74LVC125A
Low-Voltage CMOS
Quad Buffer
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
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The 74LVC125A is a high performance, non−inverting quad buffer
operating from a 1.2 to 3.6 V supply. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A V
I
specification of 5.5 V allows 74LVC125A inputs to be safely driven
from 5.0 V devices. The 74LVC125A is suitable for memory address
driving and all TTL level bus oriented transceiver applications.
Current drive capability is 24 mA at the outputs. The Output Enable
(OEn) inputs, when HIGH, disable the outputs by placing them in a
HIGH Z condition.
Features
MARKING
DIAGRAMS
14
14
1
SOIC−14
D SUFFIX
CASE 751A
1
LVC125AG
AWLYWW
•
•
•
•
•
•
Designed for 1.2 to 3.6 V V
CC
Operation
5.0 V Tolerant − Interface Capability With 5.0 V TTL Logic
Supports Live Insertion and Withdrawal
I
OFF
Specification Guarantees High Impedance When V
CC
= 0 V
24 mA Output Sink and Source Capability
Near Zero Static Supply Current in all Three Logic States (10
mA)
Substantially Reduces System Power Requirements
•
ESD Performance:
Human Body Model >2000 V
Machine Model >200 V
•
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
14
14
1
TSSOP−14
DT SUFFIX
CASE 948G
LVC
125A
ALYWG
G
1
A
L, WL
Y, YY
W, WW
G or
G
= 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 7 of this data sheet.
©
Semiconductor Components Industries, LLC, 2015
1
October, 2015 − Rev. 0
Publication Order Number:
74LVC125A/D
74LVC125A
V
CC
14
OE3
13
D3
12
O3
11
OE2
10
D2
9
O2
8
OE0
D0
OE1
1
OE0
2
D0
3
O0
4
OE1
5
D1
6
O1
7
GND
D1
1
2
4
5
6
3
OE2
O0 D2
OE3
O1 D3
10
9
13
12
11
O3
8
O2
Figure 1. Pinout: 14−Lead (Top View)
Figure 2. Logic Diagram
PIN NAMES
Pins
OEn
Dn
On
Function
Output Enable Inputs
Data Inputs
3−State Outputs
TRUTH TABLE
INPUTS
OEn
L
L
H
Dn
L
H
X
OUTPUTS
On
L
H
Z
H
= High Voltage Level
L
= Low Voltage Level
Z
= High Impedance State
X
= High or Low Voltage Level and Transitions Are
Acceptable; for I
CC
reasons, DO NOT FLOAT Inputs
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74LVC125A
MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Value
−0.5 to +6.5
−0.5
≤
V
I
≤
+6.5
−0.5
≤
V
O
≤
+6.5
−0.5
≤
V
O
≤
V
CC
+ 0.5
I
IK
I
OK
DC Input Diode Current
DC Output Diode Current
−50
−50
+50
I
O
I
CC
I
GND
T
STG
T
L
T
J
q
JA
MSL
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
Lead Temperature, 1 mm from Case for
10 Seconds
Junction Temperature Under Bias
Thermal Resistance (Note 2)
Moisture Sensitivity
±50
±100
±100
−65 to +150
T
L
= 260
T
J
= 135
SOIC = 85
TSSOP = 100
Level 1
Output in 3−State
Output in HIGH or LOW State
(Note 1)
V
I
< GND
V
O
< GND
V
O
> V
CC
Condition
Unit
V
V
V
V
mA
mA
mA
mA
mA
mA
°C
°C
°C
°C/W
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.
1. I
O
absolute maximum rating must be observed.
2. Measured with minimum pad spacing on an FR4 board, using 10 mm−by−1 inch, 2 ounce copper trace no air flow.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
Supply Voltage
Operating
Functional
Input Voltage
Output Voltage
HIGH or LOW State
3−State
HIGH Level Output Current
V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
LOW Level Output Current
V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
Operating Free−Air Temperature
Input Transition Rise or Fall Rate
V
CC
= 1.65 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
−40
0
0
Parameter
Min
1.65
1.2
0
0
0
Typ
Max
3.6
3.6
5.5
V
CC
5.5
mA
−24
−12
mA
24
12
+125
20
10
°C
ns/V
V
V
Units
V
V
I
V
O
I
OH
I
OL
T
A
Dt/DV
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.
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3
74LVC125A
DC ELECTRICAL CHARACTERISTICS
−405C to +855C
Min
1.08
0.65 x
V
CC
1.7
2.0
−
−
−
−
Typ
(Note 3)
−
−
−
−
−
−
−
−
Max
−
−
−
−
0.12
0.35 x
V
CC
0.7
0.8
−405C to +1255C
Min
1.08
0.65 x
V
CC
1.7
2.0
−
−
−
−
Typ
(Note 3)
−
−
−
−
−
−
−
−
Max
−
−
−
−
0.12
0.35 x
V
CC
0.7
0.8
V
−
−
−
−
−
−
−
−
−
−
−
−
V
CC
−
0.3
1.05
1.65
2.05
2.25
2.0
−
−
−
−
−
−
−
−
−
−
−
−
V
−
−
−
−
−
±0.1
±0.1
±0.1
0.1
5
0.2
0.45
0.6
0.4
0.55
±5
±5
±10
10
500
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
±0.1
±0.1
±0.1
0.1
5
0.3
0.65
0.8
0.6
0.8
±20
±20
±20
40
5000
mA
mA
mA
mA
mA
V
Symbol
V
IH
Parameter
HIGH−level input
voltage
Conditions
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Unit
V
V
IL
LOW−level input
voltage
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
OH
HIGH−level output
voltage
V
I
= V
IH
or V
IL
I
O
= −100
mA;
V
CC
= 1.65 V to 3.6 V
I
O
= −4 mA; V
CC
= 1.65 V
I
O
= −8 mA; V
CC
= 2.3 V
I
O
= −12 mA; V
CC
= 2.7 V
I
O
= −18 mA; V
CC
= 3.0 V
I
O
= −24 mA; V
CC
= 3.0 V
V
CC
−
0.2
1.2
1.8
2.2
2.4
2.2
V
OL
LOW−level output
voltage
V
I
= V
IH
or V
IL
I
O
= 100
mA;
V
CC
= 1.65 V to 3.6 V
I
O
= 4 mA; V
CC
= 1.65 V
I
O
= 8 mA; V
CC
= 2.3 V
I
O
= 12 mA; V
CC
= 2.7 V
I
O
= 24 mA; V
CC
= 3.0 V
−
−
−
−
−
−
−
−
−
−
I
I
I
OZ
I
OFF
I
CC
DI
CC
Input leakage current
OFF−state output
current
Power−off leakage
current
Supply current
Additional supply
current
V
I
= 5.5V or GND V
CC
= 3.6 V
VI = VIH or VIL;
V
O
= 5.5 V or GND; V
CC
= 3.6 V
V
I
or V
O
= 5.5 V; V
CC
= 0.0 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 3.6 V
per input pin;
V
I
= V
CC
− 0.6 V; I
O
= 0 A;
V
CC
= 2.7 V to 3.6 V
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.
3. All typical values are measured at T
A
= 25°C and V
CC
= 3.3 V, unless stated otherwise.
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74LVC125A
AC ELECTRICAL CHARACTERISTICS
(t
R
= t
F
= 2.5 ns)
−405C to +855C
Symbol
t
pd
Parameter
Propagation Delay (Note 5)
Dn to On
Conditions
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
en
Enable Time (Note 6)
OEn to On
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
dis
Disable Time (Note 7)
OEn to On
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
sk(0)
Output Skew Time (Note 8)
Min
−
1.5
1.0
1.5
1.0
−
1.0
0.5
1.5
1.0
−
2.2
0.5
1.5
1.0
−
Typ
1
12.0
5.4
2.9
2.8
2.5
16.0
5.0
2.9
3.1
2.3
7.0
4.6
2.6
3.1
3.2
−
Max
−
11.0
5.7
5.5
4.8
−
12.2
6.8
6.6
5.4
−
7.5
4.2
5.0
4.6
1
−405C to +1255C
Min
−
1.5
1.0
1.5
1.0
−
1.0
0.5
1.5
1.0
−
2.2
0.5
1.5
1.0
−
Typ
1
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Max
−
12.8
6.7
7.0
6.0
−
14.2
7.9
8.5
7.0
−
8.7
5.0
6.5
6.0
1.5
ns
ns
ns
Unit
ns
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.
4. Typical values are measured at T
A
= 25°C and V
CC
= 3.3 V, unless stated otherwise.
5. t
pd
is the same as t
PLH
and t
PHL
.
6. t
en
is the same as t
PZL
and t
PZH
.
7. t
dis
is the same as t
PLZ
and t
PHZ
.
8. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
T
A
= +25°C
Symbol
V
OLP
V
OLV
Characteristic
Dynamic LOW Peak Voltage (Note 9)
Dynamic LOW Valley Voltage (Note 9)
Condition
V
CC
= 3.3 V, C
L
= 50 pF, V
IH
= 3.3 V, V
IL
= 0 V
V
CC
= 2.5 V, C
L
= 30 pF, V
IH
= 2.5 V, V
IL
= 0 V
V
CC
= 3.3 V, C
L
= 50 pF, V
IH
= 3.3 V, V
IL
= 0 V
V
CC
= 2.5 V, C
L
= 30 pF, V
IH
= 2.5 V, V
IL
= 0 V
Min
Typ
0.8
0.6
−0.8
−0.6
Max
Unit
V
V
9. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
C
IN
C
OUT
C
PD
Parameter
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
(Note 10)
Condition
V
CC
= 3.3 V, V
I
=
0
V or V
CC
V
CC
= 3.3 V, V
I
=
0
V or V
CC
Per input; V
I
= GND or V
CC
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 3.0 V to 3.6 V
10. C
PD
is used to determine the dynamic power dissipation (P
D
in
mW).
P
D
= C
PD
x V
CC2
x
fi x N +
S
(C
L
x
V
CC2
x
fo) where:
fi = input frequency in MHz; fo = output frequency in MHz
C
L
= output load capacitance in pF V
CC
= supply voltage in Volts
N = number of outputs switching
S(C
L
x V
CC2
x fo) = sum of the outputs.
6.0
9.4
12.4
Typical
4.0
5.0
Unit
pF
pF
pF
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