MC74LVX138
3-to-8 Line Decoder
With 5V−Tolerant Inputs
The MC74LVX138 is an advanced high speed CMOS 3−to−8 line
decoder. The inputs tolerate voltages up to 7.0 V, allowing the
interface of 5.0 V systems to 3.0 V systems.
When the device is enabled, three Binary Select inputs (A0 − A2)
determine which one of the outputs (O0 − O7) will go Low. When
enable input E3 is held Low or either E2 or E1 is held High, decoding
function is inhibited and all outputs go high. E3, E2, and E1 inputs are
provided to ease cascade connection and for use as an address decoder
for memory systems.
Features
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SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
•
•
•
•
•
•
•
•
PIN ASSIGNMENT
V
CC
16
O0
15
O1
14
O2
13
O3
12
O4
11
O5
10
O6
9
High Speed: t
PD
= 5.5 ns (Typ) at V
CC
= 3.3 V
Low Power Dissipation: I
CC
= 4
mA
(Max) at T
A
= 25
°C
Power Down Protection Provided on Inputs
Balanced Propagation Delays
Low Noise: V
OLP
= 0.5 V (Max)
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300 mA
ESD Performance:
Human Body Model > 2000 V;
Machine Model > 200 V
•
These Devices are Pb−Free and are RoHS Compliant
1
A0
2
A1
3
A2
4
E1
5
E2
6
E3
7
8
O7 GND
16−Lead
(Top View)
PIN NAMES
Pins
A0−A2
E1−E2
E3
O0−O7
Function
Address Inputs
Enable Inputs
Enable Input
Outputs
MARKING DIAGRAMS
16
LVX138G
AWLYWW
1
SOIC−16
LVX138
A
WL, L
Y
WW, W
G or
G
1
TSSOP−16
16
LVX
138
ALYWG
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
©
Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 4
Publication Order Number:
MC74LVX138/D
MC74LVX138
15
14
A0
1
13
12
SELECT
INPUTS
A1
2
11
10
A2
3
9
7
E1
ENABLE
INPUTS
E2
E3
4
5
6
O0
O1
O2
O3
O4
O5
O6
O7
DATA
OUTPUTS
Figure 1. Logic Diagram
INPUTS
E1
H
X
X
L
L
L
L
L
L
L
L
E2
X
H
X
L
L
L
L
L
L
L
L
E3
X
X
L
H
H
H
H
H
H
H
H
A0
X
X
X
L
H
L
H
L
H
L
H
A1
X
X
X
L
L
H
H
L
L
H
H
A2
X
X
X
L
L
L
L
H
H
H
H
O0
H
H
H
L
H
H
H
H
H
H
H
O1
H
H
H
H
L
H
H
H
H
H
H
O2
H
H
H
H
H
L
H
H
H
H
H
OUTPUTS
O3
H
H
H
H
H
H
L
H
H
H
H
O4
H
H
H
H
H
H
H
L
H
H
H
O5
H
H
H
H
H
H
H
H
L
H
H
O6
H
H
H
H
H
H
H
H
H
L
H
O7
H
H
H
H
H
H
H
H
H
H
L
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level and Transitions Are Acceptable; For I
CC
reasons, DO NOT FLOAT
Inputs
A0
A1
A2
A3
A4
H
123
A0 A1 A2
E
A0 A1 A2
123
E
A0 A1 A2
123
E
A0 A1 A2
`04
123
E
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0 O1 O2 O3 O4 O5 O6 O7
O0
O31
Figure 2. Expansion to 1−of−32 Decoding
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2
MC74LVX138
MAXIMUM RATINGS
Symbol
V
CC
V
in
V
out
I
IK
I
OK
I
out
I
CC
P
D
T
stg
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Input Diode Current
Output Diode Current
DC Output Current, per Pin
DC Supply Current, V
CC
and GND Pins
Power Dissipation
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
180
–65 to +150
Unit
V
V
V
mA
mA
mA
mA
mW
_C
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.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
in
V
out
T
A
Dt/DV
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Operating Temperature, All Package Types
Input Rise and Fall Time
Parameter
Min
2.0
0
0
−40
0
Max
3.6
5.5
V
CC
+85
100
Unit
V
V
V
_C
ns/V
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.
DC ELECTRICAL CHARACTERISTICS
V
CC
V
2.0
3.0
3.6
2.0
3.0
3.6
I
OH
= −50mA
I
OH
= −50mA
I
OH
= −4mA
I
OL
= 50mA
I
OL
= 50mA
I
OL
= 4mA
V
in
= 5.5V or GND
V
in
= V
CC
or GND
2.0
3.0
3.0
2.0
3.0
3.0
3.6
3.6
T
A
= 25°C
Min
1.5
2.0
2.4
−
−
−
1.9
2.9
2.58
−
−
−
−
−
Typ
−
−
−
−
−
−
2.0
3.0
−
0.0
0.0
−
−
−
Max
−
−
−
0.5
0.8
0.8
−
−
−
0.1
0.1
0.36
±0.1
4.0
T
A
= −40 to 85°C
Min
1.5
2.0
2.4
−
−
−
1.9
2.9
2.48
−
−
−
−
−
Max
−
−
−
0.5
0.8
0.8
−
−
−
0.1
0.1
0.44
±1.0
40.0
Unit
V
Symbol
V
IH
Parameter
High−Level Input Voltage
Test Conditions
V
IL
Low−Level Input Voltage
V
V
OH
High−Level Output Voltage
(V
in
= V
IH
or V
IL
)
Low−Level Output Voltage
(V
in
= V
IH
or V
IL
)
Input Leakage Current
Quiescent Supply Current
V
V
OL
V
I
in
I
CC
mA
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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3
MC74LVX138
AC ELECTRICAL CHARACTERISTICS
(Input t
r
= t
f
= 3.0ns)
T
A
= 25°C
Symbol
t
PLH
,
t
PHL
Parameter
Propagation Delay
Input to Output
Test Conditions
V
CC
= 2.7V
V
CC
= 3.3
±
0.3V
t
PLH
,
t
PHL
Propagation Delay
E3 to O
V
CC
= 2.7V
V
CC
= 3.3
±
0.3V
t
PLH
,
t
PHL
Propagation Delay
E1 or E2 to O
V
CC
= 2.7V
V
CC
= 3.3
±
0.3V
t
OSHL
t
OSLH
Output−to−Output Skew
(Note 1)
V
CC
= 2.7V
V
CC
= 3.3
±
0.3V
C
L
= 15pF
C
L
= 50pF
C
L
= 15pF
C
L
= 50pF
C
L
= 15pF
C
L
= 50pF
C
L
= 15pF
C
L
= 50pF
C
L
= 15pF
C
L
= 50pF
C
L
= 15pF
C
L
= 50pF
C
L
= 50pF
C
L
= 50pF
Min
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Typ
7.1
9.6
5.5
8.0
8.7
11.2
6.8
9.3
8.8
11.3
6.9
9.4
−
−
Max
13.8
17.3
8.8
12.3
16.3
19.8
10.6
14.1
16.0
19.5
10.4
13.9
2.5
2.5
T
A
= −40 to 85°C
Min
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
−
−
Max
16.5
20.0
10.5
14.0
19.5
23.0
12.5
16.0
18.5
22.0
11.5
15.0
2.5
2.5
ns
ns
ns
Unit
ns
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (t
OSHL
) or LOW−to−HIGH (t
OSLH
); parameter
guaranteed by design.
CAPACITIVE CHARACTERISTICS
T
A
= 25°C
Symbol
Cin
C
PD
Input Capacitance
Power Dissipation Capacitance (Note 2)
Parameter
Min
−
−
Typ
4
34
Max
10
−
T
A
= −40 to 85°C
Min
−
−
Max
10
−
Unit
pF
pF
2. C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: I
CC(OPR
)
= C
PD
V
CC
f
in
+ I
CC
. C
PD
is used to determine the no−load dynamic
power consumption; P
D
= C
PD
V
CC2
f
in
+ I
CC
V
CC
.
NOISE CHARACTERISTICS
(Input t
r
= t
f
= 3.0ns, C
L
= 50pF, V
CC
= 3.3V, Measured in SOIC Package)
T
A
= 25°C
Symbol
V
OLP
V
OLV
V
IHD
V
ILD
Quiet Output Maximum Dynamic V
OL
Quiet Output Minimum Dynamic V
OL
Minimum High Level Dynamic Input Voltage
Maximum Low Level Dynamic Input Voltage
Characteristic
Typ
−
−
−
−
Max
0.5
−0.5
2.0
0.8
Unit
V
V
V
V
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4
MC74LVX138
SWITCHING WAVEFORMS
VALID
A
t
PLH
O
50% V
CC
50%
t
PHL
O
VALID
V
CC
GND
E3
t
PHL
50% V
CC
50%
GND
t
PLH
V
CC
Figure 3. .
Figure 4. .
V
CC
E2 or E1
50%
t
PHL
O
50% V
CC
t
PLH
GND
Figure 5.
TEST CIRCUIT
TEST POINT
OUTPUT
DEVICE
UNDER
TEST
C
L
*
*Includes all probe and jig capacitance
Figure 6.
ORDERING INFORMATION
Device
MC74LVX138DR2G
MC74LVX138DTR2G
Package
SOIC−16
(Pb−Free)
TSSOP−16
(Pb−Free)
Shipping
†
2500 Tape & Reel
2500 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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