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SN74LVC126APW

SN74LVC126APW

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    TSSOP14_5X4.4MM

  • 描述:

    IC BUF NON-INVERT 3.6V 14TSSOP

  • 数据手册
  • 价格&库存
SN74LVC126APW 数据手册
Product Folder Order Now Support & Community Tools & Software Technical Documents Reference Design SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 SN74LVC126A Quadruple Bus Buffer Gate With 3-State Outputs 1 Features 3 Description • • • • • The SN74LVC126A device is a quadruple bus buffer gate designed for 1.65-V to 3.6-V VCC operation. 1 • • Operates From 1.65 V to 3.6 V Specified From –40°C to +125°C Inputs Accept Voltages up to 5.5 V Maximum tpd of 4.7 ns at 3.3 V Typical VOLP (Output Ground Bounce), 2 V at VCC = 3.3 V, TA = 25°C Latch-Up Performance Exceeds 250 mA Per JESD 17 The SN74LVC126A device features independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is low. To ensure the high-impedance state during power up or power down, OE must be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. 2 Applications • • • • • • • • • • • AV Receivers Audio Docks: Portable Blu-ray Players and Home Theaters MP3 Players or Recorders Personal Digital Assistants (PDAs) Power: Telecom, Server, and AC-DC Supplies (Single-Controller, Analog, and Digital) Solid State Drives (SSDs): Client and Enterprise TVs: LCD, Digital, and High-Definition (HDTV) Tablets: Enterprise Video Analytics: Server Wireless Headsets, Keyboards, and Mice Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V and 5-V system environment. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN74LVC126A-DR SOIC (14) 8.65 mm × 3.91 mm SN74LVC126A-DBR SSOP (14) 6.20 mm × 5.30 mm SN74LVC126A-DGVR TVSOP (14) 3.60 mm × 4.40 mm SN74LVC126A-NSR SOP (14) 10.20 mm × 5.30 mm SN74LVC126A-PWR TSSOP (14) 5.00 mm × 4.40 mm SN74LVC126A-RGYR VQFN (14) 3.50 mm × 3.50 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic 1OE 1A 2OE 2A 1 2 3OE 3 1Y 4 5 3A 4OE 6 2Y 4A 10 9 8 3Y 13 12 11 4Y Copyright © 2016, Texas Instruments Incorporated 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 6.7 4 4 4 5 5 7 9 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Switching Characteristics .......................................... Typical Characteristics .............................................. Parameter Measurement Information .................. 9 Detailed Description ............................................ 11 8.1 Overview ................................................................. 11 8.2 Functional Block Diagram ....................................... 11 8.3 Feature Description ................................................ 11 8.4 Device Functional Modes ....................................... 11 9 Application and Implementation ........................ 12 9.1 Application Information............................................ 12 9.2 Typical Application .................................................. 12 10 Power Supply Recommendations ..................... 13 11 Layout................................................................... 14 11.1 Layout Guidelines ................................................. 14 11.2 Layout Example .................................................... 14 12 Device and Documentation Support ................. 15 12.1 12.2 12.3 12.4 12.5 12.6 Documentation Support ........................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 15 15 15 15 15 15 13 Mechanical, Packaging, and Orderable Information ........................................................... 15 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision R (October 2016) to Revision S • Page Changed pin descriptions to match function in Pin Functions table....................................................................................... 3 Changes from Revision Q (July 2005) to Revision R Page • Added Applications section, ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section ...... 1 • Deleted Ordering Information table; see POA at the end of the data sheet........................................................................... 1 • Changed temperature rating for VQFN package From: –40°C to 85°C To: –40°C to +125°C throughout the data sheet .... 1 • Changed values in the Thermal Information table: 86 to 98.4 for (D), 96 to 112.2 for (DB), 127 to 140.9 for (DGV), 76 to 93.9 for (NS), 113 to 127.7 for (PW), 47 to 35 for (RGY) ............................................................................................. 5 2 Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 5 Pin Configuration and Functions D, DB, DGV, NS, or PW Package 14-Pin SOIC, SSOP, TVSOP, SOP, or TSSOP Top View 13 3 12 4 11 5 10 6 9 7 8 VCC 4OE 4A 4Y 3OE 3A 3Y 1A 1Y 2OE 2A 2Y VCC 2 1 14 2 13 4OE 3 12 4A 4 11 4Y 5 10 3OE 9 3A 6 7 8 3Y 14 1OE 1 GND 1OE 1A 1Y 2OE 2A 2Y GND RGY Package 14-Pin VQFN With Thermal Pad Top View Pin Functions PIN NO. NAME I/O DESCRIPTION 1 1OE I Output enable 1 2 1A I Gate 1 input 3 1Y O Gate 1 output 4 2OE I Output enable 2 5 2A I Gate 2 input 6 2Y O Gate 2 output 7 GND — Ground pin 8 3Y O Gate 3 output 9 3A I Gate 3 input 10 3OE I Output enable 3 11 4Y O Gate 4 output 12 4A I Gate 4 input 13 4OE I Output Enable 4 14 VCC — Power pin Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A 3 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) Supply voltage, VCC Input voltage, VI (2) Output voltage, VO (2) (3) MIN MAX UNIT –0.5 6.5 V –0.5 6.5 V –0.5 VCC + 0.5 V Input clamp current, IIK VI < 0 –50 mA Output clamp current, IOK VO < 0 –50 mA Continuous output current, IO ±50 mA Continuous current through VCC or GND ±100 mA 500 mW 150 °C 150 °C Power dissipation, Ptot TA = –40°C to +125°C (4) (5) Maximum junction temperature, TJ Storage temperature, Tstg (1) (2) (3) (4) (5) –65 Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. The value of VCC is provided in Recommended Operating Conditions. For the D package: above 70°C, the value of Ptot derates linearly with 8 mW/K. For the DB, NS, and PW packages: above 60°C, the value of Ptot derates linearly with 5.5 mW/K. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±1500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. This rating was tested on the D (SOIC) package. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. This rating was tested on the D (SOIC) package. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) (1) MIN VCC Supply voltage VIH High-level input voltage Operating Data retention only VCC = 1.65 V to 1.95 V 1.65 Low-level input voltage MAX 3.6 1.5 UNIT V 0.65 × VCC VCC = 2.3 V to 2.7 V 1.7 VCC = 2.7 V to 3.6 V 2 VCC = 1.65 V to 1.95 V VIL NOM V 0.35 × VCC VCC = 2.3 V to 2.7 V 0.7 VCC = 2.7 V to 3.6 V 0.8 V VI Input voltage 0 5.5 V VO Output voltage 0 VCC V VCC = 1.65 V IOH (1) 4 High-level output current –4 VCC = 2.3 V –8 VCC = 2.7 V –12 VCC = 3 V –24 mA All unused inputs of the device must be held at VCC or GND to ensure proper device operation. See the TI application report, Implications of Slow or Floating CMOS Inputs. Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 Recommended Operating Conditions (continued) over operating free-air temperature range (unless otherwise noted)(1) MIN NOM MAX VCC = 1.65 V IOL Low-level output current Δt/Δv Input transition rise or fall rate TA Operating free-air temperature UNIT 4 VCC = 2.3 V 8 VCC = 2.7 V 12 VCC = 3 V 24 –40 mA 10 ns/V 125 °C 6.4 Thermal Information SN74LVC126A THERMAL METRIC (1) D (SOIC) DB (SSOP) DGV (TVSOP) NS (SOP) PW (TSSOP) RGY (VQFN) 14 PINS 14 PINS 14 PINS 14 PINS 14 PINS 14 PINS (2) (2) RθJA Junction-to-ambient thermal resistance RθJC(top) Junction-to-case (top) thermal resistance 58.2 64.2 59.9 51.7 RθJB Junction-to-board thermal resistance 52.6 59.6 70.2 ψJT Junction-to-top characterization parameter 24.1 28.3 ψJB Junction-to-board characterization parameter 52.4 59.1 (1) (2) (3) 98.4 (2) 112.2 35 (3) °C/W 56 43.6 °C/W 52.7 69.5 11.6 °C/W 9.1 20.7 8.9 0.4 °C/W 69.5 52.3 68.9 11.8 °C/W 140.9 93.9 (2) 127.7 (2) UNIT For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. The package thermal impedance is calculated in accordance with JESD 51-7. The package ther mal impedance is calculated in accordance with JESD 51-5. 6.5 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –100 µA, VCC = 1.65 V to 3.6 V MIN TA = 25°C VCC – 0.2 TA = –40°C to +125°C VCC – 0.3 TA = 25°C IOH = –4 mA, VCC = 1.65 V VOH VCC = 2.7 V 1.2 TA = –40°C to +125°C 1.05 IOH = –12 mA VCC = 3 V IOH = –24 mA, VCC = 3 V 1.7 TA = –40°C to +125°C 1.55 TA = –40°C to +125°C TA = 25°C TA = –40°C to +125°C 2.2 2.4 2.25 2.3 TA = –40°C to +85°C 2.2 2 Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A V 2.05 TA = 25°C TA = –40°C to +125°C UNIT 1.9 TA = –40°C to +85°C TA = 25°C MAX 1.29 TA = –40°C to +85°C TA = 25°C IOH = –8 mA, VCC = 2.3 V TYP 5 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com Electrical Characteristics (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOL = 100 µA, VCC = 1.65 V to 3.6 V IOL = 4 mA, VCC = 1.65 V VOL IOL = 8 mA, VCC = 2.3 V TYP 0.1 TA = –40°C to +85°C 0.2 TA = –40°C to +125°C 0.3 TA = 25°C 0.24 TA = –40°C to +85°C 0.45 TA = –40°C to +125°C 0.6 TA = 25°C 0.3 TA = –40°C to +85°C 0.7 TA = –40°C to +125°C 0.75 0.55 TA = –40°C to +125°C 0.8 TA = 25°C ±1 TA = –40°C to +85°C ±5 TA = –40°C to +125°C ±20 TA = 25°C IOZ VO = VCC or GND, VCC = 3.6 V VI = VCC or GND, IO = 0, VCC = 3.6 V ΔICC One input at VCC – 0.6 V, other inputs at VCC or GND, VCC = 2.7 V to 3.6 V Ci VI = VCC or GND, VCC = 3.3 V Co VO = VCC or GND, VCC = 3.3 V Cpd 6 Power dissipation capacitance per gate Outputs enabled f = 10 MHz, TA = 25°C Outputs disabled TA = –40°C to +85°C ±10 TA = –40°C to +125°C ±20 µA 1 TA = –40°C to +85°C 10 TA = –40°C to +125°C 40 TA = 25°C 500 TA = –40°C to +125°C 5000 µA µA 4.5 pF 7 pF VCC = 1.8 V 20 VCC = 2.5 V 21 VCC = 3.3 V 22 VCC = 1.8 V 2 VCC = 2.5 V 3 VCC = 3.3 V 4 Submit Documentation Feedback µA ±1 TA = 25°C ICC V 0.6 TA = 25°C VI = 5.5 V or GND, VCC = 3.6 V UNIT 0.4 TA = –40°C to +125°C IOL = 24 mA, VCC = 3 V MAX TA = 25°C TA = 25°C IOL = 12 mA, VCC = 2.7 V II MIN pF Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 6.6 Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted; see Parameter Measurement Information) PARAMETER TEST CONDITIONS TA = 25°C VCC = 1.8 V ± 0.15 V tpd From A (input) to Y (output) ten From OE (input) to Y (output) 2.7 9.3 1 2.9 5 TA = –40°C to +85°C 5.2 TA = –40°C to +125°C 6.5 1 2.5 4.7 TA = –40°C to +125°C 6 4.8 9.5 TA = –40°C to +85°C 10 TA = –40°C to +125°C 11.5 1 2.8 7.8 TA = –40°C to +85°C 8.3 TA = –40°C to +125°C 10.4 1 3.1 6.1 TA = –40°C to +85°C 6.3 TA = –40°C to +125°C 8 1 2.5 5.7 TA = –40°C to +125°C 7.5 Submit Documentation Feedback Product Folder Links: SN74LVC126A ns 5.5 TA = –40°C to +85°C Copyright © 1994–2017, Texas Instruments Incorporated ns 4.5 TA = –40°C to +85°C 1 UNIT 6.7 TA = –40°C to +125°C TA = 25°C VCC = 3.3 V ± 0.3 V 1 7.2 TA = 25°C VCC = 2.7 V 9.3 TA = –40°C to +85°C TA = 25°C VCC = 2.5 V ± 0.2 V 4.2 11.3 TA = 25°C VCC = 1.8 V ± 0.15 V 1 TA = –40°C to +125°C TA = 25°C VCC = 3.3 V ± 0.3 V MAX 9.8 TA = 25°C VCC = 2.7 V TYP TA = –40°C to +85°C TA = 25°C VCC = 2.5 V ± 0.2 V MIN 7 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com Switching Characteristics (continued) over recommended operating free-air temperature range (unless otherwise noted; see Parameter Measurement Information) PARAMETER TEST CONDITIONS TA = 25°C VCC = 1.8 V ± 0.15 V tdis From OE (input) to Y (output) tsk(o) 8 VCC = 3.3 V ± 0.3 V 1 4.4 12.1 TA = –40°C to +125°C 14.1 1 2.7 8.7 TA = –40°C to +125°C 10.8 1 2.7 6.5 TA = –40°C to +85°C 6.7 TA = –40°C to +125°C 8.5 1.3 2.3 ns 5.8 TA = –40°C to +85°C 6 TA = –40°C to +125°C 7.5 TA = –40°C to +85°C 1 TA = –40°C to +125°C 1.5 Submit Documentation Feedback UNIT 8.2 TA = –40°C to +85°C TA = 25°C VCC = 3.3 V ± 0.3 V MAX 12.6 TA = 25°C VCC = 2.7 V TYP TA = –40°C to +85°C TA = 25°C VCC = 2.5 V ± 0.2 V MIN ns Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 6.7 Typical Characteristics TA = 25°C 8 7 6 TPD (ns) 5 4 3 2 1 TPD 0 1.5 2.0 2.5 3.0 3.5 4.0 VCC Input (V) C001 Figure 1. TPD vs VCC 7 Parameter Measurement Information VLOAD From Output Under Test CL (see Note A) S1 RL Open GND RL Figure 2. Load Circuit Table 1. Timing Test Conditions TEST S1 tPLH and tPHL Open tPLZ and tPZL VLOAD tPHZ and tPZH GND Table 2. Electrical Characteristics Test Conditions VCC INPUTS VM VLOAD CL ≤2 ns VCC/2 2 × VCC ≤2 ns VCC/2 2 × VCC 2.7 V ≤2.5 ns 1.5 V 2.7 V ≤2.5 ns 1.5 V VI tr/tf 1.8 V ± 0.15 V VCC 2.5 V ± 0.2 V VCC 2.7 V 3.3 V ± 0.3 V RL VΔ 30 pF 1 kΩ 0.15 V 30 pF 500 Ω 0.15 V 6V 50 pF 500 Ω 0.3 V 6V 50 pF 500 Ω 0.3 V Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A 9 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com tw VI Input VM Figure 3. Voltage Waveforms, Pulse Duration VI Timing Input VM 0V t su th 0V VM t PZL Output Waveform 1 S1 at VLOAD (see Note B) VM VOH - VD VOH ≈0 V C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. H. VOH All parameters and waveforms are not applicable to all devices. VOL Figure 6. Voltage Waveforms, Enable and Disable Times Low- and High-Level Enabling t PHL VOH VM VOL t PLH VM t PHZ Waveform 1 is for an output with internal conditions such that the output is low, except when disables 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. 0V t PHL VOL CL includes probe and jig capacitance. VI VM VOL + VD B. VM VM t PLH VLOAD /2 t PZH Figure 4. Voltage Waveforms, Setup and Hold Times VM t PLZ VM Output Waveform 2 S1 at GND (see Note B) 0V Output VM A. VI Data Input Output VM VM 0V Input VI Output Control VM Figure 5. Voltage Waveforms, Propagation Delay Times Inverting and Noninverting Outputs 10 Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 8 Detailed Description 8.1 Overview The SN74LVC126A quadruple buffer is designed for 1.65-V to 3.6-V VCC operation and features tri-state outputs. The SN74LVC126A devices perform the Boolean function Y = A in positive logic. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as downtranslators in a mixed 3.3-V or 5-V system environment. 8.2 Functional Block Diagram 1OE 1A 2OE 2A 1 3OE 2 3 1Y 3A 4 4OE 5 6 2Y 4A 10 9 8 3Y 13 12 11 4Y Copyright © 2016, Texas Instruments Incorporated 8.3 Feature Description The SN74LVC126A device features four independent buffers with 3-state outputs, and is designed to operate from a VCC of 1.65 V to 3.6 V. When the output enable (OE) input is low, the corresponding output is disabled and enters a high-impedance state. This device also features high-tolerance inputs, allowing for voltage translation in mixed voltage systems. Wide operating temperature range enables this device to be used in any application, including rugged or extreme environments. 8.4 Device Functional Modes The SN74LVC126A's 3-state outputs allow the outputs to be disabled using the output enable (OE) pin. To ensure the high-impedance state during power up and power down, OE must be tied to GND through a pulldown resistor. The minimum value of the resistor is determined by the current-sourcing capability of the driver. Table 3. Function Table (Each Buffer) INPUTS OUTPUT OE A Y H H H H L L L X Hi-Z Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A 11 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The SN74LVC126A device is a high-drive, CMOS device that can be used for a multitude of buffer-type functions. It can produce 24 mA of drive current at 3 V. Therefore, this device is ideal for driving multiple inputs and for high-speed applications up to 100 MHz. The inputs and outputs are 5.5-V tolerant allowing the device to translate up to 5.5 V or down to VCC. 9.2 Typical Application 1.65-V to 3.6-V VCC 1OE 1A System Inputs/MCU 1Y System Outputs/MCU 4OE 4A 4Y Copyright © 2016, Texas Instruments Incorporated Figure 7. Typical Buffer Application and Supply Voltage 9.2.1 Design Requirements This device uses CMOS technology and has balanced output drive. Take care to avoid bus contention because it can drive currents that would exceed maximum limits. The high drive also creates fast edges into light loads; therefore, routing and load conditions must be considered to prevent ringing. 12 Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 Typical Application (continued) 9.2.2 Detailed Design Procedure 1. Recommended Input Conditions – Rise time and fall time specifications: See (Δt/ΔV) in Recommended Operating Conditions. – Specified high and low levels: See (VIH and VIL) in Recommended Operating Conditions. – Inputs are overvoltage tolerant allowing them to go as high as 5.5 V at any valid VCC. 2. Recommended Output Conditions – Load currents must not exceed 25 mA per output and 50 mA total for the part. – Outputs must not be pulled above 5.5 V. 9.2.3 Application Curve Figure 8. Supply Current vs Input Frequency 10 Power Supply Recommendations The power supply can be any voltage between the minimum and maximum supply voltage rating in the Recommended Operating Conditions. Each VCC pin must have a good bypass capacitor to prevent power disturbance. For devices with a single supply, 0.1 µF is recommended; if there are multiple VCC pins, then 0.01 µF or 0.022 µF is recommended for each power pin. It is acceptable to parallel multiple bypass caps to reject different frequencies of noise. A 0.1 µF and a 1 µF are commonly used in parallel. The bypass capacitor must be installed as close to the power pin as possible for best results. Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A 13 SN74LVC126A SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 www.ti.com 11 Layout 11.1 Layout Guidelines When using multiple bit logic devices, inputs must never float. In many cases, functions or parts of functions of digital logic devices are unused, for example, when only two inputs of a triple-input and gate are used, or only 3 of the 4 buffer gates are used. Such input pins must not be left unconnected because the undefined voltages at the outside connections result in undefined operational states. Figure 9 specifies the rules that must be observed under all circumstances. All unused inputs of digital logic devices must be connected to a high or low bias to prevent them from floating. The logic level that must be applied to any particular unused input depends on the function of the device. Generally they are tied to GND or VCC, whichever makes more sense or is more convenient. It is generally acceptable to float outputs, unless the part is a transceiver. 11.2 Layout Example Vcc Unused Input Input Output Unused Input Output Input Figure 9. Layout Diagram 14 Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A SN74LVC126A www.ti.com SCAS339S – MARCH 1994 – REVISED FEBRUARY 2017 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation see the following: TI application report, Implications of Slow or Floating CMOS Inputs (SCBA004) 12.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 12.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.4 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 12.5 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 1994–2017, Texas Instruments Incorporated Product Folder Links: SN74LVC126A 15 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-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) SN74LVC126AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126ADBR ACTIVE SSOP DB 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126ADGVR ACTIVE TVSOP DGV 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126ADRE4 ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126ADRG4 ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126ADT ACTIVE SOIC D 14 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LVC126A Samples SN74LVC126APW ACTIVE TSSOP PW 14 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126APWG4 ACTIVE TSSOP PW 14 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126APWR ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126APWRE4 ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126APWRG4 ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126APWT ACTIVE TSSOP PW 14 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 LC126A Samples SN74LVC126ARGYR ACTIVE VQFN RGY 14 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 LC126A Samples SN74LVC126ARGYRG4 ACTIVE VQFN RGY 14 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 LC126A Samples (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. Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 (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
SN74LVC126APW 价格&库存

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SN74LVC126APW
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    • 1000+3.08000

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