74F138PC Datasheet PDF - National Semiconductor
Part Number | 74F138PC | |
Description | 1-of-8 Decoder/Demultiplexer | |
Manufacturers | National Semiconductor | |
Logo | ||
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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
Features
Y Demultiplexing capability
Y Multiple input enable for easy expansion
Y Active LOW mutually exclusive outputs
Y Guaranteed 4000V minimum ESD protection
Commercial
74F138PC
74F138SC (Note 1)
74F138SJ (Note 1)
Military
54F138DM (Note 2)
54F138FM (Note 2)
54F138LM (Note 2)
Package
Number
N16E
J16A
M16A
M16D
W16A
E20A
Package Description
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
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 Symbols
Connection Diagrams
Pin Assignment for DIP
SOIC and Flatpak
Pin Assignment
for LCC
TL F 9478–3
IEEE IEC
TL F 9478 – 1
TL F 9478 – 2
TL F 9478–6
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9478
RRD-B30M75 Printed in U S A
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AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Propagation Delay
An to On
Propagation Delay
E1 or E2 to On
Propagation Delay
E3 to On
74F
TA e a25 C
VCC e a5 0V
CL e 50 pF
Min Typ Max
35 56 75
40 61 80
35 54 70
30 53 70
40 62 80
35 56 75
54F
TA VCC e Mil
CL e 50 pF
Min Max
3 0 12 0
40 95
3 0 11 0
30 80
3 5 12 5
35 85
74F
TA VCC e Com
CL e 50 pF
Min Max
35 85
40 90
35 80
30 75
40 90
35 85
Units
Fig
No
ns F–3
ns F–4
ns F–4
FIGURE 1 Expansion to 1-of-32 Decoding
TL F 9478 – 5
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
74F 138 S C X
Temperature Range Family
74FeCommercial
54FeMilitary
Device Type
Package Code
P e Plastic DIP
D e Ceramic DIP
F e Flatpak
L e Leadless Chip Carrier (LCC)
S e Small Outline SOIC JEDEC
SJ e Small Outline SOIC EIAJ
Special Variations
QB e Military grade device with
environmental and burn-in
processing
X e Devices shipped in 13 reel
Temperature Range
CeCommercial (0 C to a70 C)
MeMilitary (b55 C to a125 C)
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 74F138PC electronic component. |
Information | Total 10 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ 74F138PC.PDF Datasheet ] |
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