INDUSTRIAL TEMPERATURE RANGE
IDT74LVC139A
3.3V CMOS DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
1
MAY 1999
INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
1999 Integrated Device Technology, Inc.
DSC-4720/1
FEATURES:
0.5 MICRON CMOS Technology
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
V
CC
= 3.3V 0.3V, Normal Range
V
CC
= 2.7V to 3.6V, Extended Range
CMOS power levels (0.4
W typ. static)
Rail-to-Rail output swing for increased noise margin
All inputs, outputs, and I/Os are 5V tolerant
Supports hot insertion
Available in QSOP, SOIC, SSOP, and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
DRIVE FEATURES:
High Output Drivers: 24mA
Reduced system switching noise
APPLICATIONS:
5V and 3.3V mixed voltage systems
Data communication and telecommunication systems
IDT74LVC139A
DESCRIPTION:
This dual 2-line to 4-line decoder/demultiplexer is built using advanced
dual metal CMOS technology. The LVC139A comprises two individual 2-
line to 4-line decoders in a single package. The active-low enable (G) input
can be used as a data line in demultiplexing applications. This decoder/
demultiplexer features fully buffered inputs, each of which represents only
one normalized load to its driving circuit.
Inputs can be driven from either 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mixed 3.3V/5V supply system.
The LVC139A has been designed with a 24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
3.3V CMOS DUAL
2-LINE TO 4-LINE
DECODER/DEMULTIPLEXER
WITH 5 VOLT TOLERANT I/O
1Y0
4
1G
1Y1
5
1Y2
6
1Y3
7
1A
1
2
3
1B
Select
Inputs
2Y0
12
2G
2Y1
11
2Y2
10
2Y3
9
2A
15
14
13
2B
Select
Inputs
Data
Outputs
INDUSTRIAL TEMPERATURE RANGE
2
IDT74LVC139A
3.3V CMOS DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
NOTE:
1. As applicable to the device type.
Symbol
Parameter
(1)
Conditions
Typ.
Max.
Unit
C
IN
Input Capacitance
V
IN
= 0V
4.5
6
pF
C
OUT
Output Capacitance
V
OUT
= 0V
5.5
8
pF
C
I/O
I/O Port Capacitance
V
IN
= 0V
6.5
8
pF
CAPACITANCE
(T
A
= +25C, F = 1.0MHz)
Symbol
Description
Max
Unit
V
TERM
Terminal Voltage with Respect to GND
0.5 to +6.5
V
T
STG
Storage Temperature
65 to +150
C
I
OUT
DC Output Current
50 to +50
mA
I
IK
Continuous Clamp Current,
50
mA
I
OK
V
I
< 0 or V
O
< 0
I
CC
Continuous Current through each
100
mA
I
SS
V
CC
or GND
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
PIN CONFIGURATION
QSOP/ SOIC/ SSOP/ TSSOP
TOP VIEW
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
V
CC
1
A
2
G
1
B
1
Y
0
GND
2
A
2
B
1
G
1
Y
1
1
Y
2
1
Y
3
2
Y
0
2
Y
1
2
Y
2
2
Y
3
Pin Names
Description
x G
Input Enables (Active LOW)
xA, xB
Select Data Inputs
xYx
Data Outputs
PIN DESCRIPTION
FUNCTION TABLE
(1)
Inputs
Outputs
Select
xG
xB
xA
xY
3
xY
2
xY
1
xY
0
L
L
L
H
H
H
L
L
L
H
H
H
L
H
L
H
L
H
L
H
H
L
H
H
L
H
H
H
H
X
X
H
H
H
H
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC139A
3.3V CMOS DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
3
Symbol
Parameter
Test Conditions
Min.
Typ.
(1)
Max.
Unit
V
IH
Input HIGH Voltage Level
V
CC
= 2.3V to 2.7V
1.7
--
--
V
V
CC
= 2.7V to 3.6V
2
--
--
V
IL
Input LOW Voltage Level
V
CC
= 2.3V to 2.7V
--
--
0.7
V
V
CC
= 2.7V to 3.6V
--
--
0.8
I
IH
Input Leakage Current
V
CC
= 3.6V
V
I
= 0 to 5.5V
--
--
5
A
I
IL
I
OZH
High Impedance Output Current
V
CC
= 3.6V
V
O
= 0 to 5.5V
--
--
10
A
I
OZL
(3-State Output pins)
I
OFF
Input/Output Power Off Leakage
V
CC
= 0V, V
IN
or V
O
5.5V
--
--
50
A
V
IK
Clamp Diode Voltage
V
CC
= 2.3V, I
IN
= 18mA
--
0.7
1.2
V
V
H
Input Hysteresis
V
CC
= 3.3V
--
100
--
mV
I
CCL
Quiescent Power Supply Current
V
CC
= 3.6V, V
IN
= GND or V
CC
--
--
10
A
I
CCH
I
CCZ
I
CC
Quiescent Power Supply Current
One input at V
CC
- 0.6V, other inputs at V
CC
or GND
--
--
500
A
Variation
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= 40C to +85C
NOTE:
1. Typical values are at V
CC
= 3.3V, +25C ambient.
NOTE:
1. V
IH
and V
IL
must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate V
CC
range.
T
A
= 40C to + 85C.
OUTPUT DRIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
(1)
Min.
Max.
Unit
V
OH
Output HIGH Voltage
V
CC
= 2.3V to 3.6V
I
OH
= 0.1mA
V
CC
0.2
--
V
V
CC
= 2.3V
I
OH
= 6mA
2
--
V
CC
= 2.3V
I
OH
= 12mA
1.7
--
V
CC
= 2.7V
2.2
--
V
CC
= 3V
2.4
--
V
CC
= 3V
I
OH
= 24mA
2.2
--
V
OL
Output LOW Voltage
V
CC
= 2.3V to 3.6V
I
OL
= 0.1mA
--
0.2
V
V
CC
= 2.3V
I
OL
= 6mA
--
0.4
I
OL
= 12mA
--
0.7
V
CC
= 2.7V
I
OL
= 12mA
--
0.4
V
CC
= 3V
I
OL
= 24mA
--
0.55
INDUSTRIAL TEMPERATURE RANGE
4
IDT74LVC139A
3.3V CMOS DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
SWITCHING CHARACTERISTICS
(1)
V
CC
= 2.5V 0.2V
V
CC
= 2.7V
V
CC
= 3.3V 0.3V
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
t
PLH
Propagation Delay
--
--
--
7.3
1
6.2
ns
t
PHL
xA or xB to xYx
t
PLH
Propagation Delay
--
--
--
5.2
1
4.7
ns
t
PHL
xG to xYx
t
SK
(o)
Output Skew
(2)
--
--
--
--
--
1
ns
NOTES:
1. See TEST CIRCUITS AND WAVEFORMS. T
A
= 40C to + 85C.
2
Skew between any two outputs of the same package and switching in the same direction.
OPERATING CHARACTERISTICS, V
CC
= 3.3V 0.3V, T
A
= 25C
Symbol
Parameter
Test Conditions
Typical
Unit
C
PD
Power Dissipation Capacitance per Gate
C
L
= 0pF, f = 10Mhz
30.5
pF
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC139A
3.3V CMOS DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
5
Open
V
LOAD
GND
V
CC
Pulse
Generator
D.U.T.
500
500
C
L
R
T
V
IN
V
OUT
(1, 2)
LVC QUAD Link
INPUT
V
IH
0V
V
OH
V
OL
t
PLH1
t
SK
(x)
OUTPUT 1
OUTPUT 2
t
PHL1
t
SK
(x)
t
PLH2
t
PHL2
V
T
V
T
V
OH
V
T
V
OL
t
SK
(x)
= t
PLH2
-
t
PLH1
or
t
PHL2
-
t
PHL1
LVC QUAD Link
DATA
INPUT
0V
0V
0V
0V
t
REM
TIMING
INPUT
ASYNCHRONOUS
CONTROL
SYNCHRONOUS
CONTROL
t
SU
t
H
t
SU
t
H
V
IH
V
T
V
IH
V
T
V
IH
V
T
V
IH
V
T
LOW-HIGH-LOW
PULSE
HIGH-LOW-HIGH
PULSE
V
T
t
W
SAME PHASE
INPUT TRANSITION
OPPOSITE PHASE
INPUT TRANSITION
0V
0V
V
OH
V
OL
t
PLH
t
PHL
t
PHL
t
PLH
OUTPUT
V
T
V
IH
V
T
V
T
V
IH
V
T
CONTROL
INPUT
t
PLZ
0V
OUTPUT
NORMALLY
LOW
t
PZH
0V
SWITCH
CLOSED
OUTPUT
NORMALLY
HIGH
ENABLE
DISABLE
SWITCH
OPEN
t
PHZ
0V
V
LZ
V
OH
V
T
V
T
t
PZL
V
LOAD/2
V
LOAD/2
V
IH
V
T
V
OL
V
HZ
LVC QUAD Link
LVC QUAD Link
LVC QUAD Link
LVC QUAD Link
TEST CIRCUITS AND WAVEFORMS
Propagation Delay
Test Circuit for All Outputs
Set-up, Hold, and Release Times
NOTES:
1. For t
SK
(o) OUTPUT1 and OUTPUT2 are any two outputs.
2. For t
SK
(b) OUTPUT1 and OUTPUT2 are in the same bank.
DEFINITIONS:
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate
10MHz; t
F
2ns; t
R
2ns.
2. Pulse Generator for All Pulses: Rate
10MHz; t
F
2.5ns; t
R
2.5ns.
Output Skew - t
SK
(
X
)
Pulse Width
Symbol
V
CC(1)
= 2.5V0.2V
V
CC(2)
= 3.3V0.3V & 2.7V
Unit
V
LOAD
2 x Vcc
6
V
V
IH
Vcc
2.7
V
V
T
Vcc
/ 2
1.5
V
V
LZ
150
300
mV
V
HZ
150
300
mV
C
L
30
50
pF
TEST CONDITIONS
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
V
LOAD
Enable Low
Disable High
GND
Enable High
All Other Tests
Open
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
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