Revised April 2005
74LVX541
Low Voltage Octal Buffer/Line Driver with
3-STATE Outputs
General Description
Features
The LVX541 is an octal non-inverting buffer and line driver
designed to be employed as a memory address driver,
clock driver and bus oriented transmitter or receiver which
provides improved PC board density. The inputs tolerate up
to 7V allowing interface of 5V systems to 3V systems.
■ Input voltage translation from 5V to 3V
■ Ideal for low power/low noise 3.3V applications
■ Guaranteed simultaneous switching noise level and
dynamic threshold performance
Ordering Code:
Order Number
Package Number
74LVX541M
74LVX541SJ
74LVX541MTC
Package Description
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
M20D
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Connection Diagram
Logic Symbol
IEEE/IEC
Pin Descriptions
Pin Names
Truth Table
Inputs
Descriptions
OE1, OE2
3-STATE Output Enable Inputs
I0 - I7
Inputs
O0 - O7
3-STATE Outputs
OE1
DS500291
I
L
L
H
H
H
X
X
Z
X
H
X
Z
L
L
L
L
H HIGH Voltage Level
L LOW Voltage Level
© 2005 Fairchild Semiconductor Corporation
Outputs
OE2
X Immaterial
Z High Impedance
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74LVX541 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs
September 1999
74LVX541
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions (Note 2)
0.5V to 7.0V
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI
20 mA
Output Voltage (VO)
DC Output Diode Current (IOK)
VO
0V to 5.5V
Input Voltage (VI)
0.5V to 7V
DC Input Voltage (VI)
VO
2.0V to 3.6V
Supply Voltage (VCC)
0.5V
0V to VCC
40qC to 85qC
Operating Temperature (TA)
0.5V
VCC 0.5V
20 mA
20 mA
0.5V to VCC 0.5V
DC Output Voltage (VO)
Input Rise and Fall Time ('t/'V)
DC Output Source
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
r25 mA
or Sink Current (IO)
DC VCC or Ground Current
r75 mA
65qC to 150qC
(ICC or IGND)
Storage Temperature (TSTG)
Power Dissipation
0 ns/V to 100 ns/V
Note 2: Unused inputs must be held HIGH or LOW. They may not float
180 mW
DC Electrical Characteristics
Symbol
VIH
VIL
VOH
VOL
VCC
Parameter
TA
Min
25qC
TA
Typ
Max
HIGH Level Input
2.0
1.5
1.5
Voltage
3.0
2.0
2.0
3.6
2.4
2.4
Max
2.0
0.5
Voltage
3.0
0.8
0.8
3.6
0.8
0.8
Conditions
0.5
HIGH Level Output
2.0
1.9
2.0
1.9
Voltage
3.0
2.9
3.0
2.9
3.0
2.58
V
V
VIN
IOH
50 PA
VIH or VIL IOH
50 PA
IOH
4 mA
IOL
50 PA
VIH or VIL IOL
50 PA
2.48
LOW Level Output
2.0
0.0
Voltage
3.0
0.0
3-STATE Output
Units
V
LOW Level Input
0.1
3.0
IOZ
40qC to 85qC
Min
0.1
0.1
0.1
0.36
0.44
V
VIN
IOL
VIN
3.6
r0.25
r2.5
PA
IIN
Input Leakage Current
3.6
r0.1
r1.0
PA
VIN
5.5V or GND
ICC
Quiescent Supply Current
3.6
4.0
40.0
PA
VIN
VCC or GND
OFF-State Current
4 mA
VIH or VIL
VOUT
VCC or GND
Noise Characteristics (Note 3)
Symbol
Parameter
VCC
TA
(V)
Typ
25qC
Units
Conditions
Limits
VOLP
Quiet Output Maximum Dynamic VOL
3.3
0.5
0.8
V
CL
50 pF
VOLV
Quiet Output Minimum Dynamic VOL
3.3
0.5
0.8
V
CL
50 pF
VIHD
Minimum HIGH Level Dynamic Input Voltage
3.3
2.0
V
CL
50 pF
VILD
Maximum HIGH Level Dynamic Input Voltage
3.3
0.8
V
CL
50 pF
Note 3: Input tr
tf
3 ns.
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2
Symbol
VCC
Parameter
tPLH
Propagation Delay
tPHL
Time
(V)
TA
Min
2.7
3.3 r 0.3
tPZL
3-STATE Output
tPZH
Enable Time
2.7
25qC
TA
Max
6.1
11.3
1.0
13.5
CL
15 pF
8.6
14.9
1.0
17.0
CL
50 pF
4.7
7.0
1.0
8.5
CL
15 pF
7.2
10.5
1.0
12.0
CL
50 pF
7.1
13.8
1.0
16.5
CL
15 pF
RL
1 k:
CL
50 pF
RL
1 k:
CL
15 pF
RL
1 k:
CL
50 pF
RL
1 k:
CL
50 pF
RL
1 k:
CL
50 pF
17.3
6.8
1.0
10.5
1.0
14.0
ns
20.0
ns
12.5
1.0
16.0
tPLZ
3-STATE Output
2.7
11.6
17.9
1.0
20.0
tPHZ
Disable Time
3.3 r 0.3
10.7
15.4
1.0
17.5
tOSLH
Output to Output
2.7
1.5
1.5
tOSHL
Skew (Note 4)
3.3
1.5
1.5
|tPLHm tPLHn|; tOSHL
Conditions
Min
9.3
Note 4: Parameter guaranteed by design. tOSLH
Units
Max
9.6
3.3 r 0.3
40qC to 85qC
Typ
ns
ns
|t PHLm t PHLn|.
Capacitance
Symbol
Parameter
TA
Min
25qC
TA
Typ
Max
10
40qC to 85qC
Min
Max
10
Units
CIN
Input Capacitance
4
COUT
Output Capacitance
6
pF
pF
CPD
Power Dissipation Capacitance (Note 5)
19
pF
Note 5: CPD 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: ICC(opr.)
3
CPD x VCC x fIN ICC
8 (per bit)
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74LVX541
AC Electrical Characteristics
74LVX541
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package Number M20B
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4
74LVX541
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M20D
5
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74LVX541 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC20
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
2. A critical component in any component of a life support
device or system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the
user.
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