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FEATURES
See mechanical drawings for dimensions.
DCT PACKAGE
(TOP VIEW)
DCU PACKAGE
(TOP VIEW)
YZP PACKAGE
(BOTTOM VIEW)
1VCC
8
1OE
27
1A 2OE
36
2Y 1Y
45
GND 2A
36
1Y2Y
8
1VCC
1OE
5
GND 42A
272OE1A
GND 5
42A
3 6 1Y2Y
272OE1A
8VCC
1
1OE
DESCRIPTION/ORDERING INFORMATION
SN74LVC2G125
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES204MAPRIL 1999REVISED JANUARY 2007
Available in the Texas Instruments Ioff Supports Partial-Power-Down Mode
NanoFree™ Package Operation
Supports 5-V VCC Operation Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
Inputs Accept Voltages to 5.5 V
ESD Protection Exceeds JESD 22
Max tpd of 4.3 ns at 3.3 V
2000-V Human-Body Model (A114-A)
Low Power Consumption, 10-µA Max ICC
200-V Machine Model (A115-A)
•±24-mA Output Drive at 3.3 V
1000-V Charged-Device Model (C101)
Typical VOLP (Output Ground Bounce)
<0.8VatV
CC = 3.3 V, TA=25°C
Typical VOHV (Output VOH Undershoot)
>2VatV
CC = 3.3 V, TA=25°C
The SN74LVC2G125 is a dual bus buffer gate, designed for 1.65-V to 5.5-V VCC operation. This device features
dual line drivers with 3-state outputs. The outputs are disabled when the associated output-enable (OE) input is
high.
NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the
package.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
ORDERING INFORMATION
TAPACKAGE(1) ORDERABLE PART NUMBER TOP-SIDE MARKING(2)
NanoFree™ WCSP (DSBGA) Reel of 3000 SN74LVC2G125YZPR _ _ _CM_
0.23-mm Large Bump YZP (Pb-free)
SSOP DCT Reel of 3000 SN74LVC2G125DCTR C25_ _ _
–40°C to 85°C
Reel of 3000 SN74LVC2G125DCUR
VSSOP DCU C25_
Reel of 250 SN74LVC2G125DCUT
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) DCT: The actual top-side marking has three additional characters that designate the year, month, and assembly/test site.
DCU: The actual top-side marking has one additional character that designates the assembly/test site.
YZP: The actual top-side marking has three preceding characters to denote year, month, and sequence code, and one following
character to designate the assembly/test site. Pin 1 identifier indicates solder-bump composition (1 = SnPb, = Pb-free).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
NanoFree is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright © 1999–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
www.ti.com
1A 1Y
1OE
1
26
2A 2Y
2OE
7
53
Absolute Maximum Ratings(1)
SN74LVC2G125
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES204MAPRIL 1999REVISED JANUARY 2007
FUNCTION TABLE
(EACH BUFFER)
INPUTS OUTPUT
Y
OE A
LH H
LL L
HX Z
LOGIC DIAGRAM (POSITIVE LOGIC)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VCC Supply voltage range –0.5 6.5 V
VIInput voltage range(2) –0.5 6.5 V
VOVoltage range applied to any output in the high-impedance or power-off state(2) –0.5 6.5 V
VOVoltage range applied to any output in the high or low state(2)(3) –0.5 VCC + 0.5 V
IIK Input clamp current VI< 0 –50 mA
IOK Output clamp current VO< 0 –50 mA
IOContinuous output current ±50 mA
Continuous current through VCC or GND ±100 mA
DCT package 220
θJA Package thermal impedance(4) DCU package 227 °C/W
YZP package 102
Tstg Storage temperature range –65 150 °C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input negative-voltage and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
(3) The value of VCC is provided in the recommended operating conditions table.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
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Recommended Operating Conditions(1)
SN74LVC2G125
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES204MAPRIL 1999REVISED JANUARY 2007
MIN MAX UNIT
Operating 1.65 5.5
VCC Supply voltage V
Data retention only 1.5
VCC = 1.65 V to 1.95 V 0.65 × VCC
VCC = 2.3 V to 2.7 V 1.7
VIH High-level input voltage V
VCC =3Vto3.6V 2
VCC =4.5Vto5.5V 0.7×V
CC
VCC = 1.65 V to 1.95 V 0.35 × VCC
VCC = 2.3 V to 2.7 V 0.7
VIL Low-level input voltage V
VCC =3Vto3.6V 0.8
VCC =4.5Vto5.5V 0.3×V
CC
VIInput voltage 0 5.5 V
High or low state 0 VCC
VOOutput voltage V
3-state 0 5.5
VCC = 1.65 V –4
VCC = 2.3 V –8
IOH High-level output current –16 mA
VCC =3V –24
VCC = 4.5 V –32
VCC = 1.65 V 4
VCC = 2.3 V 8
IOL Low-level output current 16 mA
VCC =3V 24
VCC = 4.5 V 32
VCC = 1.8 V ±0.15 V, 2.5 V ±0.2 V 20
t/v Input transition rise or fall rate VCC = 3.3 V ±0.3 V 10 ns/V
VCC =5V±0.5 V 5
TAOperating free-air temperature –40 85 °C
(1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
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Electrical Characteristics
Switching Characteristics
Operating Characteristics
SN74LVC2G125
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES204MAPRIL 1999REVISED JANUARY 2007
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC MIN TYP(1) MAX UNIT
IOH = –100 µA 1.65 V to 5.5 V VCC 0.1
IOH = –4 mA 1.65 V 1.2
IOH = –8 mA 2.3 V 1.9
VOH V
IOH = –16 mA 2.4
3V
IOH = –24 mA 2.3
IOH = –32 mA 4.5 V 3.8
IOL = 100 µA 1.65 V to 5.5 V 0.1
IOL = 4 mA 1.65 V 0.45
IOL = 8 mA 2.3 V 0.3
VOL V
IOL =16mA 0.4
3V
IOL =24mA 0.55
IOL = 32 mA 4.5 V 0.55
IIA or OE inputs VI= 5.5 V or GND 0 to 5.5 V ±5µA
Ioff VIor VO= 5.5 V 0 ±10 µA
IOZ VO= 0 to 5.5 V 3.6 V 10 µA
ICC VI= 5.5 V or GND, IO= 0 1.65 V to 5.5 V 10 µA
ICC One input at VCC 0.6 V, Other inputs at VCC or GND 3 V to 5.5 V 500 µA
Data inputs 3.5
CiVI=V
CC or GND 3.3 V pF
Control inputs 4
CoVO=V
CC or GND 3.3 V 6.5 pF
(1) All typical values are at VCC = 3.3 V, TA= 25°C.
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V VCC =5V
FROM TO ±0.15 V ±0.2 V ±0.3 V ±0.5 V
PARAMETER UNIT
(INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX MIN MAX
tpd A Y 3.3 9.1 1.5 4.8 1.4 4.3 1 3.7 ns
ten OE Y 4 9.9 1.9 5.6 1.2 4.7 1.2 3.8 ns
tdis OE Y 1.5 11.6 1 5.8 1.4 4.6 1 3.4 ns
TA= 25°
VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V VCC =5V
TEST
PARAMETER UNIT
CONDITIONS TYP TYP TYP TYP
Outputs enabled 19 19 20 22
Power dissipation
Cpd f = 10 MHz pF
capacitance Outputs disabled 2223
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PARAMETER MEASUREMENT INFORMATION
th
tsu
From Output
Under Test
C
(see Note A)
L
LOAD CIRCUIT
S1
VLOAD
Open
GND
RL
Data Input
Timing Input
0V
0V
0V
tW
Input
0V
Input
Output
Waveform 1
S1 at V
(see Note B)
LOAD
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
0V
»0V
Output
Output
TEST S1
t/t
PLH PHL Open
Output
Control
VM
VMVM
VM
VM
1.8 V 0.15 V±
2.5 V 0.2 V±
3.3 V 0.3 V±
5 V 0.5 V±
1kW
500 W
500 W
500 W
VCC RL
2×V
CC
2×V
CC
6V
2×V
CC
VLOAD CL
30 pF
30 pF
50 pF
50 pF
0.15 V
0.15 V
0.3 V
0.3 V
VD
3V
VI
VCC/2
VCC/2
1.5 V
VCC/2
VM
£2ns
£2ns
£2.5 ns
£2.5 ns
INPUTS
RL
t/t
rf
VCC
VCC
VCC
VLOAD
t/t
PLZ PZL
GND
t/t
PHZ PZH
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
NOTES: A. C includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, Z = 50 .
D. The outputs are measured one at a time, with one transition per measurement.
E. t and t are the same as t .
F. t and t are the same as t .
G. t and t are the same as t .
H. All parameters and waveforms are not applicable to all devices.
L
O
PLZ PHZ dis
PZL PZH en
PLH PHL pd
£W
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VI
VI
VI
VM
VM
V/2
LOAD
tPZL tPLZ
tPHZ
tPZH
V–V
OH D
V+V
OL D
VM
VMVM
VM
VOL
VOH
VI
VI
VOH
VOL
VM
VM
VM
VM
tPLH tPHL
tPLH
tPHL
SN74LVC2G125
DUAL BUS BUFFER GATE
WITH 3-STATE OUTPUTS
SCES204MAPRIL 1999REVISED JANUARY 2007
Figure 1. Load Circuit and Voltage Waveforms
5
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PACKAGING INFORMATION
Orderable Device Status (1) Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
74LVC2G125DCTRE4 ACTIVE SM8 DCT 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
74LVC2G125DCTRE6 ACTIVE SM8 DCT 8 3000 Pb-Free
(RoHS)
CU SNBI Level-1-260C-UNLIM
74LVC2G125DCTRG4 ACTIVE SM8 DCT 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
74LVC2G125DCURE4 ACTIVE US8 DCU 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
74LVC2G125DCURG4 ACTIVE US8 DCU 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
74LVC2G125DCUTE4 ACTIVE US8 DCU 8 250 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
74LVC2G125DCUTG4 ACTIVE US8 DCU 8 250 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
SN74LVC2G125DCTR ACTIVE SM8 DCT 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
SN74LVC2G125DCUR ACTIVE US8 DCU 8 3000 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
SN74LVC2G125DCUT ACTIVE US8 DCU 8 250 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
SN74LVC2G125YZPR ACTIVE DSBGA YZP 8 3000 Green (RoHS &
no Sb/Br)
SNAGCU Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
PACKAGE OPTION ADDENDUM
www.ti.com 18-Sep-2008
Addendum-Page 1
to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF SN74LVC2G125 :
Automotive: SN74LVC2G125-Q1
NOTE: Qualified Version Definitions:
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
PACKAGE OPTION ADDENDUM
www.ti.com 18-Sep-2008
Addendum-Page 2
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type
Package
Drawing
Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1
(mm)
W
(mm)
Pin1
Quadrant
SN74LVC2G125DCUR US8 DCU 8 3000 180.0 9.2 2.25 3.35 1.05 4.0 8.0 Q3
SN74LVC2G125YZPR DSBGA YZP 8 3000 180.0 8.4 1.1 2.1 0.56 4.0 8.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 22-Jul-2008
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
SN74LVC2G125DCUR US8 DCU 8 3000 202.0 201.0 28.0
SN74LVC2G125YZPR DSBGA YZP 8 3000 220.0 220.0 34.0
PACKAGE MATERIALS INFORMATION
www.ti.com 22-Jul-2008
Pack Materials-Page 2
MECHANICAL DATA
MPDS049B – MAY 1999 – REVISED OCTOBER 2002
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
DCT (R-PDSO-G8) PLASTIC SMALL-OUTLINE PACKAGE
ÇÇÇÇÇ
Ç
ÇÇÇ
Ç
Ç
ÇÇÇ
Ç
ÇÇÇÇÇ
0,60
0,20
0,25
0°– 8°
0,15 NOM
Gage Plane
4188781/C 09/02
4,25
5
0,30
0,15
2,90
3,75
2,70
8
4
3,15
2,75
1
0,10
0,00
1,30 MAX
Seating Plane
0,10
M
0,13
0,65
PIN 1
INDEX AREA
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion
D. Falls within JEDEC MO-187 variation DA.
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