74VHC139
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
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DESCRIPTION
The 74VHC139 is an advanced high-speed
CMOS DUAL 2 TO 4 LINE DECODER/
DEMULTIPLEXER fabricated with sub-micron
silicon gate and double-layer metal wiring C
2
MOS
technology.
The active low enable input can be used for gating
or as a data input for demultiplexing applications.
While the enable input is held high, all four outputs
are high independently of the other inputs.
Figure 1: Pin Connection And IEC Logic Symbols
O
s)
t(
uc
d
)
ro
(s
P
ct
te
du
le
o
so
Pr
b
e
O
et
) -
ol
(s
bs
ct
O
u
-
od
s)
r
(
P
ct
te
du
le
o
so
Pr
b
e
O
t
le
so
b
SOP
TSSOP
HIGH SPEED: t
PD
= 5.0 ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 4
µA
(MAX.) at T
A
=25°C
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% V
CC
(MIN.)
POWER DOWN PROTECTION ON INPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 8 mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
≅
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 139
IMPROVED LATCH-UP IMMUNITY
Table 1: Order Codes
PACKAGE
SOP
TSSOP
T&R
74VHC139MTR
74VHC139TTR
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
November 2004
Rev. 4
1/12
74VHC139
Table 4: Absolute Maximum Ratings
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
T
stg
T
L
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
Storage Temperature
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
- 20
±
20
±
25
±
75
-65 to +150
300
Unit
V
V
V
mA
mA
mA
mA
°C
°C
I
CC
or I
GND
DC V
CC
or Ground Current
Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
Table 5: Recommended Operating Conditions
Symbol
V
CC
V
I
V
O
Parameter
1) V
IN
from 30% to 70% of V
CC
O
s)
t(
uc
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)
ro
(s
P
ct
te
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o
so
Pr
b
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et
) -
ol
(s
bs
ct
O
u
-
od
s)
r
(
P
ct
te
du
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Pr
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Value
Unit
V
V
Supply Voltage
Input Voltage
Output Voltage
2 to 5.5
0 to 5.5
0 to V
CC
0 to 100
0 to 20
V
T
op
Operating Temperature
-55 to 125
°C
dt/dv
Input Rise and Fall Time (note 1) (V
CC
= 3.3
±
0.3V)
(V
CC
= 5.0
±
0.5V)
ns/V
3/12
74VHC139
Table 6: DC Specifications
Test Condition
Symbol
Parameter
V
CC
(V)
2.0
3.0 to
5.5
2.0
3.0 to
5.5
2.0
3.0
T
A
= 25°C
Min.
1.5
0.7V
CC
0.5
0.3V
CC
I
O
=-50
µA
1.9
2.9
4.4
2.0
3.0
4.5
1.9
2.9
4.4
I
O
=-50
µA
I
O
=-50
µA
I
O
=-4 mA
I
O
=-8 mA
I
O
=50
µA
I
O
=50
µA
I
O
=50
µA
I
O
=4 mA
I
O
=8 mA
Typ.
Max.
Value
-40 to 85°C
Min.
1.5
0.7V
CC
0.5
0.3V
CC
1.9
2.9
4.4
Max.
-55 to 125°C
Min.
1.5
0.7V
CC
0.5
0.3V
CC
V
V
Max.
Unit
V
IH
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
V
IL
Table 7: AC Electrical Characteristics
(Input t
r
= t
f
= 3ns)
Test Condition
C
L
(pF)
15
50
15
50
15
50
15
50
O
s)
t(
uc
d
)
ro
(s
P
ct
te
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Pr
b
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et
) -
ol
(s
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ct
O
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od
s)
r
(
P
ct
te
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Pr
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V
OH
4.5
3.0
4.5
V
2.58
2.48
3.8
2.4
3.94
3.7
V
OL
Low Level Output
Voltage
2.0
0.0
0.0
0.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
4.5
3.0
V
0.36
0.36
0.44
0.44
±
1
40
0.55
0.55
±
1
40
4.5
I
I
I
CC
Input Leakage
Current
Quiescent Supply
Current
0 to
5.5
5.5
V
I
= 5.5V or GND
V
I
= V
CC
or GND
±
0.1
4
µA
µA
Value
Symbol
Parameter
V
CC
(V)
T
A
= 25°C
Typ.
7.2
9.7
5.0
6.5
6.4
8.9
4.4
5.9
-40 to 85°C
-55 to 125°C
Min.
1.0
Max.
13.0
8.5
Unit
Min.
Max.
11.0
7.2
9.2
9.2
Min.
1.0
Max.
13.0
8.5
t
PLH
t
PHL
Propagation Delay
Time
A, B to Y
3.3
(*)
3.3
(*)
14.5
1.0
16.5
1.0
16.5
5.0
(**)
5.0
(**)
3.3
(*)
3.3
(*)
1.0
1.0
1.0
1.0
ns
10.5
11.0
1.0
10.5
11.0
t
PLH
t
PHL
Propagation Delay
Time
G to Y
1.0
12.7
6.3
8.3
1.0
14.5
7.5
9.5
1.0
14.5
7.5
9.5
5.0
(**)
5.0
(**)
1.0
1.0
1.0
1.0
ns
(*) Voltage range is 3.3V
±
0.3V
(**) Voltage range is 5.0V
±
0.5V
4/12
74VHC139
Table 8: Capacitive Characteristics
Test Condition
Symbol
Parameter
T
A
= 25°C
Min.
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance
(note 1)
Typ.
4
26
Max.
10
Value
-40 to 85°C
Min.
Max.
10
-55 to 125°C
Min.
Max.
10
pF
pF
Unit
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/2 (per
Decoder)
Figure 4: Test Circuit
C
L
=15/50pF or equivalent (includes jig and probe capacitance)
R
T
= Z
OUT
of pulse generator (typically 50Ω)
Figure 5: Waveform - Propagation Delays For Inverting Outputs
(f=1MHz; 50% duty cycle)
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(
P
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5/12
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