SCAS339S March   1994  – February 2017 SN74LVC126A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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1 Features

  • 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),
    <0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot),
    >2 V at VCC = 3.3 V, TA = 25°C
  • Latch-Up Performance Exceeds 250 mA
    Per JESD 17

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

3 Description

The SN74LVC126A device is a quadruple bus buffer gate designed for 1.65-V to 3.6-V VCC operation.

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.

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

SN74LVC126A ld_cas339.gif