MC74AC139, MC74ACT139
Dual 1−of−4
Decoder/Demultiplexer
The MC74AC139/74ACT139 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 demultiplexer. Each
half of the MC74AC139/74ACT139 can be used as a function
generator providing four minterms of two variables.
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•
•
•
•
•
w
Multifunctional Capability
Two Completely Independent 1−of−4 Decoders
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
′ACT139
Has TTL Compatible Inputs
These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
V
CC
16
E
b
A
0b
14
A
1b
13
O
0b
12
O
1b
11
O
2b
10
O
3b
9
15
16
1
DIP−16
N SUFFIX
CASE 648
16
1
SO−16
D SUFFIX
CASE 751B
16
1
TSSOP−16
DT SUFFIX
CASE 948F
16
1
E
a
2
A
0a
3
A
1a
4
O
0a
5
O
1a
6
O
2a
7
O
3a
8
GND
1
EIAJ−16
M SUFFIX
CASE 966
ORDERING INFORMATION
Device
MC74AC139N
MC74ACT139N
Package
PDIP−16
PDIP−16
SOIC−16
SOIC−16
SOIC−16
SOIC−16
TSSOP−16
TSSOP−16
EIAJ−16
EIAJ−16
EIAJ−16
EIAJ−16
Shipping
25 Units/Rail
25 Units/Rail
48 Units/Rail
48 Units/Rail
2500 Tape & Reel
2500 Tape & Reel
96 Units/Rail
96 Units/Rail
50 Units/Rail
50 Units/Rail
2000 Tape & Reel
2000 Tape & Reel
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
A
0
, A
1
E
O
0
−O
3
FUNCTION
Address Inputs
Enable Inputs
Outputs
MC74AC139D
MC74ACT139D
MC74AC139DR2
MC74ACT139DR2
MC74AC139DT
MC74ACT139DT
Outputs
MC74AC139DTR2
O
3
H
H
H
H
L
MC74AC139M
MC74ACT139M
MC74AC139MEL
MC74ACT139MEL
TRUTH TABLE
Inputs
E
H
L
L
L
L
A
0
X
L
H
L
H
A
1
X
L
L
H
H
O
0
H
L
H
H
H
O
1
H
H
L
H
H
O
2
H
H
H
L
H
TSSOP−16 2500 Tape & Reel
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
©
Semiconductor Components Industries, LLC, 2006
March, 2006
−
Rev. 7
1
Publication Order Number:
MC74AC139/D
MC74AC139, MC74ACT139
E A
0
A
1
DECODER a
O
0
O
1
O
2
O
3
E
A
0
A
1
DECODER b
O
0
O
1
O
2
O
3
Figure 2. Logic Symbol
E
a
A
0a
A
1a
E
b
A
0b
A
1b
0
0a
NOTE:
0
1a
0
2a
0
3a
0
0b
0
1b
0
2b
0
3b
This diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation
delays.
Figure 3. Logic Diagram
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
FUNCTIONAL DESCRIPTION
The MC74AC139/74ACT139 is a high−speed dual
1−of−4 decoder/demultiplexer. The device has two
independent decoders, each of which accepts two binary
weighted inputs (A
0
−A
1
) and provides four mutually
exclusive active−LOW outputs (O
0
−O
3
). Each decoder has
an active−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. Each half of the
MC74AC139/74ACT139 generates all four minterms of
two variables. These four minterms are useful in some
applications, replacing multiple gate functions as shown in
Figure 4, and thereby reducing the number of packages
required in a logic network.
E
O
0
A
0
A
1
E
A
0
A
1
E
O
2
A
0
A
1
E
O
3
A
0
A
1
O
3
O
2
O
0
O
1
O
1
Figure 4. Gate Functions (Each Half)
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2
MC74AC139, MC74ACT139
MAXIMUM RATINGS*
Symbol
V
CC
V
IN
V
OUT
I
IN
I
OUT
I
CC
T
stg
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Sink/Source Current, per Pin
DC V
CC
or GND Current per Output Pin
Storage Temperature
Value
−0.5
to +7.0
−0.5
to V
CC
+0.5
−0.5
to V
CC
+0.5
±20
±50
±50
−65
to +150
Unit
V
V
V
mA
mA
mA
°C
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom-
mended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
IN
, V
OUT
t
r
, t
f
Supply Voltage
DC Input Voltage, Output Voltage (Ref. to GND)
Input Rise and Fall Time (Note 1)
′AC
Devices except Schmitt Inputs
Input Rise and Fall Time (Note 2)
′ACT
Devices except Schmitt Inputs
Junction Temperature (PDIP)
Operating Ambient Temperature Range
Output Current
−
High
Output Current
−
Low
V
CC
@ 3.0 V
V
CC
@ 4.5 V
V
CC
@ 5.5 V
V
CC
@ 4.5 V
V
CC
@ 5.5 V
Parameter
′AC
′ACT
Min
2.0
4.5
0
−
−
−
−
−
−
−40
−
−
Typ
5.0
5.0
−
150
40
25
10
8.0
−
25
−
−
Max
6.0
5.5
V
CC
−
−
−
−
−
140
85
−24
24
ns/V
°C
°C
mA
mA
ns/V
Unit
V
V
t
r
, t
f
T
J
T
A
I
OH
I
OL
1. V
IN
from 30% to 70% V
CC
; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. V
IN
from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
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3
MC74AC139, MC74ACT139
DC CHARACTERISTICS
74AC
74AC
T
A
=
−40°C
to
+85°C
Unit
V
Conditions
V
OUT
= 0.1 V
or V
CC
−
0.1 V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
I
OUT
=
−50
mA
Symbol
V
IH
Parameter
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
V
CC
(V)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
T
A
= +25°C
Typ
1.5
2.25
2.75
1.5
2.25
2.75
2.99
4.49
5.49
−
−
−
0.002
0.001
0.001
−
−
−
−
−
−
−
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.56
3.86
4.86
0.1
0.1
0.1
0.36
0.36
0.36
±0.1
−
−
8.0
Guaranteed Limits
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.46
3.76
4.76
0.1
0.1
0.1
0.44
0.44
0.44
±1.0
75
−75
80
V
IL
V
V
OH
V
V
*V
IN
= V
IL
or V
IH
−12
mA
I
OH
−24
mA
−24
mA
I
OUT
= 50
mA
V
OL
Maximum Low Level
Output Voltage
3.0
4.5
5.5
3.0
4.5
5.5
V
V
*V
IN
= V
IL
or V
IH
12 mA
I
OL
24 mA
24 mA
V
I
= V
CC
, GND
V
OLD
= 1.65 V Max
V
OHD
= 3.85 V Min
V
IN
= V
CC
or GND
I
IN
I
OLD
I
OHD
I
CC
Maximum Input
Leakage Current
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
5.5
mA
mA
mA
mA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: I
IN
and I
CC
@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V
CC
.
AC CHARACTERISTICS
(For Figures and Waveforms
−
See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74AC
T
A
= +25°C
C
L
= 50 pF
Min
4.0
3.0
3.0
2.5
4.5
3.5
4.0
2.5
Typ
8.0
6.5
7.0
5.5
9.5
7.0
8.0
6.0
Max
11.5
8.5
10
7.5
12
8.5
10
7.5
74AC
T
A
=
−40°C
to +85°C
C
L
= 50 pF
Min
3.5
2.5
2.5
2.0
3.5
3.0
3.0
2.5
Max
13
9.5
11
8.5
13
10
11
8.5
Unit
ns
ns
ns
ns
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay
A
n
to O
n
Propagation Delay
A
n
to O
n
Propagation Delay
E
n
to O
n
Propagation Delay
E
n
to O
n
Parameter
V
CC
*
(V)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Fig.
No.
3−6
3−6
3−6
3−6
*Voltage Range 3.3 V is 3.3 V
±0.3
V.
*Voltage Range 5.0 V is 5.0 V
±0.5
V.
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MC74AC139, MC74ACT139
DC CHARACTERISTICS
74ACT
74ACT
T
A
=
−40°C
to
+85°C
Unit
V
V
V
Conditions
V
OUT
= 0.1 V
or V
CC
−
0.1 V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
I
OUT
=
−50
mA
*V
IN
= V
IL
or V
IH
−24
mA
I
OH
−24
mA
I
OUT
= 50
mA
*V
IN
= V
IL
or V
IH
24 mA
I
OL
24 mA
V
I
= V
CC
, GND
V
I
= V
CC
−
2.1 V
V
OLD
= 1.65 V Max
V
OHD
= 3.85 V Min
V
IN
= V
CC
or GND
Symbol
V
IH
V
IL
V
OH
Parameter
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
V
CC
(V)
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
T
A
= +25°C
Typ
1.5
1.5
1.5
1.5
4.49
5.49
−
−
0.001
0.001
−
−
−
0.6
−
−
−
2.0
2.0
0.8
0.8
4.4
5.4
3.86
4.86
0.1
0.1
0.36
0.36
±0.1
−
−
−
8.0
Guaranteed Limits
2.0
2.0
0.8
0.8
4.4
5.4
3.76
4.76
0.1
0.1
0.44
0.44
±1.0
1.5
75
−75
80
V
V
OL
Maximum Low Level
Output Voltage
4.5
5.5
4.5
5.5
V
V
I
IN
DI
CCT
I
OLD
I
OHD
I
CC
Maximum Input
Leakage Current
Additional Max. I
CC
/Input
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
5.5
5.5
mA
mA
mA
mA
mA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS
(For Figures and Waveforms
−
See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
T
A
= +25°C
C
L
= 50 pF
Min
1.5
1.5
2.5
2.0
Typ
6.0
6.0
7.0
7.0
Max
8.5
9.5
10.0
9.5
74ACT
T
A
=
−40°C
to +85°C
C
L
= 50 pF
Min
1.5
1.5
2.0
1.5
Max
9.5
10.5
11.0
10.5
Unit
ns
ns
ns
ns
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay
A
n
to O
n
Propagation Delay
A
n
to O
n
Propagation Delay
E
n
to O
n
Propagation Delay
E
n
to O
n
Parameter
V
CC
*
(V)
5.0
5.0
5.0
5.0
Fig.
No.
3−6
3−6
3−6
3−6
*Voltage Range 5.0 V is 5.0 V
±0.5
V.
CAPACITANCE
Symbol
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
Parameter
Value
Typ
4.5
40
Unit
pF
pF
Test Conditions
V
CC
= 5.0 V
V
CC
= 5.0 V
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