54F139FM [NSC]
Dual 1-of-4 Decoder/Demultiplexer; 1 -的-4双解码器/多路解复用器
| 型号： | 54F139FM |
| 厂家： | 
National Semiconductor |
| 描述： | Dual 1-of-4 Decoder/Demultiplexer |
| 文件： | 总8页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
November 1994
54F/74F139
Dual 1-of-4 Decoder/Demultiplexer
General Description
Features
Y
Multifunction capability
The ’F139 is a high-speed, dual 1-of-4 decoder/demultiplex-
er. The device has two independent decoders, each accept-
ing two inputs and providing four mutually exclusive active
LOW outputs. Each decoder has an active LOW Enable in-
put which can be used as a data input for a 4-output demul-
tiplexer. Each half of the ’F139 can be used as a function
generator providing all four minterms of two variables.
Y
Two completely independent 1-of-4 decoders
Active LOW mutually exclusive outputs
Y
Y
Guaranteed 4000V minimum ESD protection
Package
Commercial
74F139PC
Military
Package Description
Number
N16E
J16A
16-Lead (0.300 Wide) Molded Dual-In-Line
×
54F139DM (Note 2)
16-Lead Ceramic Dual-In-Line
74F139SC (Note 1)
74F139SJ (Note 1)
M16A
M16D
W16A
E20A
16-Lead (0.150 Wide) Molded Small Outline, JEDEC
×
16-Lead (0.300 Wide) Molded Small Outline, EIAJ
×
54F139FM (Note 2)
54F139LM (Note 2)
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier, Type C
e
Note 1: Devices also available in 13 reel. Use suffix
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
DIP, SOIC and Flatpak
TL/F/9479–3
TL/F/9479–4
IEEE/IEC
TL/F/9479–1
Pin Assignment
for LCC
TL/F/9479–7
TL/F/9479–2
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
TL/F/9479
RRD-B30M75/Printed in U. S. A.
Unit Loading/Fan Out
54F/74F
Pin Names
Description
U.L.
Input I /I
IH IL
Output I /I
HIGH/LOW
OH OL
b
20 mA/ 0.6 mA
b
20 mA/ 0.6 mA
A , A
0
Address Inputs
1.0/1.0
1.0/1.0
50/33.3
1
E
Enable Inputs (Active LOW)
Outputs (Active LOW)
b
O –O
0
1 mA/20 mA
3
Functional Description
The ’F139 is a high-speed dual 1-of-4 decoder/demultiplex-
as the data input for a 4-output demultiplexer application.
Each half of the ’F139 generates all four minterms of two
variables. These four minterms are useful in some applica-
tions, replacing multiple gate functions as shown inFigure 1,
and thereby reducing the number of packages required in a
logic network.
er. The device has two independent decoders, each of
which accepts two binary weighted inputs (A –A ) and pro-
0
1
vides four mutually exclusive active LOW Outputs (O –O ).
0
3
Each decoder has an active LOW enable (E). When E is
HIGH all outputs are forced HIGH. The enable can be used
Truth Table
Inputs
Outputs
E
A
0
A
1
O
O
O
O
3
0
1
2
H
L
L
L
L
X
X
H
H
H
H
L
H
L
L
L
L
H
H
H
H
L
H
H
L
H
H
H
L
H
H
H
H
H
H
e
e
e
H
L
HIGH Voltage Level
LOW Voltage Level
Immaterial
X
TL/F/9479–6
FIGURE 1. Gate Functions (each half)
Logic Diagram
TL/F/9479–5
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Commercial
b
a
55 C to 125 C
§
0 C to 70 C
§
§
b
b
a
65 C to 150 C
Storage Temperature
§
§
§
§
§
a
§
a
55 C to 125 C
Ambient Temperature under Bias
§
Supply Voltage
Military
Commercial
b
b
a
a a
4.5V to 5.5V
a a
4.5V to 5.5V
Junction Temperature under Bias
Plastic
55 C to 175 C
§
§
a
55 C to 150 C
V
Pin Potential to
CC
Ground Pin
b
a
0.5V to 7.0V
b
a
0.5V to 7.0V
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
b
a
30 mA to 5.0 mA
e
in HIGH State (with V
Standard Output
0V)
CC
b
0.5V to 5.5V
0.5V to V
CC
b
a
TRI-STATE Output
É
Current Applied to Output
in LOW State (Max)
twice the rated I (mA)
OL
ESD Last Passing Voltage (Min)
4000V
Note 1: Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired. Functional operation under
these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
54F/74F
Symbol
Parameter
Units
V
CC
Conditions
Min
Typ
Max
V
V
V
V
Input HIGH Voltage
2.0
V
V
V
Recognized as a HIGH Signal
Recognized as a LOW Signal
IH
Input LOW Voltage
0.8
IL
b
e b
18 mA
Input Clamp Diode Voltage
1.2
Min
Min
I
IN
CD
OH
e b
e b
e b
Output HIGH
Voltage
54F 10% V
2.5
2.5
2.7
I
I
I
1 mA
1 mA
1 mA
CC
OH
OH
OH
74F 10% V
74F 5% V
V
CC
CC
e
e
V
Output LOW
Voltage
54F 10% V
74F 10% V
0.5
I
I
20 mA
20 mA
OL
CC
OL
V
Min
Max
Max
Max
0.0
0.5
CC
OL
e
I
I
I
Input HIGH
Current
54F
74F
20.0
5.0
V
V
V
2.7V
IH
IN
mA
mA
mA
V
e
Input HIGH Current
Breakdown Test
54F
74F
100
7.0
7.0V
BVI
IN
e
V
CC
Output HIGH
54F
74F
250
50
CEX
OUT
Leakage Current
e
All Other Pins Grounded
V
ID
Input Leakage
Test
I
ID
1.9 mA
74F
74F
4.75
e
IOD
I
Output Leakage
Circuit Current
V
150 mV
OD
3.75
mA
0.0
All Other Pins Grounded
b
e
I
I
I
Input LOW Current
0.6
mA
mA
mA
Max
Max
Max
V
V
0.5V
IL
IN
b
b
e
0V
Output Short-Circuit Current
Power Supply Current
60
150
OS
CC
OUT
13
20
3
AC Electrical Characteristics
74F
54F
74F
e a
T
A
25 C
§
5.0V
e
50 pF
e
T
, V
CC
e
Mil
T
, V
Com
e
50 pF
A
A CC
e a
Symbol
Parameter
V
Units
CC
C
C
L
L
e
C
50 pF
L
Min
Typ
Max
Min
Max
Min
Max
t
t
Propagation Delay
3.5
4.0
5.3
6.1
7.5
8.0
2.5
3.5
12.0
9.5
3.0
4.0
8.5
9.0
PLH
ns
ns
A
or A to O
1 n
PHL
0
t
t
Propagation Delay
to O
3.5
3.0
5.4
4.7
7.0
6.5
3.0
2.5
9.0
8.0
3.5
3.0
8.0
7.5
PLH
E
1
PHL
n
Ordering Information
74F 139
S
C
X
Temperature Range Family
Special Variations
e
e
e
74F
54F
Commercial
Military
QB
Military grade device with
environmental and burn-in
processing
Device Type
e
X
Devices shipped in 13 reel
×
Package Code
Temperature Range
e
e
e
e
e
e
P
D
F
L
S
SJ
Plastic DIP
Ceramic DIP
Flatpak
Leadless Chip Carrier (LCC)
Small Outline SOIC JEDEC
Small Outline SOIC EIAJ
e
e
a
C
M
Commercial (0 C to 70 C)
§
§
b a
Military ( 55 C to 125 C)
§
§
4
Physical Dimensions inches (millimeters)
20-Lead Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
16-Lead Ceramic Dual In-Line Package (D)
NS Package Number J16A
5
Physical Dimensions inches (millimeters) (Continued)
16-Lead (0.150 Wide) Molded Small Outline Integrated Circuit (S)
×
NS Package Number M16A
6
Physical Dimensions inches (millimeters) (Continued)
16-Lead (0.300 Wide) Molded Small Outline Package, EIAJ (SJ)
×
NS Package Number M16D
16-Lead (0.300 Wide) Molded Dual In-Line Package (P)
×
NS Package Number N16E
7
Physical Dimensions inches (millimeters) (Continued)
16-Lead Ceramic Flatpak (F)
NS Package Number W16A
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