Revised February 2005
74LVX125
Low Voltage Quad Buffer with 3-STATE Outputs
General Description
Features
The LVX125 contains four independent non-inverting buffers with 3-STATE outputs. The inputs tolerate voltages up
to 7V allowing the interface of 5V systems to 3V systems.
■ Input voltage level 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
Package Description
Number
74LVX125M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74LVX125SJ
M14D
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX125MTC
MTC14
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74LVX125MTCX_NL
(Note 1)
MTC14
Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1: “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Connection Diagram
Logic Symbol
IEEE/IEC
Truth Table
Inputs
Pin Descriptions
OEn
Pin Names
Description
An
Inputs
OEn
Output Enable Inputs
On
Outputs
© 2005 Fairchild Semiconductor Corporation
Output
An
On
L
L
L
L
H
H
H
X
Z
H HIGH Voltage Level
L LOW Voltage Level
Z High Impedance
X Immaterial
DS012007
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74LVX125 Low Voltage Quad Buffer with 3-STATE Outputs
February 1994
74LVX125
Absolute Maximum Ratings(Note 2)
Recommended Operating
Conditions (Note 3)
0.5V to 7.0V
Supply Voltage (VCC)
DC Input Diode Current
(IIK) VI
Supply Voltage (VCC)
0.5V
20 mA
0.5V to 7.0V
DC Input Voltage (VI)
VO
0.5V
VCC 0.5V
0V to 5.5V
Output Voltage (VO)
DC Output Diode Current (IOK)
VO
2.0V to 3.6V
Input Voltage (VI)
0V to VCC
40qC to 85qC
Operating Temperature (TA)
Output Voltage (VO)
DC Output Source/Sink Current (IO)
20 mA
20 mA
0.5V to VCC 0.5V
r25 mA
Input Rise and Fall Time ('t/'V)
Note 2: 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.
DC VCC or Ground Current
r50 mA
65qC to 150qC
(ICC or IGND )
Storage Temperature Range (TSTG)
Power Dissipation
0 ns/V to 100 ns/V
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
180 mW
DC Electrical Characteristics
Symbol
Parameter
VCC
TA
(V)
VIH
VIL
VOH
VOL
IOZ
Min
25qC
TA
Typ
Max
40qC to 85qC
Min
HIGH Level
2.0
1.5
1.5
Input Voltage
3.0
2.0
2.0
3.6
2.4
2.4
2.0
0.5
0.5
Input Voltage
3.0
0.8
0.8
3.6
0.8
0.8
HIGH Level
2.0
1.9
2.0
1.9
3.0
2.9
3.0
2.9
3.0
2.58
V
VIN
V
2.0
0.0
Output Voltage
3.0
0.0
0.1
0.1
VIN
Input Leakage
ICC
Quiescent Supply
IOH
50 PA
VIH
IOH
50 PA
IOH
4 mA
VIL or
IOL
50 PA
VIH
IOL
50 PA
IOL
4 mA
0.1
0.1
3.0
0.36
0.44
V
3.6
r0.25
r2.5
PA
3.6
r0.1
r1.0
PA
VIN
5.5V or GND
3.6
4.0
40.0
PA
VIN
VCC or GND
Off-State Current
IIN
VIL or
2.48
LOW Level
3-STATE Output
Conditions
V
LOW Level
Output Voltage
Units
Max
VIN
VOUT
VIH or VIL
VCC or GND
Current
Current
Noise Characteristics
Symbol
(Note 4)
VCC
Parameter
(V)
TA
Typ
25qC
Units
CL (pF)
50
Limit
VOLP
Quiet Output Maximum Dynamic VOL
3.3
0.3
0.8
V
VOLV
Quiet Output Minimum Dynamic VOL
3.3
0.3
0.8
V
50
VIHD
Minimum HIGH Level Dynamic Input Voltage
3.3
2.0
V
50
VILD
Maximum LOW Level Dynamic Input Voltage
3.3
0.8
V
50
Note 4: Input tr
tf
3 ns
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74LVX125
AC Electrical Characteristics
Symbol
tPLH
Propagation Delay Time
tPHL
Data to Output
tPZH
VCC
Parameter
(V)
TA
Min
25qC
TA
40qC to 85qC
Typ
Max
Min
Max
2.7
5.8
10.1
1.0
13.5
8.3
13.6
1.0
17.0
3.3 r 0.3
4.4
6.2
1.0
8.5
6.9
9.7
1.0
5.3
9.3
7.8
Units
Conditions
CL
15 pF
CL
50 pF
CL
15 pF
12.0
CL
50 pF
1.0
12.5
CL
15 pF, RL
1 k:
12.8
1.0
16.0
CL
50 pF, RL
1 k:
4.0
5.6
1.0
7.5
CL
15 pF, RL
1 k:
6.5
9.1
1.0
11.0
CL
50 pF, RL
1 k:
2.7
10.0
15.7
1.0
19.0
CL
50 pF, RL
1 k:
3.3 r 0.3
8.3
11.2
1.0
13.0
CL
50 pF, RL
1 k:
CL
50 pF
Output Enable Time
2.7
tPZL
3.3 r 0.3
tPHZ
Output Disable
tPLZ
Time
tOSHL
Output to Output
2.7
tOSLH
Skew (Note 5)
3.3
Note 5: Parameter guaranteed by design. tOSLH
|tPLHm tPLHn|, tOSHL
1.5
1.5
1.5
1.5
ns
ns
ns
ns
|t PHLm t PHLn|
Capacitance
Symbol
TA
Parameter
Min
25qC
TA
Typ
Max
10
CIN
Input Capacitance
4.0
CPD
Power Dissipation
14
40qC to 85qC
Min
Units
Max
10
pF
pF
Capacitance (Note 6)
Note 6: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
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74LVX125
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M14A
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74LVX125
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M14D
5
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74LVX125 Low Voltage Quad Buffer with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC14
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.
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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
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1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
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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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