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SN74LS126AD

SN74LS126AD

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    SOIC14_150MIL

  • 描述:

    IC BUF NON-INVERT 5.25V 14SOIC

  • 数据手册
  • 价格&库存
SN74LS126AD 数据手册
The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. D D D SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS Quad Bus Buffers 3-State Outputs Separate Control for Each Channel description SN54125, SN54126, SN54LS125A, SN54LS126A . . . J OR W PACKAGE SN74125, SN74126 . . . N PACKAGE SN74LS125A, SN74LS126A . . . D, N, OR NS PACKAGE (TOP VIEW) 1G, 1G* 1A 1Y 2G, 2G* 2A 2Y GND 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VCC 4G, 4G* 4A 4Y 3G, 3G* 3A 3Y *G on ’125 and ’LS125A devices; G on 126 and ’LS126A devices SN54LS125A, SN54LS126A . . . FK PACKAGE (TOP VIEW) 1A 1G, 1G* NC VCC 4G, 4G* These bus buffers feature three-state outputs that, when enabled, have the low impedance characteristics of a TTL output with additional drive capability at high logic levels to permit driving heavily loaded bus lines without external pullup resistors. When disabled, both output transistors are turned off, presenting a high-impedance state to the bus so the output will act neither as a significant load nor as a driver. The ’125 and ’LS125A devices’ outputs are disabled when G is high. The ’126 and ’LS126A devices’ outputs are disabled when G is low. SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A NC 4Y NC 3G, 3G* 2Y GND NC 3Y 3A 1Y NC 2G, 2G* NC 2A *G on ’125 and ’LS125A devices; G on 126 and ’LS126A devices NC – No internal connection 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  2002, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 ORDERING INFORMATION PDIP – N 0°C to 70°C SOIC – D SOP – NS CDIP – J –55°C 55°C to 125°C ORDERABLE PART NUMBER PACKAGE† TA TOP-SIDE MARKING Tube SN74LS125AN SN74LS125AN Tube SN74LS126AN SN74LS126AN Tube SN74LS125AD Tape and reel SN74LS125ADR Tube SN74LS126AD Tape and reel SN74LS126ADR Tape and reel SN74LS125ANSR 74LS125A Tape and reel SN74LS126ANSR 74LS126A Tube SN54LS125AJ SN54LS125AJ LS125A LS126A Tube SNJ54LS125AJ SNJ54LS125AJ CFP – W Tube SNJ54LS125AW SNJ54LS125AW LCCC – FK Tube SNJ54LS125AFK SNJ54LS125AFK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. logic diagram (each gate) ’125, ’LS125A G A Y ’126, ’LS126A G A Y Y=A 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 schematics (each gate) ’125 CIRCUITS 4 kW 2.5 kW 4 kW 2.5 kW 85 W 1 kW 4 kW CONTROL INPUT G 1.6 kW 1.6 kW VCC OUTPUT Y 625 W GND DATA INPUT A ’126 CIRCUITS 4 kW 2.5 kW 4.25 kW 4 kW 2.5 kW 1 kW 85 W 4 kW CONTROL INPUT G 1.6 kW 1.6 kW VCC OUTPUT Y 625 W DATA INPUT A GND absolute maximum ratings over operating free-air temperature (unless otherwise noted)† (’125 and ’126) Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Package thermal impedance, θJA (see Note 2): N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°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. Voltage values are with respect to network ground terminal. 2. The package termal impedance is calculated in accordance with JESD 51-7. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 schematics (each gate) ’LS125A CIRCUITS 10 kW 8 kW 18 kW 6 kW 4 kW 50 W 4 kW 20 kW INPUT G VCC OUTPUT 1.5 kW 750 W 5 kW GND INPUT A ’LS126A CIRCUITS 18 kW 12 kW 8 kW INPUT G 18 kW 6 kW 4 kW 50 W VCC 4 kW 20 kW 750 W OUTPUT 1.5 kW 5 kW GND INPUT A Resistor values shown are nominal. absolute maximum ratings over operating free-air temperature (unless otherwise noted)† (’LS125A and ’LS126A) Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76°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. Voltage values are with respect to network ground terminal. 2. The package termal impedance is calculated in accordance with JESD 51-7. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 recommended operating conditions SN54125 SN54126 SN74125 SN74126 UNIT MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.75 5 5.25 VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 0.8 V High-level output current –2 –5.2 mA IOL TA Low-level output current 16 16 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 –55 125 V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) TEST CONDITIONS† PARAMETER SN54125 SN54126 SN74125 SN74126 TYP‡ TYP‡ MIN VIK VOH VOL IOZ II IIH VCC = MIN, VCC = MIN, II = –12 mA VIH = 2 V, IOH = –2 mA IOH = –5.2 mA VIH = 2 V, VIL = 0.8 V, IOL = 16 mA VCC = MAX VIH = 2 V, VO = 2.4 V VO = 0.4 V IIL VCC = MAX, VCC = MAX, IOS§ VCC = MAX ICC VCC = MAX (see Note 3) MIN –1.5 VIL = 0.8 V VCC = MIN, VIL = 0.8 V VCC = MAX, MAX 2.4 UNIT MAX –1.5 3.3 2.4 V 3.1 04 0.4 V 04 0.4 40 40 –40 –40 1 1 V µA VI = 6.5 V VI = 2.4 V 40 40 µA VI = 0.4 V –1.6 –1.6 mA –70 mA –30 –70 –28 ’125 32 54 32 54 ’126 36 62 36 62 mA mA † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values are at VCC = 5 V, TA = 25°C. § Not more than one output should be shorted at a time. NOTE 3: Data inputs = 0 V; output control = 4.5 V for ’125 and 0 V for ’126. switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1) PARAMETER SN54125 SN74125 TEST CONDITIONS MIN tPLH tPHL tPZH tPZL tPHZ tPLZ RL = 400 Ω Ω, CL = 50 pF F RL = 400 Ω Ω, CL = 50 pF F RL = 400 Ω Ω, CL = 5 pF F POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54126 SN74126 TYP MAX MIN UNIT TYP MAX 8 13 8 13 12 18 12 18 11 17 11 18 16 25 16 25 5 8 10 16 7 12 12 18 ns ns ns 5 SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 recommended operating conditions SN54LS125A SN54LS126A SN74LS125A SN74LS126A UNIT MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.75 5 5.25 VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 V High-level output current –1 –2.6 mA IOL TA Low-level output current 12 24 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 –55 125 V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54LS125A SN54LS126A TEST CONDITIONS† PARAMETER MIN VIK VOH VOL IOZ VCC = MIN, VCC = MIN, II = –18 mA VIL = 0.7 V, VIH = 2 V VIL = 0.8 V VIL = 0.7 V, VCC = MIN, MIN VIH = 2 V VCC = MAX,, VIH = 2 V, VIL = 0.8 V, VIL = 0.8 V, VIL = 0 0.7 7V VIL = 0 0.8 8V II IIH VCC = MAX, VCC = MAX, VI = 7 V VI = 2.7 V IIL VCC = MAX, VI = 0.4 V IOS§ VCC = MAX ICC VCC = MAX (see Note 4) TYP‡ SN74LS125A SN74LS126A MAX MIN TYP‡ –1.5 IOH = –1 mA IOH = –2.6 mA UNIT MAX –1.5 2.4 V 2.4 IOL = 12 mA IOL = 12 mA 0.25 V 0.4 IOL = 24 mA VO = 2.4 V 0.25 0.4 0.35 0.5 V 20 VO = 0.4 V VO = 2.4 V –20 20 VO = 0.4 V µA –20 0.1 0.1 mA 20 20 µA ’LS125A-G inputs –0.2 –0.2 mA ’LS125A-A inputs; ’LS126A All inputs –0.4 –0.4 mA –225 mA –40 –225 –40 ’LS125A 11 20 11 20 ’LS126A 12 22 12 22 mA † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values are at VCC = 5 V, TA = 25°C. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. NOTE 4: Data inputs = 0 V; output control = 4.5 V for ’LS125A and 0 V for ’LS126A. switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1) PARAMETER SN54LS125A SN74LS125A TEST CONDITIONS MIN tPLH tPHL tPZH tPZL tPHZ tPLZ 6 RL = 667 Ω Ω, CL = 45 pF F RL = 667 Ω Ω, CL = 45 pF F RL = 667 Ω Ω, CL = 5 pF F POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54LS126A SN74LS126A TYP MAX 9 7 MIN UNIT TYP MAX 15 9 15 18 8 18 12 20 16 25 15 25 21 35 20 25 20 25 ns ns ns The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 PARAMETER MEASUREMENT INFORMATION SERIES 54/74 DEVICES VCC Test Point VCC RL From Output Under Test CL (see Note A) CL (see Note A) High-Level Pulse 1.5 V S2 LOAD CIRCUIT FOR 3-STATE OUTPUTS 3V Timing Input 1.5 V 1 kΩ Test Point LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS LOAD CIRCUIT FOR 2-STATE TOTEM-POLE OUTPUTS S1 (see Note B) CL (see Note A) RL (see Note B) RL From Output Under Test VCC From Output Under Test Test Point 1.5 V 0V tw Low-Level Pulse 1.5 V tsu 0V In-Phase Output (see Note D) tPHL VOH 1.5 V Out-of-Phase Output (see Note D) 1.5 V 3V 1.5 V Waveform 1 (see Notes C and D) tPLZ VOH 1.5 V 1.5 V VOL VOL Waveform 2 (see Notes C and D) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES ≈1.5 V 1.5 V tPZH tPLH 1.5 V 0V tPZL VOL tPHL 1.5 V 0V Output Control (low-level enabling) 1.5 V tPLH 1.5 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V 1.5 V 3V Data Input 1.5 V VOLTAGE WAVEFORMS PULSE DURATIONS Input th VOL + 0.5 V tPHZ VOH 1.5 V VOH – 0.5 V ≈1.5 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS NOTES: A. CL includes probe and jig capacitance. B. All diodes are 1N3064 or equivalent. C. 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. D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open for tPZL. E. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω; tr and tf ≤ 7 ns for Series 54/74 devices and tr and tf ≤ 2.5 ns for Series 54S/74S devices. F. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuits and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 PARAMETER MEASUREMENT INFORMATION SERIES 54LS/74LS DEVICES VCC Test Point VCC RL (see Note B) From Output Under Test CL (see Note A) High-Level Pulse 1.3 V S2 LOAD CIRCUIT FOR 3-STATE OUTPUTS 3V Timing Input 1.3 V 5 kΩ Test Point LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS LOAD CIRCUIT FOR 2-STATE TOTEM-POLE OUTPUTS S1 (see Note B) CL (see Note A) RL CL (see Note A) RL From Output Under Test VCC From Output Under Test Test Point 1.3 V 0V tw Low-Level Pulse 1.3 V tsu Data Input 1.3 V VOLTAGE WAVEFORMS PULSE DURATIONS 1.3 V 1.3 V Output Control (low-level enabling) 0V tPLH In-Phase Output (see Note D) 1.3 V 0V 3V 1.3 V 1.3 V 0V tPZL tPLZ tPHL VOH 1.3 V 1.3 V Waveform 1 (see Notes C and D) VOL tPZH tPLH VOH 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES ≈1.5 V 1.3 V VOL tPHL Out-of-Phase Output (see Note D) 3V 1.3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V Input th Waveform 2 (see Notes C and D) VOL + 0.5 V tPHZ VOH 1.3 V VOH – 0.5 V ≈1.5 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS NOTES: A. CL includes probe and jig capacitance. B. All diodes are 1N3064 or equivalent. C. 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. D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open for tPZL. E. Phase relationships between inputs and outputs have been chosen arbitrarily for these examples. F. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω, tr ≤ 1.5 ns, tf ≤ 2.6 ns. G. The outputs are measured one at a time with one input transition per measurement. Figure 2. Load Circuits and Voltage Waveforms 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) JM38510/32301B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301B2A Samples JM38510/32301BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301BCA Samples JM38510/32301BDA ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301BDA Samples M38510/32301B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301B2A Samples M38510/32301BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301BCA Samples M38510/32301BDA ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 32301BDA Samples SN54LS125AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54LS125AJ Samples SN74LS125AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS125A Samples SN74LS125ADBR ACTIVE SSOP DB 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS125A Samples SN74LS125ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS125A Samples SN74LS125ADRE4 ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS125A Samples SN74LS125AN ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS125AN Samples SN74LS125ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74LS125A Samples SN74LS126AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS126A Samples SN74LS126ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 LS126A Samples SN74LS126AN ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74LS126AN Samples SN74LS126ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74LS126A Samples SNJ54LS125AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54LS125AJ Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 10-Jun-2022 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) (3) Device Marking Samples (4/5) (6) SNJ54LS125AW ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54LS125AW (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
SN74LS126AD 价格&库存

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