MC74F139DD [MOTOROLA]
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MOTOROLA 
MC54/74F139
DUAL 1-OF-4 DECODER
The MC54/74F139 is a high speed Dual 1-of-4 Decoder/Demultiplexer.
The device has two independent decoders, each accepting two inputs and
providing four mutually exclusive active LOW outputs. Each decoder has an
active LOW Enable input which can be used as a data input for a 4-output de-
multiplexer. Each half of the F139 can be used as a function generator provid-
ing all four miniterms of two variables.
DUAL 1-OF-4
DECODER
FAST SHOTTKY TTL
• Multifunction Capability
• Two Completely Independent 1-of-4 Decoders
• Active Low Mutually Exclusive Outputs
• Input Clamp Diodes Limit High-Speed Termination Effects
J SUFFIX
CERAMIC
CASE 620-09
CONNECTION DIAGRAM
16
1
V
E
A
A
O
O
O
O
3b
CC
b
0b
1b
0b
1b
2b
16
15
14
13
12
11
10
9
N SUFFIX
PLASTIC
CASE 648-08
16
1
1
E
2
3
4
5
6
7
8
A
A
O
O
O
O
3a
GND
a
0a
1a
0a
1a
2a
D SUFFIX
SOIC
CASE 751B-03
16
1
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN Plastic
MC74FXXXD SOIC
Ceramic
LOGIC DIAGRAM
E
A
A
E
A A
0b 1b
a
0a 1a
b
1
2
3
15
14
13
LOGIC SYMBOL
1
2
3
15
14 13
E
A
A
E
A
A
1
0
1
0
O
O
O
O
7
O
O
O
O
3
0
1
2
3
0
1
2
4
5
6
7
12
11
10
9
4
5
6
12 11 10 9
O
O
O
O
O
O
O
O
3b
0a
1a
2a
3a
0b
1b
2b
V
= Pin 16
CC
GND = Pin 8
V
CC
= PIN 16
GND = PIN 8
= PIN NUMBERS
FAST AND LS TTL DATA
4-56
MC54/74F139
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
4.5
–55
0
Typ
5.0
25
Max
5.5
125
70
Unit
V
V
CC
Supply Voltage
54, 74
54
T
A
Operating Ambient Temperature Range
°C
74
25
I
I
Output Current — High
Output Current — Low
54, 74
54, 74
–1.0
20
mA
mA
OH
OL
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Input HIGH Voltage
Min
Typ
Max
Unit
V
Test Conditions
Guaranteed Input HIGH Voltage
Guaranteed Input LOW Voltage
V
IH
2.0
V
V
V
Input LOW Voltage
0.8
V
IL
Input Clamp Diode Voltage
Output HIGH Voltage
–1.2
V
V = MIN, I = –18 mA
CC IN
IK
54, 74
74
2.5
2.7
V
I
= –1.0 mA
= –1.0 mA
= 20 mA
V
CC
V
CC
V
CC
= 4.50 V
OH
OH
OH
OL
V
I
I
= 4.75 V
= MIN
V
OL
Output LOW Voltage
Input HIGH Current
0.5
20
V
I
µA
mA
mA
mA
mA
V
CC
V
CC
V
CC
V
CC
V
CC
= MAX, V = 2.7 V
IN
IH
0.1
= MAX, V = 7.0 V
IN
I
I
I
Input LOW Current
–0.6
–150
20
= MAX, V = 0.5 V
IN
IL
Output Short Circuit Current (Note 2)
Power Supply Current
-60
= MAX, V = 0 V
OUT
OS
CC
= MAX
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
54/74F
= +25°C
54F
74F
T
A
T
A
= -55°C to +125°C
T = 0°C to 70°C
A
V
= +5.0 V
= 50 pF
V
= 5.0 V ±10%
V
CC
= 5.0 V ±10%
CC
CC
C
C
= 50 pF
C = 50 pF
L
L
L
Symbol
Parameter
Propagation Delay,
Address to Output
Enable to Output
Min
Max
Min
2.5
3.5
3.0
2.5
Max
Min
3.0
3.5
3.5
2.5
Max
Unit
t
t
t
t
3.5
3.5
3.5
2.5
7.0
8.0
7.0
6.5
12.0
9.5
9.0
8.0
8.5
9.0
8.0
7.5
ns
PLH
PHL
PLH
PHL
ns
FUNCTIONAL DESCRIPTION
The F139 is a high speeddual1-of-4decoder/demultiplexer
Each half of the F139 generates all four miniterms of two
variables. These four miniterms are useful in some applica-
tions, replacing multiple gate functions as shown in Figure 1,
and thereby reducing the number of packages required in a
logic network.
fabricated with the Schottky barrier diode process. The device
has two independent decoders, each of which accepts two
binary weighted inputs (A , A ) and provide four mutually ex-
O
1
clusiveactiveLOWoutputs(O -O ). Eachdecoderhasanac-
0
3
tive LOW Enable (E). When E is HIGH all outputs are forced
HIGH. The enable can be used as the data input for a 4-output
demultiplexer application.
FAST AND LS TTL DATA
4-57
MC54/74F139
FUNCTION TABLE
Inputs
Outputs
O
E
H
L
L
L
L
A
A
O
O
O
3
H
H
H
H
L
0
1
0
1
2
X
X
L
L
H
H
H
H
H
L
H
H
H
L
H
L
L
H
H
H
H
H
L
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
E
E
A
0
1
O
A
O
O
O
0
0
0
1
2
A
A
1
E
E
A
0
1
A
O
0
1
1
2
A
A
E
E
A
O
0
1
A
0
1
A
A
E
E
A
0
1
A
O
O
0
1
3
3
A
A
Figure 1.
FAST AND LS TTL DATA
4-58
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