E20A
SOIC and Flatpak
Number
Features
Y
Y
Y
Y
Connection Diagrams
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Demultiplexing capability
Multiple input enable for easy expansion
Active LOW mutually exclusive outputs
Guaranteed 4000V minimum ESD protection
e
TL F 9478 – 1
DMQB FMQB and LMQB
Package Description
Pin Assignment
for LCC
RRD-B30M75 Printed in U S A
November 1994
TL F 9478 – 2

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54f138 Summary of contents

Page 1

... Military 74F138PC 54F138DM (Note 2) 74F138SC (Note 1) 74F138SJ (Note 1) 54F138FM (Note 2) 54F138LM (Note 2) Note 1 Devices also available in 13 reel Use suffix Note 2 Military grade device with environmental and burn-in processing Use suffix Logic Symbols TL F 9478–3 IEEE IEC TL F 9478–6 ...

Page 2

Unit Loading Fan Out Pin Names Description A –A Address Inputs Enable Inputs (Active LOW Enable Input (Active HIGH –O Outputs (Active LOW Functional Description The ’F138 high-speed 1-of-8 ...

Page 3

Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays TL F 9478 – ...

Page 4

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias b Plastic b V Pin Potential ...

Page 5

AC Electrical Characteristics T Symbol Parameter V Min t Propagation Delay 3 5 PLH PHL Propagation Delay 3 5 PLH PHL 1 2 ...

Page 6

6 ...

Page 7

Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier (L) NS Package Number E20A 7 ...

Page 8

Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Dual-In-Line Package (D) 16-Lead (0 150 Wide) Molded Small Outline Package JEDEC (S) NS Package Number J16A NS Package Number M16A 8 ...

Page 9

Physical Dimensions inches (millimeters) (Continued) 16-Lead (0 300 Wide) Molded Small Outline Package EIAJ (SJ) 16-Lead (0 300 Wide) Molded Dual-In-Line Package (P) NS Package Number M16D NS Package Number N16E 9 ...

Page 10

Physical Dimensions inches (millimeters) (Continued) 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 ...

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