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MC74ACT139DR2G

P1-P3P4-P6P7-P9
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 8
1 Publication Order Number:
MC74AC139/D
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.
Features
• 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 are Pb−Free Devices
1516 14 13 12 11 10
21 34567
V
CC
9
8
E
b
A
0b
A
1b
E
a
GND
O
0b
O
1b
O
2b
O
3b
A
0a
A
1a
O
0a
O
1a
O
2a
O
3a
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN FUNCTION
A
0
, A
1
Address Inputs
E Enable Inputs
O
0
−O
3
Outputs
TRUTH TABLE
Inputs Outputs
E A
0
A
1
O
0
O
1
O
2
O
3
H X X H H H H
L L L L H H H
L H L H L H H
L L H H H L H
L H H H H H L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
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See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
1
16
1
16
MARKING
DIAGRAMS
xxx = AC or ACT
A = Assembly Location
WL or L = Wafer Lot
Y = Year
WW or W = Work Week
G or G = Pb−Free Package
1
16
xxx139G
AWLYWW
xxx
139
ALYWG
G
1
16
(Note: Microdot may be in either location)
MC74AC139, MC74ACT139
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2
EA
0
A
1
O
0
O
1
O
2
O
3
DECODER a
Figure 2. Logic Symbol
E A
0
A
1
O
0
O
1
O
2
O
3
DECODER b
E
a
A
0a
A
1a
E
b
A
0b
A
1b
0
0a
0
1a
0
2a
0
3a
0
0b
0
1b
0
2b
0
3b
NOTE: This diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation
delays.
Figure 3. Logic Diagram
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
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
E
A
0
A
1
O
0
O
0
O
1
O
1
O
2
O
2
O
3
O
3
Figure 4. Gate Functions (Each Half)
MC74AC139, MC74ACT139
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3
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
DC Supply Voltage *0.5 to )7.0 V
V
I
DC Input Voltage *0.5 v V
I
v V
CC
)0.5 V
V
O
DC Output Voltage (Note 1) *0.5 v V
O
v V
CC
)0.5 V
I
IK
DC Input Diode Current $20 mA
I
OK
DC Output Diode Current $50 mA
I
O
DC Output Sink/Source Current $50 mA
I
CC
DC Supply Current per Output Pin $50 mA
I
GND
DC Ground Current per Output Pin $50 mA
T
STG
Storage Temperature Range *65 to )150 °C
T
L
Lead temperature, 1 mm from Case for 10 Seconds 260 °C
T
J
Junction temperature under Bias )150 °C
q
JA
Thermal Resistance (Note 2) SOIC
TSSOP
69.1
103.8
°C/W
P
D
Power Dissipation in Still Air at 65°C (Note 3) SOIC
TSSOP
500
500
mW
MSL Moisture Sensitivity Level 1
F
R
Flammability Rating Oxygen Index: 30% − 35% UL 94 V−0 @ 0.125 in
V
ESD
ESD Withstand Voltage Human Body Model (Note 4)
Machine Model (Note 5)
Charged Device Model (Note 6)
> 2000
> 200
> 1000
V
I
Latch−Up
Latch−Up Performance Above V
CC
and Below GND at 85°C (Note 7) $100 mA
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. I
O
absolute maximum rating must be observed.
2. The package thermal impedance is calculated in accordance with JESD51−7.
3. 500 mW at 65°C; derate to 300 mW by 10 mW/ from 65°C to 85°C.
4. Tested to EIA/JESD22−A114−A.
5. Tested to EIA/JESD22−A115−A.
6. Tested to JESD22−C101−A.
7. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage
′AC 2.0 5.0 6.0
V
′ACT 4.5 5.0 5.5
V
IN
, V
OUT
DC Input Voltage, Output Voltage (Ref. to GND) 0 − V
CC
V
t
r
, t
f
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
V
CC
@ 3.0 V − 150 −
V
CC
@ 4.5 V − 40 − ns/V
V
CC
@ 5.5 V − 25 −
t
r
, t
f
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
V
CC
@ 4.5 V − 10 −
ns/V
V
CC
@ 5.5 V − 8.0 −
T
J
Junction Temperature (PDIP) − − 140 °C
T
A
Operating Ambient Temperature Range −40 25 85 °C
I
OH
Output Current − High − − −24 mA
I
OL
Output Current − Low − − 24 mA
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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.
P1-P3P4-P6P7-P9

MC74ACT139DR2G

Mfr. #:
Buy MC74ACT139DR2G
Manufacturer:
ON Semiconductor
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 5V Dual 1-of-7 Decoder
Lifecycle:
New from this manufacturer.
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