SCES131H − MARCH 1998 − REVISED APRIL 2005 D 2-V to 5.5-V VCC Operation D Max tpd of 6.5 ns at 5 V D Typical VOLP (Output Ground Bounce) D D D <0.8 V at VCC = 3.3 V, TA = 25°C Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 3.3 V, TA = 25°C Support Mixed-Mode Voltage Operation on All Ports Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) 1OE 1A 1Y 2OE 2A 2Y GND 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VCC 4OE 4A 4Y 3OE 3A 3Y SN54LV126A . . . FK PACKAGE (TOP VIEW) 1A 1OE NC VCC 4OE D SN54LV126A . . . J OR W PACKAGE SN74LV126A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW) description/ordering information 1Y NC 2OE NC 2A These quadruple bus buffer gates are designed for 2-V to 5.5-V VCC operation. 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A NC 4Y NC 3OE 2Y GND NC 3Y 3A The ’LV126A devices feature independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low. 4 To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. NC − No internal connection ORDERING INFORMATION TOP-SIDE MARKING Tube of 50 SN74LV126AD Reel of 2500 SN74LV126ADR SOP − NS Reel of 2000 SN74LV126ANSR 74LV126A SSOP − DB Reel of 2000 SN74LV126ADBR LV126A Tube of 90 SN74LV126APW Reel of 2000 SN74LV126APWR Reel of 250 SN74LV126APWT TVSOP − DGV Reel of 2000 SN74LV126ADGVR LV126A CDIP − J Tube of 25 SNJ54LV126AJ SNJ54LV126AJ CFP − W Tube of 150 SNJ54LV126AW SNJ54LV126AW LCCC − FK Tube of 55 SNJ54LV126AFK SOIC − D −40°C to 85°C TSSOP − PW −55°C −55 C to 125 125°C C ORDERABLE PART NUMBER PACKAGE† TA LV126A LV126A SNJ54LV126AFK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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. Copyright 2005, Texas Instruments Incorporated ! "#$%&'( $#()(! * (+#,&)#( $%,,'( )! #+ -%./$)#( ")'0 ,#"%$! $#(+#,& # !-'$+$)#(! -', ' ',&! #+ '1)! (!,%&'(! !)(")," 2),,)(30 ,#"%$#( -,#$'!!(4 "#'! (# ('$'!!),/3 ($/%"' '!(4 #+ )// -),)&'',!0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SCES131H − MARCH 1998 − REVISED APRIL 2005 FUNCTION TABLE (each buffer) INPUTS OE A OUTPUT Y H H H H L L L X Z logic diagram (positive logic) 1OE 1A 2OE 2A 1 2 3OE 3 1Y 3A 4 5 4OE 6 2Y 4A 10 9 8 3Y 13 12 11 4Y Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Voltage range applied to any output in the high-impedance or power-off state, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA Package thermal impedance, θJA (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C † 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. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. 2. This value is limited to 5.5 V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51-7. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SCES131H − MARCH 1998 − REVISED APRIL 2005 recommended operating conditions (see Note 4) SN54LV126A VCC VIH High-level input voltage VIL Low-level input voltage VI Input voltage VO Output voltage IOH IOL ∆t/∆v MIN MAX 2 5.5 Supply voltage VCC = 2 V VCC = 2.3 V to 2.7 V VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V 1.5 Low-level output current Input transition rise or fall rate MIN MAX 2 5.5 VCC × 0.7 VCC × 0.7 VCC × 0.7 VCC × 0.7 VCC × 0.7 VCC × 0.7 VCC = 2 V VCC = 2.3 V to 2.7 V VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V High or low state 0 0 V V 0.5 0.5 VCC × 0.3 VCC × 0.3 3-state UNIT 1.5 VCC × 0.3 5.5 0 High-level output current SN74LV126A VCC 5.5 VCC × 0.3 VCC × 0.3 0 VCC × 0.3 5.5 0 0 V V VCC 5.5 V µA VCC = 2 V VCC = 2.3 V to 2.7 V −50 −50 −2 −2 VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V −8 −8 −16 −16 VCC = 2 V VCC = 2.3 V to 2.7 V 50 50 2 2 VCC = 3 V to 3.6 V VCC = 4.5 V to 5.5 V 8 8 16 16 VCC = 2.3 V to 2.7 V VCC = 3 V to 3.6 V 200 200 100 100 VCC = 4.5 V to 5.5 V 20 20 mA µA mA ns/V TA Operating free-air temperature −55 125 −40 85 °C NOTE 4: 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. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54LV126A PARAMETER VOH VOL TEST CONDITIONS IOH = −50 µA IOH = −2 mA VCC MIN 2 V to 5.5 V IOH = −8 mA IOH = −16 mA IOL = 50 µA IOL = 2 mA TYP MAX MIN 2.3 V VCC−0.1 2 VCC−0.1 2 3V 2.48 2.48 4.5 V 3.8 TYP MAX UNIT V 3.8 2 V to 5.5 V IOL = 8 mA IOL = 16 mA SN74LV126A 0.1 0.1 2.3 V 0.4 0.4 3V 0.44 0.44 4.5 V 0.55 0.55 0 to 5.5 V ±1 ±1 µA 5.5 V ±5 ±5 µA V II IOZ VI = 5.5 V or GND VO = VCC or GND ICC Ioff VI = VCC or GND, IO = 0 VI or VO = 0 to 5.5 V 5.5 V 20 20 µA 0 5 5 µA Ci VI = VCC or GND 3.3 V 1.6 1.6 pF * (+#,&)#( $#($',(! -,#"%$! ( ' +#,&)5' #, "'!4( -)!' #+ "'5'/#-&'(0 *),)$',!$ ")) )(" #', !-'$+$)#(! ),' "'!4( 4#)/!0 '1)! (!,%&'(! ,'!',5'! ' ,4 # $)(4' #, "!$#((%' '!' -,#"%$! 2#% (#$'0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SCES131H − MARCH 1998 − REVISED APRIL 2005 switching characteristics over recommended operating VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) FROM (INPUT) TO (OUTPUT) tpd A Y ten tdis OE Y OE tpd A ten tdis OE Y OE Y PARAMETER LOAD CAPACITANCE MIN TA = 25°C TYP MAX SN74LV126A MIN MAX MIN MAX 13* 1* 15.5* 1 15.5 13* 1* 15.5* 1 15.5 Y 5.7* 14.7* 1* 17* 1 17 Y 9.2 16.5 1 18.5 1 18.5 9.5 16.5 1 18.5 1 18.5 8.1 18.2 15 20.5 1 20.5 CL = 50 pF 2 FROM (INPUT) TO (OUTPUT) tpd A Y ten tdis OE Y OE Y tpd A ten tdis OE OE Y LOAD CAPACITANCE MIN temperature SN54LV126A MIN MAX 8* 1* 9.5* 1 9.5 5.1* 8* 1* 9.5* 1 9.5 4.4* 9.7* 1* 11.5* 1 11.5 Y 6.4 11.5 1 13 1 13 Y 6.6 11.5 1 13 1 13 6.1 13.2 1 15 1 15 CL = 50 pF 1.5 switching characteristics over recommended operating VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) FROM (INPUT) TO (OUTPUT) tpd A Y ten tdis OE Y OE Y tpd A ten tdis OE OE Y LOAD CAPACITANCE temperature SN54LV126A MIN MAX MIN MAX 1* 6.5* 1 6.5 3.6* 5.1* 1* 6* 1 6 3.3* 6.8* 1* 8* 1 8 Y 4.6 7.5 1 8.5 1 8.5 Y 4.6 7.1 1 8 1 8 4.3 8.8 1 10 1 10 tsk(o) * On products compliant to MIL-PRF-38535, this parameter is not production tested. * (+#,&)#( $#($',(! -,#"%$! ( ' +#,&)5' #, "'!4( -)!' #+ "'5'/#-&'(0 *),)$',!$ ")) )(" #', !-'$+$)#(! ),' "'!4( 4#)/!0 '1)! (!,%&'(! ,'!',5'! ' ,4 # $)(4' #, "!$#((%' '!' -,#"%$! 2#% (#$'0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 ns SN74LV126A 5.5* CL = 50 pF ns range, 3.5* CL = 15 pF UNIT 1.5 free-air TA = 25°C MIN TYP MAX ns SN74LV126A MAX CL = 15 pF ns range, MIN 5* UNIT 2 free-air TA = 25°C TYP MAX tsk(o) * On products compliant to MIL-PRF-38535, this parameter is not production tested. 4 SN54LV126A range, 7.4* switching characteristics over recommended operating VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER temperature 7.1* CL = 15 pF tsk(o) * On products compliant to MIL-PRF-38535, this parameter is not production tested. PARAMETER free-air 1 UNIT ns ns SCES131H − MARCH 1998 − REVISED APRIL 2005 noise characteristics, VCC = 3.3 V, CL = 50 pF, TA = 25°C (see Note 5) SN74LV126A PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 0.3 0.8 V VOL(V) Quiet output, minimum dynamic VOL −0.2 −0.8 V VOH(V) Quiet output, minimum dynamic VOH 3.1 VIH(D) High-level dynamic input voltage VIL(D) Low-level dynamic input voltage V 2.31 V 0.97 V VCC 3.3 V TYP UNIT 5V 15.9 NOTE 5: Characteristics are for surface-mount packages only. operating characteristics, TA = 25°C PARAMETER Cpd Power dissipation capacitance TEST CONDITIONS Outputs enabled POST OFFICE BOX 655303 CL = 50 pF, • DALLAS, TEXAS 75265 f = 10 MHz 14.4 pF 5 SCES131H − MARCH 1998 − REVISED APRIL 2005 PARAMETER MEASUREMENT INFORMATION From Output Under Test RL = 1 kΩ From Output Under Test Test Point VCC Open S1 TEST GND S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain CL (see Note A) CL (see Note A) Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS VCC 50% VCC Timing Input 0V tw tsu VCC 50% VCC 50% VCC Input th VCC 50% VCC Data Input 50% VCC 0V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATION VCC 50% VCC Input 50% VCC tPLH In-Phase Output 50% VCC VOH 50% VCC VOL VOH 50% VCC VOL 50% VCC 0V Output Waveform 1 S1 at VCC (see Note B) tPLH 50% VCC 50% VCC tPLZ tPZL tPHL tPHL Out-of-Phase Output 0V VCC Output Control ≈VCC 50% VCC tPHZ tPZH Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOL + 0.3 V VOL 50% VCC VOH − 0.3 V VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL 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 ≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns. D. The outputs are measured one at a time, with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. H. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 27-May-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) SN74LV126AD ACTIVE SOIC D 14 50 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126ADBR ACTIVE SSOP DB 14 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126ADBRE4 ACTIVE SSOP DB 14 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126ADE4 ACTIVE SOIC D 14 50 TBD Call TI SN74LV126ADGVR ACTIVE TVSOP DGV 14 2000 Pb-Free (RoHS) CU NIPDAU Call TI Level-1-250C-UNLIM SN74LV126ADGVRE4 ACTIVE TVSOP DGV 14 2000 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126ADR ACTIVE SOIC D 14 2500 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126ADRE4 ACTIVE SOIC D 14 2500 TBD Call TI SN74LV126ANSR ACTIVE SO NS 14 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126ANSRE4 ACTIVE SO NS 14 2000 Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEAR/ Level-1-235C-UNLIM SN74LV126APW ACTIVE TSSOP PW 14 90 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126APWE4 ACTIVE TSSOP PW 14 90 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126APWG4 ACTIVE TSSOP PW 14 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV126APWR ACTIVE TSSOP PW 14 2000 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126APWRE4 ACTIVE TSSOP PW 14 2000 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126APWRG4 ACTIVE TSSOP PW 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV126APWT ACTIVE TSSOP PW 14 250 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM SN74LV126APWTE4 ACTIVE TSSOP PW 14 250 Pb-Free (RoHS) CU NIPDAU Level-1-250C-UNLIM Call TI (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) 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. 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) Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 27-May-2005 (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 to Customer on an annual basis. Addendum-Page 2 MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°–8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-150 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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