HD74AC139/HD74ACT139
Dual 1-of-4 Decoder/Demultiplexer
REJ03D0249–0200Z
(Previous ADE-205-369 (Z))
Rev.2.00
Jul.16.2004
Description
The HD74AC139/HD74ACT139 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
HD74AC139/HD74ACT139 can be used as a function generator providing all four minterms of two variables.
Features
•
Multifunction Capability
•
Two Completely Independent 1-of-4 Decoders
•
Active Low Mutually Exclusive Outputs
•
Outputs Source/Sink 24 mA
•
HD74ACT139 has TTL-Compatible Inputs
•
Ordering Information: Ex. HD74AC139
Part Name
HD74AC139AP
Package Type
DIP-16 pin
Package Code Package Abbreviation Taping Abbreviation (Quantity)
DP-16E, -16FV
FP-16DAV
TTP-16DAV
P
FP
RP
T
—
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
ELL(2,000 pcs/reel)
HD74AC139AFPEL SOP-16 pin (JEITA)
HD74AC139TELL
TSSOP-16 pin
HD74AC139ARPEL SOP-16 pin (JEDEC) FP-16DNV
Notes: 1. Please consult the sales office for the above package availability.
2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of
the package code.
Pin Arrangement
E
a
1
A
0a
2
A
1a
3
O
0a
4
O
1a
5
O
2a
6
O
3a
7
GND 8
(Top view)
16 V
CC
15
E
b
14 A
0b
13 A
1b
12
O
0b
11
O
1b
10
O
2b
9
O
3b
Rev.2.00, Jul.16.2004, page 1 of 9
HD74AC139/HD74ACT139
Logic Symbol
E
A
0
A
1
E
A
0
A
1
DECODER a
O
0
O
1
O
2
O
3
DECODER b
O
0
O
1
O
2
O
3
Pin Names
A
0
, A
1
E
O
0
to
O
3
Address Inputs
Enable Inputs
Outputs
Logic Diagram
E
a
A
0a
A
1a
E
b
A
0b
A
1b
O
0a
O
1a
O
2a
O
3a
O
0b
O
1b
O
2b
O
3b
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
Functional Description
The HD74AC139/HD74ACT139 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
to A
1
) and provides four mutually exclusive active-
Low outputs (O
0
to
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
HD74AC139/HD74ACT139 generates all four minterms of two variables. These four minterms are useful in some
applications, replacing multiple gate functions as shown in Figure a, and thereby reducing the number of packages
required in a logic network.
Rev.2.00, Jul.16.2004, page 2 of 9
HD74AC139/HD74ACT139
Truth Table
Inputs
E
H
L
L
L
L
H :
L :
X :
X
L
H
L
H
High Voltage Level
Low Voltage Level
Immaterial
A
0
X
L
L
H
H
A
1
H
L
H
H
H
Outputs
O
0
H
H
L
H
H
O
1
H
H
H
L
H
O
2
H
H
H
H
L
O
3
Figure a: Gate Functions
(each half)
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
O
3
O
2
O
1
O
0
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
O
3
O
2
O
1
O
0
Absolute Maximum Ratings
Item
Supply voltage
DC input diode current
DC input voltage
DC output diode current
DC output voltage
DC output source or sink current
DC V
CC
or ground current per output pin
Storage temperature
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
, I
GND
Tstg
Ratings
–0.5 to 7
–20
20
–0.5 to Vcc+0.5
–50
50
–0.5 to Vcc+0.5
±50
±50
–65 to +150
Unit
V
mA
mA
V
mA
mA
V
mA
mA
°C
V
I
= –0.5V
V
I
= Vcc+0.5V
V
O
= –0.5V
V
O
= Vcc+0.5V
Condition
Rev.2.00, Jul.16.2004, page 3 of 9
HD74AC139/HD74ACT139
Recommended Operating Conditions: HD74AC139
Item
Supply voltage
Input and output voltage
Operating temperature
Input rise and fall time
(except Schmitt inputs)
V
IN
30% to 70% V
CC
Symbol
V
CC
V
I
, V
O
Ta
tr, tf
Ratings
2 to 6
0 to V
CC
–40 to +85
8
V
V
°C
ns/V
V
CC
= 3.0V
V
CC
= 4.5 V
V
CC
= 5.5 V
Unit
Condition
DC Characteristics: HD74AC139
Item
Sym-
bol
V
IH
Vcc
(V)
3.0
4.5
5.5
V
IL
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
V
OL
5.5
3.0
4.5
5.5
3.0
4.5
Input leakage
current
Dynamic output
current*
Quiescent supply
current
I
IN
I
OLD
I
OHD
I
CC
5.5
5.5
5.5
5.5
5.5
min.
2.1
3.15
3.85
—
—
—
2.9
4.4
5.4
2.58
3.94
4.94
—
—
—
—
—
—
—
—
—
—
Ta = 25°C
°
typ.
1.5
2.25
2.75
1.50
2.25
2.75
2.99
4.49
5.49
—
—
—
0.002
0.001
0.001
—
—
—
—
—
—
—
max.
—
—
—
0.9
1.35
1.65
—
—
—
—
—
—
0.1
0.1
0.1
0.32
0.32
0.32
±0.1
—
—
8.0
Ta = –40 to
+85°C
°
min.
2.1
3.15
3.85
—
—
—
2.9
4.4
5.4
2.48
3.80
4.80
—
—
—
—
—
—
—
86
–75
—
max.
—
—
—
0.9
1.35
1.65
—
—
—
—
—
—
0.1
0.1
0.1
0.37
0.37
0.37
±1.0
—
—
80
µA
mA
mA
µA
V
V
OUT
= 0.1 V or V
CC
–0.1 V
Unit
Condition
Input Voltage
V
V
OUT
= 0.1 V or V
CC
–0.1 V
Output voltage
V
OH
V
IN
= V
IL
or V
IH
I
OUT
= –50
µA
V
IN
= V
IL
or V
IH
I
OH
= –12 mA
I
OH
= –24 mA
I
OH
= –24 mA
V
IN
= V
IL
or V
IH
I
OUT
= 50
µA
V
IN
= V
IL
or V
IH
I
OL
= 12 mA
I
OL
= 24 mA
I
OL
= 24 mA
V
IN
= V
CC
or GND
V
OLD
= 1.1 V
V
OHD
= 3.85 V
V
IN
= V
CC
or ground
*Maximum
test duration 2.0 ms, one output loaded at a time.
Recommended Operating Conditions: HD74ACT139
Item
Supply voltage
Input and output voltage
Operating temperature
Input rise and fall time
(except Schmitt inputs)
V
IN
0.8 to 2.0 V
Symbol
V
CC
V
I
, V
O
Ta
tr, tf
2 to 6
0 to V
CC
–40 to +85
8
Ratings
V
V
°C
ns/V
V
CC
= 4.5V
V
CC
= 5.5V
Unit
Condition
Rev.2.00, Jul.16.2004, page 4 of 9
HD74AC139/HD74ACT139
DC Characteristics: HD74ACT139
Item
Sym-
bol
V
IH
V
IL
Output voltage
V
OH
V
CC
(V)
4.5
5.5
4.5
5.5
4.5
5.5
4.5
V
OL
5.5
4.5
5.5
4.5
Input current
I
CC
/input current
Dynamic output
current*
Quiescent supply
current
I
IN
I
CCT
I
OLD
I
OHD
I
CC
5.5
5.5
5.5
5.5
5.5
5.5
min.
2.0
2.0
—
—
4.4
5.4
3.94
4.94
—
—
—
—
—
—
—
—
—
Ta = 25°C
°
typ.
1.5
1.5
1.5
1.5
4.49
5.49
—
—
0.001
0.001
—
—
—
0.6
—
—
—
max.
—
—
0.8
0.8
—
—
—
—
0.1
0.1
0.32
0.32
±0.1
—
—
—
8.0
Ta = –40 to
+85°C
°
min.
2.0
2.0
—
—
4.4
5.4
3.80
4.80
—
—
—
—
—
—
86
–75
—
max.
—
—
0.8
0.8
—
—
—
—
0.1
0.1
0.37
0.37
±1.0
1.5
—
—
80
µA
mA
mA
mA
µA
V
Unit
Condition
Input voltage
V
V
OUT
= 0.1 V or Vcc–0.1 V
V
OUT
= 0.1 V or Vcc–0.1 V
V
IN
= V
IL
or V
IH
I
OUT
= –50
µA
V
IN
= V
IL
V
IN
= V
IL
or V
IH
I
OUT
= 50
µA
V
IN
= V
IL
V
IN
= V
CC
or GND
V
IN
= V
CC
–2.1 V
V
OLD
= 1.1 V
V
OHD
= 3.85 V
V
IN
= V
CC
or ground
I
OL
= 24 mA
I
OL
= 24 mA
I
OH
= –24 mA
I
OH
= –24 mA
*Maximum
test duration 2.0 ms, one output loaded at a time.
AC Characteristics: HD74AC139
Ta = +25°C
C
L
= 50 pF
Item
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
Note:
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
V
CC
(V)*
1
Min
3.3
1.0
5.0
3.3
5.0
3.3
5.0
3.3
5.0
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Typ
8.0
6.5
7.0
5.5
9.5
7.0
8.0
6.0
Max
11.5
8.5
10.0
7.5
12.0
8.5
10.0
7.5
Ta = –40°C to +85°C
C
L
= 50 pF
Min
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max
13.0
9.5
11.0
8.5
13.0
10.0
11.0
8.5
Unit
ns
ns
ns
ns
AC Characteristics: HD74ACT139
Ta = +25°C
C
L
= 50 pF
Item
Symbol V
CC
(V)*
1
Propagation delay
t
PLH
5.0
A
n
to
O
n
Propagation delay
t
PHL
5.0
A
n
to
O
n
Propagation delay
t
PLH
5.0
E
n
to
O
n
Propagation delay
t
PHL
5.0
E
n
to
O
n
Note: 1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Min
1.0
1.0
1.0
1.0
Typ
6.0
6.0
7.0
7.0
Max
8.5
9.5
10.0
9.5
Ta = –40°C to +85°C
C
L
= 50 pF
Min
1.0
1.0
1.0
1.0
9.5
10.5
11.0
10.5
Max
ns
ns
ns
ns
Unit
Rev.2.00, Jul.16.2004, page 5 of 9
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